JP6409482B2 - Battery system - Google Patents

Description

  The present invention relates to a battery system. More specifically, the present invention relates to a battery system capable of realizing an improvement in battery output.

  Conventionally, for the purpose of providing an air battery that is not easily poisoned by carbon dioxide in the air, a main body having a positive electrode catalyst and a negative electrode in a housing material, an electrolytic solution, an electrolytic solution tank, and an electrolytic solution A pump that circulates the gas, and an oxygen intake part in the middle of the circulation of the electrolyte, and a pipe that connects the main body part, the tank, the pump, and the oxygen intake part, and the oxygen selective permeable membrane is placed on the oxygen intake part. An air battery has been proposed (see Patent Document 1).

JP 2012-84261 A

  However, in the air battery described in Patent Document 1, high output is not particularly studied. Therefore, the inventors of the present invention have studied mainly the reduction of the distance between the electrodes for high output in the circulation type battery. As the flow of the electrolyte varies, it is difficult to ensure uniform power generation and high output. New technical knowledge that it was not possible to achieve

  The present invention has been made based on such new technical knowledge. And an object of this invention is to provide the battery system which can implement | achieve an output improvement.

The inventors of the present invention have made extensive studies in order to achieve the above object. As a result, the flow direction of the electrolytic solution in the electrolytic solution storage unit between the electrolytic solution inflow unit and the electrolytic solution discharge unit connected to the electrolytic solution storage unit of the battery is changed between the electrolytic solution inflow unit and the electrolytic solution discharge unit. such as by disposing the flow path forming structure member for changing a direction different from the flow direction of the electrolyte connecting, it found that the above object can be attained, thereby completing the present invention.

That is, the battery system of the present invention includes a positive electrode, a negative electrode, and a frame member, and the positive electrode and the negative electrode have a structure facing each other through an electrolyte solution containing portion surrounded by the positive electrode, the negative electrode, and the frame member, The battery includes a battery that is formed by supplying at least one of an electrolyte solution and a solvent for preparing the electrolyte solution to the electrolyte solution storage unit, and an electrolyte solution circulation unit that circulates the electrolyte solution in the electrolyte solution storage unit. The battery system is disposed between the electrolyte inflow portion connected to the electrolyte storage portion and the electrolyte discharge portion, and the flow direction of the electrolyte in the electrolyte storage portion is changed between the electrolyte inflow portion and the electrolytic solution. A flow path forming structure member that changes in a direction different from the flow direction of the electrolyte solution connecting the liquid discharge portion is provided. Moreover, the battery has an electrode non-opposing portion where the positive electrode and the negative electrode are not opposed to each other at the upper part of the electrolytic solution housing portion.

According to the present invention, a positive electrode, a negative electrode, and a frame member are provided, and the positive electrode and the negative electrode are opposed to each other via an electrolyte container that is surrounded by the positive electrode, the negative electrode, and the frame member. A battery formed by supplying at least one liquid of a solvent for preparing an electrolytic solution to the electrolytic solution storage unit, and an electrolytic solution circulation unit for circulating the electrolytic solution in the electrolytic solution storage unit, and containing the electrolytic solution Between the electrolyte inflow part and the electrolyte discharge part connected to the part, and the flow direction of the electrolyte in the electrolyte storage part is determined by the electrolyte solution connecting the electrolyte inflow part and the electrolyte discharge part. A flow path forming structure member that changes in a direction different from the flow direction is provided , and the battery further includes an electrode non-facing portion in which the positive electrode and the negative electrode are not opposed to each other at the upper part of the electrolytic solution housing portion . Therefore, it is possible to provide a battery system that can improve output.

FIG. 1 is a configuration diagram schematically showing the battery system according to the first embodiment. FIGS. 2A and 2B are explanatory views schematically showing an operation when supplying, collecting or circulating a liquid in the battery system according to the first embodiment. 3A to 3C are cross-sectional views schematically showing batteries according to first to third examples. 4A to 4C are cross-sectional views schematically showing batteries according to fourth to sixth examples. FIG. 5 is a configuration diagram schematically showing the battery system according to the second embodiment. FIG. 6 is an explanatory view schematically showing an operation when supplying, collecting or circulating a liquid in the battery system according to the second embodiment. FIG. 7 is a configuration diagram schematically showing a battery system according to the third embodiment. FIGS. 8A and 8B are explanatory diagrams schematically showing an operation when supplying, collecting, or circulating a liquid in the battery system according to the third embodiment. FIG. 9 is a configuration diagram schematically showing a battery system according to the fourth embodiment. FIG. 10 is an explanatory view schematically showing an operation when supplying, collecting or circulating a liquid in the battery system according to the fourth embodiment.

  Hereinafter, a battery system according to an embodiment of the present invention will be described in detail with reference to the drawings. In addition, the dimension ratio of drawing quoted with the following forms is exaggerated on account of description, and may differ from an actual ratio.

<First form>
First, the battery system according to the first embodiment will be described in detail with reference to the drawings. FIG. 1 is a schematic configuration diagram schematically showing the battery system according to the first embodiment. FIGS. 2A and 2B are explanatory views schematically showing an operation when supplying, collecting, or circulating a liquid in the battery system according to the first embodiment.

  As shown in FIGS. 1 and 2, the battery system 1 of the present embodiment includes a cartridge type unit A, a battery control unit B, and an electrolyte solution circulation unit C.

  The cartridge type unit A includes the storage container 10 and a battery 20 that is an assembled battery including a plurality of cells, either integrally or separately, and either one or both of the storage container 10 and the battery 20 are connected to the storage container 10. A plurality of liquid flow paths 30 and 32 that connect the battery 20 are provided. In this embodiment, the liquid channel 30 is connected to the bottom of the battery 20 and the bottom of the storage container 10. In the present embodiment, the liquid channel 32 is connected to the upper part of the battery 20 and the upper part of the storage container 10. Furthermore, in this embodiment, the liquid flow paths 30 and 32 are enclosed in the storage container 10 and the battery 20, in other words, the liquid flow paths 30 and 32 are formed inside the cartridge type unit A. Moreover, in this form, the liquid flow path 32 and the storage container 10 have the filters 61 and 62 inside them.

  Further, the battery control section B includes a mounting section 40 that can mount and demount the cartridge type unit A. In the present embodiment, the battery control unit B includes a motor 51 as the drive unit 50 of the electrolyte circulation unit C.

  Further, the electrolytic solution circulation section C circulates the liquid between the storage container 10 and the battery 20 via the liquid flow paths 30 and 32. In the present embodiment, the electrolyte circulation unit C includes a motor 51, a rotor 52A and a roller 52B driven by the motor 51, a liquid flow path 30, and a tube pump 52 constituted by the storage container 10. A liquid flow path 32. Specifically, the tube portion 30A of the liquid flow path 30 is sandwiched between the storage container 10 functioning as a pump head and a roller 52B attached to a rotor 52A connected to a rotor (not shown) of the motor 51, As shown by the arrow X in FIG. 2A, the liquid is supplied from the storage container 10 to the battery 20 through the liquid flow path 30 when the rotor 52 </ b> A rotates counterclockwise. In addition, when the liquid level of the electrolytic solution in the battery 20 reaches the upper end of the liquid channel 32, the liquid is recovered from the battery 20 to the storage container 10 through the liquid channel 32, and electrolysis is performed as a whole. Liquid circulation takes place. In this embodiment, when the motor 51 as the drive unit 50 is driven in reverse, the rotor 52A rotates clockwise as indicated by an arrow Y in FIG. Thus, the liquid is collected from the battery 20 to the storage container 10, the liquid is supplied from the storage container 10 to the battery 20 through the liquid flow path 32, and the electrolyte is circulated as a whole. It can also be configured.

  Here, each configuration will be described in more detail.

  Examples of the storage container 10 include one that stores either one or both of an electrolytic solution and a solvent for preparing the electrolytic solution.

  And as said electrolyte solution, what contains electrolyte support salt and the solvent which melt | dissolves this can be mentioned, for example. Examples of the electrolyte supporting salt include potassium chloride, sodium chloride, potassium hydroxide, and the like. Moreover, as a solvent, water, an organic solvent, etc. can be mentioned, for example. However, it is not limited to these, For example, it is preferable to apply the conventionally well-known electrolyte solution applied to an air battery, for example. An air battery has a high energy density per volume and a high capacity, and is suitable for mounting on a vehicle as an auxiliary battery. However, the type of battery is not limited to this, for example, an alkaline battery. Also good. Among air batteries, a salt water battery using a sodium chloride aqueous solution as an electrolyte is preferable from the viewpoint of easy handling. Further, when the liquid is a solvent, although not shown, a supporting salt for preparing the electrolytic solution may be held in advance in an electrolytic solution storage unit described later in detail, and is not shown. However, it is good also as a structure which has another storage container which stores support salt.

  The battery 20 is formed by supplying either one or both of an electrolyte and a solvent for preparing the electrolyte to the electrolyte container, and a predetermined flow path forming structure member to be described later in detail. If it has, it will not specifically limit. The battery may have, for example, a so-called single cell structure in which one positive electrode and one negative electrode face each other, and one negative electrode is disposed between two positive electrodes, and the positive electrode and the negative electrode It may have a so-called bicell structure having a structure in which and are opposed to each other.

  Here, some examples of the battery will be described.

  3A to 3C are cross-sectional views schematically showing batteries according to first to third examples. Specifically, FIG. 3A is a schematic cross-sectional view along the line ZZ of the battery shown in FIG. 3B and 3C are schematic cross-sectional views along a line at the same position as the ZZ line shown in FIG. As shown in FIGS. 3A to 3C, the battery (20, 20A, 20B) includes a frame member 21C, and a positive electrode 21A and a negative electrode 21B disposed on the back side and the front side of the frame member 21C. It has. In addition, the site | part enclosed with the broken line X in a figure shows the electrode opposing part to which the positive electrode 21A and the negative electrode 21B (electrode) are facing. The positive electrode 21A and the negative electrode 21B have a structure facing each other through an electrolyte solution containing portion 21a surrounded by the positive electrode 21A, the negative electrode 21B, and the frame member 21C. Moreover, the electrolyte solution inflow part 21b and the electrolyte solution discharge part 22c are connected to the electrolyte solution accommodating part 21a.

  And as shown to FIG. 3 (A), in the battery 20 of the 1st example, nothing is provided in the electrolyte solution accommodating part 21a. In other words, this is an example outside the present invention. On the other hand, as shown in FIGS. 3B and 3C, in the batteries 20A and 20B of the second example and the third example, which are examples belonging to the scope of the present invention, the electrolyte inflow in the electrolyte container 21a. The electrolyte flow direction between the electrolyte solution inflow portion 21b and the electrolyte solution discharge portion 21c is arranged between the portion 21b and the electrolyte solution discharge portion 21c. A flow path forming structural member 22 that changes in a different direction is provided. Here, the flow path forming structural member 22 is not particularly limited. For example, the flow path forming structural member has a bias suppressing effect for suppressing the uneven flow of the electrolytic solution in the electrolytic solution containing portion 21a. (Hereinafter, sometimes referred to as “bias suppression structure member”) can be mentioned as a preferable one. Further, as a preferable example of the bias suppressing structure member, the width of the flow path formed by the flow path forming structural member is narrower than the electrolyte flow path width of the electrolytic solution storage portion, and is formed by the flow path forming structural member. And the length of the flow path is longer than the length of the flow path connecting the electrolyte inflow portion and the electrolyte discharge portion. Note that the “bias suppression effect” means that the speed of the electrolyte passing through an arbitrary position on the electrode surface is substantially constant.

  In the batteries 20A and 20B of the second example and the third example, the pressure loss in the cell is increased and the uneven flow is suppressed, and the electrolyte solution as shown by the solid arrow F is provided. The flow can be made faster. As a result, there are advantages such that it is easy to remove oxide precipitates that may be generated by the reaction, and output can be improved. In particular, reducing the distance between the electrodes in order to increase the output is preferable from the viewpoints of suppressing flow unevenness, removing oxide precipitates, and preventing a short circuit to be described later. On the other hand, in the battery 20 of the first example, the uneven flow cannot be eliminated, and the flow of the electrolyte cannot be accelerated as indicated by the dotted arrow S.

  In the battery 20A of the second example, the flow path forming structural member 22 is composed of a plurality of columnar members. Even with such a configuration, uneven flow can be suppressed and the flow of the electrolyte can be made faster as indicated by the solid line arrow F. As a result, there are advantages such as easy removal of oxide precipitates and improvement in output. Note that the plurality of columnar members includes a case where all of the plurality of columnar members are connected in part from the viewpoint of facilitating battery fabrication.

  On the other hand, in the battery 20B of the third example, the flow path forming structural member 22 is composed of a plurality of plate-like members. Even with such a configuration, uneven flow can be suppressed and the flow of the electrolyte can be made faster as indicated by the solid line arrow F. As a result, there are advantages such as easy removal of oxide precipitates and improvement in output. In addition, although not illustrated, it cannot be overemphasized that the case where the flow-path formation structural member is comprised from one plate-shaped member is contained in the scope of the present invention. Further, there is an advantage that the flow path forming structure member constituted by the plate-shaped member is easy to form.

  In this example, a plurality of plate-like members which are flow path formation structural members 22 are united with frame member 21C. By adopting such a configuration, it is possible to easily manufacture the flow path forming structural member, to suppress the uneven flow, and to make the flow of the electrolyte faster as indicated by the solid arrow F. As a result, there are advantages such as easy removal of oxide precipitates and improvement in output. Although not shown, it goes without saying that the case where a plurality of plate-like members that are flow path forming structural members are separated from the frame member is included in the scope of the present invention.

  Furthermore, in this example, the flow path forming structural member 22 does not form a portion where the flow of the electrolytic solution branches in the electrolytic solution containing portion 21a. By adopting such a configuration, the pressure loss in the cell is further increased and the uneven flow is suppressed, and the flow of the electrolyte can be further accelerated as indicated by the solid arrow F. As a result, there are advantages such that it is easier to remove the oxide precipitates and the output can be further improved.

  Moreover, in this form, as shown to FIG. 3 (A)-(C), it is suitable that the external shape of the electrolyte solution accommodating part 21a is plate shape. By adopting such a configuration, uneven flow in the thickness direction of the plate-like shape is suppressed, and the flow of the electrolyte can be further accelerated as indicated by the solid line arrow F. In addition, although not illustrated, it cannot be overemphasized that the case where the external shape of electrolyte solution accommodating part is not plate-shaped is contained in the scope of the present invention.

  Furthermore, in this embodiment, in the batteries 20, 20A, 20B, which are assembled batteries in which a plurality of cells as shown in FIGS. 3A to 3C are stacked, a plurality of electrolyte inflow portions 21b and a plurality of electrolysis are provided. It is preferable that either one or both of the liquid discharge portions 21c have a manifold structure extending in the plurality of frame members 21C of the assembled battery. With such a configuration, there is an advantage that the assembled battery can be easily manufactured and the liquid leakage resistance can be easily secured.

  Here, each configuration will be described in more detail.

  For example, when the battery is an air battery, the positive electrode 21A includes an oxygen redox catalyst and a conductive carrier that supports a catalyst that is added as necessary. it can. Although not shown, when the battery is an air battery, the positive electrode is liquid-tight such as a conductive water repellent layer that suppresses or prevents leakage of the electrolyte filled in the electrolyte container on the ventilation space side. It has a ventilation layer. The conductive water-repellent layer has liquid-tightness (for example, water-tightness) with respect to the electrolyte and air permeability, and suppresses or prevents the electrolyte from leaking to the outside, while supplying oxygen to the positive electrode For example, a material composed of a water-repellent porous resin such as a polyolefin resin such as polypropylene or polyethylene or a fluorine resin such as polytetrafluoroethylene and a conductive material such as graphite is preferably used. Can do.

  Examples of the catalyst include metal oxides such as manganese dioxide and tricobalt tetroxide, carbon (C), platinum (Pt), ruthenium (Ru), iridium (Ir), rhodium (Rh), and palladium. (Pd), osmium (Os), tungsten (W), lead (Pb), iron (Fe), chromium (Cr), cobalt (Co), nickel (Ni), manganese (Mn), vanadium (V), molybdenum It can be selected from metals such as (Mo), gallium (Ga), and aluminum (Al), alloys and oxides thereof.

  Further, the shape and size of the catalyst are not particularly limited, and the same shape and size as those of conventionally known catalysts can be adopted. However, the shape of the catalyst is preferably granular.

  Further, the carrier functions as a carrier for supporting the catalyst and as an electron conduction path involved in the transfer of electrons between the catalyst and other members. Any carrier may be used as long as it has a specific surface area for supporting the catalyst component in a desired dispersion state and sufficient electron conductivity, and the main component is preferably carbon. Specific examples of the carrier include carbon particles made of carbon black, activated carbon, coke, natural graphite, artificial graphite and the like.

  Further, the size of the carrier is not particularly limited, and the same size as a conventionally known carrier can be adopted.

  The types of the catalyst and the carrier supporting the catalyst are not limited to those described above, and it goes without saying that conventionally known materials applicable to air batteries can be used as appropriate. Yes.

  In addition, for the negative electrode 21B, for example, a single metal whose standard electrode potential is lower than that of hydrogen or an alloy containing these metals is preferably used. Examples of such a simple metal include zinc (Zn), iron (Fe), aluminum (Al), and magnesium (Mg). Examples of the alloy include those obtained by adding one or more metal elements or non-metal elements to these metal elements. Among them, those using light metals such as magnesium and aluminum are preferable, and those using magnesium are particularly preferable. However, it is not limited to these, For example, the conventionally well-known material applied to an air battery is applicable. Note that when a light metal having a relatively low specific gravity is applied, as will be described in detail later, it is preferable because the oxide precipitates are retained in the upper part of the electrolyte solution storage portion and can be easily recovered. In addition, when magnesium is applied, the amount of oxidized precipitates generated is large, and therefore it is particularly effective to provide a removal section described later in detail.

  Further, the frame member 21C is preferably made of an electrically insulating material such as resin. In addition, since the positive electrode 21A and the negative electrode 21B are opposed to each other so as to be opposed to each other, and the electrolyte solution storage portion 21a is formed between the positive electrode 21A and the negative electrode 21B, the liquid-tight property is obtained. It is preferable that

  Furthermore, since the flow path forming structural member 22 is preferably manufactured integrally with the frame member, it is preferable to apply a material made of the same material as the frame member, but there is no particular limitation. . Moreover, since it is arrange | positioned between a positive electrode and a negative electrode, it is preferable to apply what consists of an electrically insulating material from a viewpoint of a short circuit prevention.

  Next, FIGS. 4A to 4C are cross-sectional views schematically showing batteries according to fourth to sixth examples. Specifically, FIGS. 4A to 4C are schematic cross-sectional views along a line at the same position as the ZZ line shown in FIG. In addition, about the thing equivalent to what was demonstrated in said example, the code | symbol same as them is attached | subjected and description is abbreviate | omitted. As shown in FIGS. 4A to 4C, the batteries (20C, 20D, and 20E) include a frame member 21C, and a positive electrode 21A and a negative electrode 21B that are disposed on the back side and the front side of the frame member 21C. It has. In addition, the site | part enclosed with the broken line X in a figure shows the electrode opposing part to which the positive electrode 21A and the negative electrode 21B (electrode) are facing. On the other hand, a part surrounded by a broken line Y in the figure shows an electrode non-facing portion where the positive electrode 21A and the negative electrode 21B (electrode) are not opposed. The positive electrode 21A and the negative electrode 21B have a structure facing each other through an electrolyte solution containing portion 21a surrounded by the positive electrode 21A, the negative electrode 21B, and the frame member 21C. Moreover, the electrolyte solution inflow part 21b and the electrolyte solution discharge part 22c are connected to the electrolyte solution accommodating part 21a.

  And as shown to FIG. 4 (A), in the battery 20C of a 4th example, nothing is provided in the electrolyte solution accommodating part 21a. In other words, this is an example outside the present invention. On the other hand, as shown in FIGS. 4B and 4C, in the batteries 20D and 20E of the fifth example and the sixth example, which are examples belonging to the scope of the present invention, the electrolyte inflow in the electrolyte container 21a. A predetermined flow path forming structural member 22 is provided between the portion 21b and the electrolyte solution discharge portion 21c.

  In the batteries 20D and 20E of the fifth example and the sixth example, the flow deviation is suppressed and the flow of the electrolyte can be made faster as indicated by the solid line arrow F because of the configuration as described above. it can. As a result, there are advantages such as easy removal of oxide precipitates and improvement in output. On the other hand, in the battery 20C of the fourth example, the uneven flow cannot be eliminated, and the flow of the electrolyte cannot be accelerated as indicated by the dotted arrow S.

  In the battery 20D of the fifth example, the flow path forming structural member 22 is composed of a plurality of columnar members. Even with such a configuration, uneven flow can be suppressed and the flow of the electrolyte can be made faster as indicated by the solid line arrow F. As a result, there are advantages such as easy removal of oxide precipitates and improvement in output. Note that the plurality of columnar members includes a case where all of the plurality of columnar members are connected in part from the viewpoint of facilitating battery fabrication.

  On the other hand, in the battery 20E of the sixth example, the flow path forming structural member 22 is composed of a plurality of plate-like members. Even with such a configuration, uneven flow can be suppressed and the flow of the electrolyte can be made faster as indicated by the solid line arrow F. As a result, there are advantages such as easy removal of oxide precipitates and improvement in output. In addition, although not illustrated, it cannot be overemphasized that the case where the flow-path formation structural member is comprised from one plate-shaped member is contained in the scope of the present invention.

  In this example, a plurality of plate-like members which are flow path formation structural members 22 are united with frame member 21C. By adopting such a configuration, it is possible to easily manufacture the flow path forming structural member, to suppress the uneven flow, and to make the flow of the electrolyte faster as indicated by the solid arrow F. As a result, there are advantages such as easy removal of oxide precipitates and improvement in output. Although not shown, it goes without saying that the case where a plurality of plate-like members that are flow path forming structural members are separated from the frame member is included in the scope of the present invention.

  Furthermore, in this example, the flow path forming structural member 22 does not form a portion where the flow of the electrolytic solution branches in the electrolytic solution containing portion 21a. By adopting such a configuration, uneven flow can be suppressed and the flow of the electrolyte can be further accelerated as indicated by a solid arrow F. As a result, there are advantages such as easy removal of oxide precipitates and improvement in output.

  Moreover, in this form, as shown to FIG. 4 (A)-(C), it is suitable that the external shape of the electrolyte solution accommodating part 21a is plate shape. By adopting such a configuration, uneven flow in the thickness direction of the plate-like shape is suppressed, and the flow of the electrolyte can be further accelerated as indicated by the solid line arrow F. In addition, although not illustrated, it cannot be overemphasized that the case where the external shape of electrolyte solution accommodating part is not plate-shaped is contained in the scope of the present invention.

  Furthermore, in this embodiment, in the batteries 20C, 20D, and 20E that are assembled batteries in which a plurality of cells as shown in FIGS. 4A to 4C are stacked, a plurality of electrolyte inflow portions 21b and a plurality of electrolysis are provided. It is preferable that either one or both of the liquid discharge portions 21c have a manifold structure extending in the plurality of frame members 21C of the assembled battery. With such a configuration, there is an advantage that the assembled battery can be easily manufactured and the liquid leakage resistance can be easily secured.

  Moreover, in this embodiment, as shown in FIGS. 4A to 4C, the electrode non-opposing portion Y described above is provided on the upper part of the electrolytic solution housing portion. Such an electrode non-facing portion Y can function as a removing portion that removes oxide precipitates that can be generated in the electrolytic solution housing portion. In other words, the oxide precipitates are likely to rise due to heat generated during discharge and adhesion of hydrogen, so that the raised oxide precipitates accumulate on the upper part of the electrolytic solution storage part, but an electrode non-opposing part is provided on the upper part. Thus, the influence can be reduced and the performance of the battery can be stabilized.

  Since the drive unit is provided in the battery control unit as in the battery system of this embodiment, in the cartridge type unit including the battery, for example, there is no need to provide components such as a motor, and the number of components can be reduced. The weight of the battery system itself can be reduced, and the cost of the battery system itself can be easily replaced. Therefore, the durability of the battery system itself can be improved. In addition, there is an advantage that liquid can be freely supplied / recovered by the electrolytic solution circulation section via the liquid flow path connected to the bottom of the battery, and the start / stop control is facilitated.

  In this embodiment, the case where an assembled battery made up of a plurality of cells is used as the battery has been described as an example, but the case where a single battery made up of one cell is used as the battery is included in the scope of the present invention. Needless to say.

  Further, in this embodiment, the case where the motor as the driving unit of the electrolyte circulation unit is not provided in the cartridge type unit has been described as an example. However, the motor may be provided in the cartridge type unit and no other parts may be provided. Needless to say, it is included in the scope of the present invention. Of the components applied to the electrolytic solution circulation unit, the motor as the drive unit is relatively large in volume and weight and high in cost, and thus is preferably removed from the cartridge type unit.

  Furthermore, in the present embodiment, the case where the liquid flow path is connected to the bottom of the battery and the bottom of the storage container has been described as an example, but if the battery and the storage container are connected by the liquid flow path, Needless to say, it is included in the scope of the present invention. In addition, it can be made to function as a removal part which removes the oxidation deposit which may be produced | generated in an electrolyte solution accommodating part by connecting the liquid flow path to the bottom part of a battery. In other words, the oxide precipitates are likely to rise due to heat generation during discharge and adhesion of hydrogen, and therefore, removal of the oxide precipitates is facilitated by supplying a liquid from the bottom. It is also effective for removing hydrogen generated at the initial stage of liquid supply. As a result, output can be improved. Further, since the liquid flow path is connected to the bottom of the storage container, it is possible to prevent air in the storage container from entering when supplying the liquid from the storage container to the battery.

  Further, in this embodiment, the case where the liquid channel is included in the storage container and the battery, in other words, the case where the liquid channel is formed inside the cartridge type unit has been described as an example. It goes without saying that the container is included in the scope of the present invention as long as it is connected to the container by a liquid channel. In addition, there is an advantage that liquid resistance is easily ensured by adopting a configuration in which the liquid flow path is included in the storage container and the battery, in other words, the liquid flow path is formed inside the cartridge type unit.

  Furthermore, in the present embodiment, the case where the liquid flow path is connected to the upper part of the battery, in other words, the upper part of the electrolyte container and the upper part of the storage container has been described as an example. If it is connected by a plurality of liquid channels, the electrolyte solution can be circulated. In addition, since the liquid flow path is connected to the upper part of the battery, in other words, the upper part of the electrolytic solution storage part, it is possible to collect the oxide deposits that may stay in the upper part of the electrolytic solution storage part by overflow. . Further, the liquid level in the electrolytic solution storage part can be maintained at a certain height or less without particularly controlling. On the other hand, since the liquid flow path is connected to the upper portion of the storage container, air can be released even if the internal pressure of the storage container is increased, thereby enabling smooth circulation. On the other hand, when the liquid flow channel on the side corresponding to the liquid flow channel 32 is connected to the bottom of the battery, for example, when the liquid flow channel 32 has the same length as the filter 61, the oxidized precipitate that is precipitated is efficiently Can be removed well.

  Further, in the present embodiment, the case where the liquid flow path and the storage container have a filter inside them is described as an example, but the liquid flow path and the storage container do not have a filter inside. Needless to say, a case where the filter is provided inside one of the liquid flow path and the storage container is included in the scope of the present invention. In addition, by having a filter inside one or both of the liquid flow path and the storage container, all or a part of the oxide precipitates can be removed by the liquid flow path or the storage container. Moreover, removal capability can also be improved by providing a filter in the storage container with relatively large volume.

  Furthermore, in this embodiment, it is preferable that the liquid exists only in the storage container when storing the battery. By setting it as such a structure, it can preserve | save for a long term, suppressing deterioration of a battery.

<Second form>
Next, the battery system according to the second embodiment will be described in detail with reference to the drawings. In addition, about the thing equivalent to what was demonstrated in said form, the code | symbol same as them is attached | subjected and description is abbreviate | omitted. FIG. 5 is a schematic configuration diagram schematically showing the battery system according to the second embodiment. Moreover, FIG. 6 is explanatory drawing which shows typically the operation | movement at the time of performing supply, collection | recovery, or circulation of the liquid in the battery system which concerns on a 2nd form.

  As shown in FIGS. 5 and 6, the battery system 1 </ b> A of the present embodiment includes a cartridge type unit A, a battery control unit B, and an electrolyte circulation unit C.

  The cartridge type unit A includes the storage container 10 and a battery 20 that is an assembled battery including a plurality of cells, either integrally or separately, and either one or both of the storage container 10 and the battery 20 are connected to the storage container 10. A plurality of liquid flow paths 30 and 32 that connect the battery 20 are provided. In addition, as the battery 20, a battery having each of the above-described examples or a manifold structure can be applied. In this embodiment, a pump head 31 is connected to the liquid flow path 30. Furthermore, in this embodiment, the liquid flow path 30 is connected to the bottom of the battery 20 and the bottom of the storage container 10. In the present embodiment, the liquid channel 32 is connected to the upper part of the battery 20 and the upper part of the storage container 10. Furthermore, in this embodiment, the liquid flow paths 30 and 32 are enclosed in the storage container 10 and the battery 20, in other words, the liquid flow paths 30 and 32 are formed inside the cartridge type unit A. Moreover, in this form, the liquid flow path 32 and the storage container 10 have the filters 61 and 62 inside them.

  Further, the battery control section B includes a mounting section 40 that can mount and demount the cartridge type unit A. In the present embodiment, the battery control unit B includes a motor 51 as the drive unit 50 of the electrolyte circulation unit C. The motor 51 has a gear 53.

  Further, the electrolytic solution circulation section C circulates the liquid between the storage container 10 and the battery 20 via the liquid flow paths 30 and 32. In the present embodiment, the electrolyte circulation part C includes a motor 51, a pump head 31 driven by the motor 51, and liquid channels 30 and 32. Specifically, as shown in FIG. 6, when the cartridge type unit A is mounted on the mounting portion 40, the pump head 31 is driven by the motor 51 via the gear 53, and the pump head 31 Is driven by the motor 51 via the gear 53, whereby the liquid is supplied from the storage container 10 to the battery 20 via the liquid flow path 30. In addition, when the liquid level of the electrolytic solution in the battery 20 reaches the upper end of the liquid channel 32, the liquid is recovered from the battery 20 to the storage container 10 through the liquid channel 32, and electrolysis is performed as a whole. Liquid circulation takes place. In the present embodiment, the pump head 31 is driven by the motor 51 via the gear 53, and the pump head 31 is driven reversely by the motor 51 via the gear 53, so that the liquid flow path 30 is changed. Thus, the liquid is collected from the battery 20 to the storage container 10, the liquid is supplied from the storage container 10 to the battery 20 through the liquid flow path 32, and the electrolyte is circulated as a whole. It can also be configured.

  Since the drive unit is provided in the battery control unit as in the battery system of this embodiment, in the cartridge type unit including the battery, for example, there is no need to provide components such as a motor, and the number of components can be reduced. The weight of the battery system itself can be reduced, and the cost of the battery system itself can be easily replaced. Therefore, the durability of the battery system itself can be improved. In addition, there is an advantage that liquid can be freely supplied / recovered by the electrolytic solution circulation section via the liquid flow path connected to the bottom of the battery, and the start / stop control is facilitated. Needless to say, in the battery system, the electrolytic solution can be circulated while efficiently removing the oxide deposits, and as a result, the output can be improved.

  In this embodiment, the case where an assembled battery made up of a plurality of cells is used as the battery has been described as an example, but the case where a single battery made up of one cell is used as the battery is included in the scope of the present invention. Needless to say.

  Further, in this embodiment, the case where the motor as the drive unit of the electrolyte circulation unit is not provided from the cartridge type unit has been described as an example. However, the motor may be provided in the cartridge type unit and no other parts may be provided. Needless to say, it is included in the scope of the present invention. Of the components applied to the electrolytic solution circulation unit, the motor as the drive unit is relatively large in volume and weight and high in cost, and thus is preferably removed from the cartridge type unit.

  Furthermore, in the present embodiment, the case where the liquid flow path is connected to the bottom of the battery and the bottom of the storage container has been described as an example, but if the battery and the storage container are connected by the liquid flow path, Needless to say, it is included in the scope of the present invention. In addition, it can be made to function as a removal part which removes the oxidation deposit which may be produced | generated in an electrolyte solution accommodating part by connecting the liquid flow path to the bottom part of a battery. In other words, the oxide precipitates are likely to rise due to heat generation during discharge and adhesion of hydrogen, and therefore, removal of the oxide precipitates is facilitated by supplying a liquid from the bottom. It is also effective for removing hydrogen generated at the initial stage of liquid supply. As a result, output can be improved. Further, since the liquid flow path is connected to the bottom of the storage container, it is possible to prevent air in the storage container from entering when supplying the liquid from the storage container to the battery.

  Further, in this embodiment, the case where the liquid channel is included in the storage container and the battery, in other words, the case where the liquid channel is formed inside the cartridge type unit has been described as an example. It goes without saying that the container is included in the scope of the present invention as long as it is connected to the container by a liquid channel. In addition, there is an advantage that liquid resistance is easily ensured by adopting a configuration in which the liquid flow path is included in the storage container and the battery, in other words, the liquid flow path is formed inside the cartridge type unit.

  Furthermore, in the present embodiment, the case where the liquid flow path is connected to the upper part of the battery, in other words, the upper part of the electrolyte container and the upper part of the storage container has been described as an example. If it is connected by a plurality of liquid channels, the electrolyte solution can be circulated. In addition, since the liquid flow path is connected to the upper part of the battery, in other words, the upper part of the electrolytic solution storage part, it is possible to collect the oxide deposits that may stay in the upper part of the electrolytic solution storage part by overflow. . Further, the liquid level in the electrolytic solution storage part can be maintained at a certain height or less without particularly controlling. On the other hand, since the liquid flow path is connected to the upper portion of the storage container, air can be released even if the internal pressure of the storage container is increased, thereby enabling smooth circulation. On the other hand, when the liquid flow path on the side corresponding to the liquid flow path 32 is connected to the bottom of the battery, for example, when the liquid flow path 32 is about the same length as the filter 61, the precipitated oxide precipitates are precipitated. It can be removed efficiently.

  Further, in the present embodiment, the case where the liquid flow path and the storage container have a filter inside them is described as an example, but the liquid flow path and the storage container do not have a filter inside. Needless to say, a case where the filter is provided inside one of the liquid flow path and the storage container is included in the scope of the present invention. In addition, by having a filter inside one or both of the liquid flow path and the storage container, all or a part of the oxide precipitates can be removed by the liquid flow path or the storage container. Moreover, removal capability can also be improved by providing a filter in the storage container with relatively large volume.

  Furthermore, in this embodiment, it is preferable that the liquid exists only in the storage container when storing the battery. By setting it as such a structure, it can preserve | save for a long term, suppressing deterioration of a battery.

<Third embodiment>
Next, a battery system according to a third embodiment will be described in detail with reference to the drawings. In addition, about the thing equivalent to what was demonstrated in said form, the code | symbol same as them is attached | subjected and description is abbreviate | omitted. FIG. 7 is a schematic configuration diagram schematically showing the battery system according to the third embodiment. FIGS. 8A and 8B are explanatory views schematically showing an operation when supplying, collecting, or circulating a liquid in the battery system according to the third embodiment.

  As shown in FIGS. 7 and 8, the battery system 1 </ b> B of the present embodiment includes a cartridge type unit A, a battery control unit B, and an electrolyte solution circulation unit C.

  The cartridge type unit A includes the storage container 10 and a battery 20 that is an assembled battery including a plurality of cells, either integrally or separately, and either one or both of the storage container 10 and the battery 20 are connected to the storage container 10. A plurality of liquid flow paths 30 and 32 that connect the battery 20 are provided. In addition, as the battery 20, a battery having each of the above-described examples or a manifold structure can be applied. In the present embodiment, the liquid flow path 30 is connected to the bottom of the battery 20 and the bottom of the storage container 10. Furthermore, in this embodiment, the liquid flow path 32 is connected to the upper part of the battery 20 and the upper part of the storage container 10. In this embodiment, the liquid flow paths 30 and 32 are enclosed in the storage container 10 and the battery 20, in other words, the liquid flow paths 30 and 32 are formed inside the cartridge type unit A. Furthermore, in this embodiment, the liquid flow path 32 and the storage container 10 have filters 61 and 62 therein.

  Further, the battery control section B includes a mounting section 40 that can mount and demount the cartridge type unit A. In this embodiment, the battery control unit B includes an actuator 54A as the drive unit 50 of the electrolyte circulation unit C. The actuator 54A has a plate member 54B.

  Further, the electrolytic solution circulation section C circulates the liquid between the storage container 10 and the battery 20 via the liquid flow paths 30 and 32. In the present embodiment, the electrolytic solution circulation section C includes an actuator 54A, a plate member 54B, and liquid flow paths 30 and 32. Specifically, as indicated by an arrow X in FIG. 8A, the actuator 54A extends upward, whereby the storage container 10 is compressed and deformed, and the storage container 10 is separated from the storage container 10 via the liquid channel 30. The liquid is supplied to the battery 20. In addition, the liquid flow paths 30 and 32 are provided with a valve (not shown) that controls the flow of the electrolytic solution, and the two valves are alternately opened and closed according to the timing when the actuator is expanded and contracted. Further, when the liquid level of the electrolytic solution in the battery 20 reaches the upper end of the liquid flow path 32, the actuator 54A contracts downward as indicated by an arrow Y in FIG. Is expanded and deformed, and the liquid is recovered from the battery 20 to the storage container 10 via the liquid flow path 32. In this way, the electrolyte is circulated as a whole. In this embodiment, the actuator 54A as the drive unit 50 may be driven in reverse.

  Since the drive unit is provided in the battery control unit as in the battery system of this embodiment, in the cartridge type unit including the battery, for example, there is no need to provide components such as an actuator, and the number of components can be reduced. The weight of the battery system itself can be reduced, and the cost of the battery system itself can be easily replaced. Therefore, the durability of the battery system itself can be improved. In addition, there is an advantage that liquid can be freely supplied / recovered by the electrolytic solution circulation section via the liquid flow path connected to the bottom of the battery, and the start / stop control is facilitated. Needless to say, in the battery system, the electrolytic solution can be circulated while efficiently removing the oxide deposits, and as a result, the output can be improved.

  In this embodiment, the case where an assembled battery made up of a plurality of cells is used as the battery has been described as an example, but the case where a single battery made up of one cell is used as the battery is included in the scope of the present invention. Needless to say.

  Further, in this embodiment, the case where the actuator as the driving unit of the electrolyte circulation unit is not provided in the cartridge type unit has been described as an example. However, the actuator may be provided in the cartridge type unit and no other parts may be provided. Needless to say, it is included in the scope of the present invention. Of the components applied to the electrolytic solution circulation unit, the actuator as the drive unit is relatively expensive, and therefore it is preferable to remove it from the cartridge type unit.

  Furthermore, in the present embodiment, the case where the liquid flow path is connected to the bottom of the battery and the bottom of the storage container has been described as an example, but if the battery and the storage container are connected by the liquid flow path, Needless to say, it is included in the scope of the present invention. In addition, it can be made to function as a removal part which removes the oxidation deposit which may be produced | generated in an electrolyte solution accommodating part by connecting the liquid flow path to the bottom part of a battery. In other words, the oxide precipitates are likely to rise due to heat generation during discharge and adhesion of hydrogen, and therefore, removal of the oxide precipitates is facilitated by supplying a liquid from the bottom. It is also effective for removing hydrogen generated at the initial stage of liquid supply. As a result, output can be improved. Further, since the liquid flow path is connected to the bottom of the storage container, it is possible to prevent air in the storage container from entering when supplying the liquid from the storage container to the battery.

  Further, in this embodiment, the case where the liquid channel is included in the storage container and the battery, in other words, the case where the liquid channel is formed inside the cartridge type unit has been described as an example. It goes without saying that the container is included in the scope of the present invention as long as it is connected to the container by a liquid channel. In addition, there is an advantage that liquid resistance is easily ensured by adopting a configuration in which the liquid flow path is included in the storage container and the battery, in other words, the liquid flow path is formed inside the cartridge type unit.

  Furthermore, in the present embodiment, the case where the liquid flow path is connected to the upper part of the battery, in other words, the upper part of the electrolyte container and the upper part of the storage container has been described as an example. If it is connected by a plurality of liquid channels, the electrolyte solution can be circulated. In addition, since the liquid flow path is connected to the upper part of the battery, in other words, the upper part of the electrolytic solution storage part, it is possible to collect the oxide deposits that may stay in the upper part of the electrolytic solution storage part by overflow. . Further, the liquid level in the electrolytic solution storage part can be maintained at a certain height or less without particularly controlling. On the other hand, since the liquid flow path is connected to the upper portion of the storage container, air can be released even if the internal pressure of the storage container is increased, thereby enabling smooth circulation. On the other hand, when the liquid flow channel on the side corresponding to the liquid flow channel 32 is connected to the bottom of the battery, for example, when the liquid flow channel 32 has the same length as the filter 61, the oxidized precipitate that is precipitated is efficiently Can be removed well.

  Further, in the present embodiment, the case where the liquid flow path and the storage container have a filter inside them is described as an example, but the liquid flow path and the storage container do not have a filter inside. Needless to say, a case where the filter is provided inside one of the liquid flow path and the storage container is included in the scope of the present invention. In addition, by having a filter inside one or both of the liquid flow path and the storage container, all or a part of the oxide precipitates can be removed by the liquid flow path or the storage container. Moreover, removal capability can also be improved by providing a filter in the storage container with relatively large volume.

  Furthermore, in this embodiment, it is preferable that the liquid exists only in the storage container when storing the battery. By setting it as such a structure, it can preserve | save for a long term, suppressing deterioration of a battery.

<4th form>
Next, a battery system according to a fourth embodiment will be described in detail with reference to the drawings. In addition, about the thing equivalent to what was demonstrated in said form, the code | symbol same as them is attached | subjected and description is abbreviate | omitted. FIG. 9 is a schematic configuration diagram schematically showing the battery system according to the fourth embodiment. Moreover, FIG. 10 is explanatory drawing which shows typically the operation | movement at the time of performing supply, collection | recovery, or circulation of the liquid in the battery system which concerns on a 4th form.

  As shown in FIGS. 9 and 10, the battery system 1 </ b> C of this embodiment includes a cartridge type unit A, a battery control unit B, and an electrolyte circulation unit C.

  The cartridge type unit A includes the storage container 10 and a battery 20 that is an assembled battery including a plurality of cells, either integrally or separately, and either one or both of the storage container 10 and the battery 20 are connected to the storage container 10. A plurality of liquid flow paths 30 and 32 that connect the battery 20 are provided. In addition, as the battery 20, a battery having each of the above-described examples or a manifold structure can be applied. Moreover, in this form, the storage container 10 has 10 A of air pump insertion parts. Furthermore, in this embodiment, the liquid flow path 30 is connected to the bottom of the battery 20 and the bottom of the storage container 10. In the present embodiment, the liquid channel 32 is connected to the upper part of the battery 20 and the upper part of the storage container 10. Furthermore, in this embodiment, the liquid flow paths 30 and 32 are enclosed in the storage container 10 and the battery 20, in other words, the liquid flow paths 30 and 32 are formed inside the cartridge type unit A. Moreover, in this form, the liquid flow path 32 and the storage container 10 have the filters 61 and 62 inside them.

  Further, the battery control section B includes a mounting section 40 that can mount and demount the cartridge type unit A. In this embodiment, the battery control unit B includes an air pump 55A as the drive unit 50 of the electrolyte circulation unit C. The air pump 55A has a connection portion 55B connected to the air pump insertion portion 10a.

  Further, the electrolytic solution circulation section C circulates the liquid between the storage container 10 and the battery 20 via the liquid flow paths 30 and 32. In the present embodiment, the electrolyte circulation part C is composed of the air pump 55A, the connection part 55B, and the liquid flow paths 30 and 32. Specifically, as shown in FIG. 10, when the cartridge type unit A is mounted on the mounting portion 40, the connection portion 55B is inserted into the air pump insertion portion 10a, and the air pump 55A is driven to store the cartridge type unit A. When the internal pressure of the container 10 is increased by the air pump 55 </ b> A, the liquid is supplied from the storage container 10 to the battery 20 through the liquid channel 30. In addition, the liquid flow paths 30 and 32 are provided with a valve (not shown) that controls the flow of the electrolytic solution, and the two valves are alternately opened and closed at the timing when the air pump is driven and the internal pressure of the storage container is increased. When the supply of liquid from the storage container 10 to the battery 20 is performed, the valve of the liquid channel 30 is in an open state and the valve of the liquid channel 32 is in a closed state. When the electrolyte level in the battery 20 reaches the upper end of the liquid channel 32, the air pump 55A is stopped, the valve of the liquid channel 30 is closed, and the valve of the liquid channel 32 is Since the storage container 10 is in the open state, the internal pressure of the storage container 10 is reduced, and the liquid is recovered from the battery 20 to the storage container 10 via the liquid flow path 32. In this way, the electrolyte is circulated as a whole. In the present embodiment, the air pump 55A as the drive unit 50 may be driven in reverse.

  And by providing a drive part in a battery control part like the battery system of this form, in a cartridge type unit containing a battery, for example, it is not necessary to provide parts, such as an air pump, and can reduce the number of parts, The size, weight, and cost can be reduced, and the structure that allows easy replacement of the part that impedes the durability improvement can be easily replaced. Therefore, the durability of the battery system itself can be improved. In addition, there is an advantage that the liquid supply unit can freely supply and recover the liquid via the liquid flow path connected to the bottom of the battery, and the start / stop control is facilitated. Needless to say, in the battery system, the electrolytic solution can be circulated while efficiently removing the oxide deposits, and as a result, the output can be improved.

  In this embodiment, the case where an assembled battery made up of a plurality of cells is used as the battery has been described as an example, but the case where a single battery made up of one cell is used as the battery is included in the scope of the present invention. Needless to say.

  Further, in the present embodiment, the case where the air pump as the drive unit of the electrolyte circulation unit is not provided in the cartridge type unit has been described as an example, but the air pump is provided in the cartridge type unit and no other parts are provided. It goes without saying that cases are included in the scope of the present invention. Of the components applied to the electrolyte circulation part, the air pump as the drive part is relatively large in volume and weight, and relatively expensive, so it is preferable to remove it from the cartridge type unit. .

  Furthermore, in the present embodiment, the case where the liquid flow path is connected to the bottom of the battery and the bottom of the storage container has been described as an example, but if the battery and the storage container are connected by the liquid flow path, Needless to say, it is included in the scope of the present invention. In addition, it can be made to function as a removal part which removes the oxidation deposit which may be produced | generated in an electrolyte solution accommodating part by connecting the liquid flow path to the bottom part of a battery. In other words, the oxide precipitates are likely to rise due to heat generation during discharge and adhesion of hydrogen, and therefore, removal of the oxide precipitates is facilitated by supplying a liquid from the bottom. It is also effective for removing hydrogen generated at the initial stage of liquid supply. As a result, output can be improved. Further, since the liquid flow path is connected to the bottom of the storage container, it is possible to prevent air in the storage container from entering when supplying the liquid from the storage container to the battery.

  Further, in this embodiment, the case where the liquid channel is included in the storage container and the battery, in other words, the case where the liquid channel is formed inside the cartridge type unit has been described as an example. It goes without saying that the container is included in the scope of the present invention as long as it is connected to the container by a liquid channel. In addition, there is an advantage that liquid resistance is easily ensured by adopting a configuration in which the liquid flow path is included in the storage container and the battery, in other words, the liquid flow path is formed inside the cartridge type unit.

  Furthermore, in the present embodiment, the case where the liquid flow path is connected to the upper part of the battery, in other words, the upper part of the electrolyte container and the upper part of the storage container has been described as an example. If it is connected by a plurality of liquid channels, the electrolyte solution can be circulated. In addition, since the liquid flow path is connected to the upper part of the battery, in other words, the upper part of the electrolytic solution storage part, it is possible to collect the oxide deposits that may stay in the upper part of the electrolytic solution storage part by overflow. . Further, the liquid level in the electrolytic solution storage part can be maintained at a certain height or less without particularly controlling. On the other hand, since the liquid flow path is connected to the upper portion of the storage container, air can be released even if the internal pressure of the storage container is increased, thereby enabling smooth circulation. On the other hand, when the liquid flow channel on the side corresponding to the liquid flow channel 32 is connected to the bottom of the battery, for example, when the liquid flow channel 32 has the same length as the filter 61, the oxidized precipitate that is precipitated is efficiently Can be removed well.

  Further, in the present embodiment, the case where the liquid flow path and the storage container have a filter inside them is described as an example, but the liquid flow path and the storage container do not have a filter inside. Needless to say, a case where the filter is provided inside one of the liquid flow path and the storage container is included in the scope of the present invention. In addition, by having a filter inside one or both of the liquid flow path and the storage container, all or a part of the oxide precipitates can be removed by the liquid flow path or the storage container. Moreover, removal capability can also be improved by providing a filter in the storage container with relatively large volume.

  Furthermore, in this embodiment, it is preferable that the liquid exists only in the storage container when storing the battery. By setting it as such a structure, it can preserve | save for a long term, suppressing deterioration of a battery.

  As mentioned above, although this invention was demonstrated with some forms and examples, this invention is not limited to these, A various deformation | transformation is possible within the range of the summary of this invention.

  For example, the configuration described in each form or example described above is not limited to each form or example, and the configuration of each form is changed, or the configuration of each form is combined with a combination other than each of the above forms. be able to.

DESCRIPTION OF SYMBOLS 1,1A-1C Battery system 10 Storage container 10a Air pump insertion part 20, 20A-20E Battery 21A Positive electrode 21B Negative electrode 21C Frame member 21a Electrolyte accommodating part 21b Electrolyte inflow part 21c Electrolyte discharge part 22 Flow path formation structural member ( Bias suppression structure member)
30, 32 Liquid channel 30A Tube part 31 Pump head 40 Mounting part 50 Drive part 51 Motor 52 Tube pump 52A Rotor 52B Roller 53 Gear 54A Actuator 54B Plate member 55A Air pump 55B Connection part 61, 62 Filter A Cartridge type unit B Battery Control part C Electrolyte circulation part X Electrode facing part Y Electrode non-facing part

Claims (10)

A positive electrode, a negative electrode, and a frame member, wherein the positive electrode and the negative electrode are opposed to each other via an electrolyte solution storage portion surrounded by the positive electrode, the negative electrode, and the frame member, A battery formed by supplying at least one liquid of a solvent for preparing a liquid to the electrolytic solution container;
An electrolyte solution circulation part for circulating the electrolyte solution in the electrolyte solution storage part,
The electrolytic solution is disposed between the electrolytic solution inflow portion and the electrolytic solution discharge portion connected to the electrolytic solution storage portion, and the flow direction of the electrolytic solution in the electrolytic solution storage portion is changed between the electrolytic solution inflow portion and the electrolytic solution. It is provided with a flow path forming structure member that changes in a direction different from the flow direction of the electrolyte solution connecting the discharge part ,
The battery system according to claim 1, wherein the battery has an electrode non-facing portion where the positive electrode and the negative electrode are not opposed to each other above the electrolytic solution housing portion .   2. The battery system according to claim 1, wherein the flow path forming structural member is a flow path forming structural member having a bias suppressing effect that suppresses a bias in the flow of the electrolytic solution in the electrolytic solution housing portion. . The width of the flow path formed by the flow path forming structural member is narrower than the electrolyte flow path width of the electrolyte storage part,
3. The battery system according to claim 2, wherein a length of a flow path formed by the flow path forming structural member is longer than a length of a flow path connecting the electrolyte solution inflow portion and the electrolyte solution discharge portion.   The battery system according to claim 1, wherein the flow path forming structural member is composed of a plurality of columnar members.   The battery system according to any one of claims 1 to 3, wherein the flow path forming structural member is composed of at least one plate-like member.   6. The battery system according to claim 5, wherein the flow path forming structural member does not form a portion where the flow of the electrolytic solution branches in the electrolytic solution housing portion.   The battery system according to claim 1, wherein the flow path forming structural member is integrated with the frame member.   The battery system according to any one of claims 1 to 7, wherein an outer shape of the electrolyte container is a plate shape. The battery is an assembled battery,
9. At least one of a plurality of electrolyte solution inflow portions and a plurality of electrolyte solution discharge portions of the assembled battery has a manifold structure extending in a plurality of frame members of the assembled battery. The battery system according to any one of the items.   The battery system according to claim 1, wherein the battery is an air battery.

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