JP3445147B2 - Collective battery - Google Patents
Collective batteryInfo
- Publication number
- JP3445147B2 JP3445147B2 JP13851298A JP13851298A JP3445147B2 JP 3445147 B2 JP3445147 B2 JP 3445147B2 JP 13851298 A JP13851298 A JP 13851298A JP 13851298 A JP13851298 A JP 13851298A JP 3445147 B2 JP3445147 B2 JP 3445147B2
- Authority
- JP
- Japan
- Prior art keywords
- fixing material
- battery
- binder
- unit cell
- granular
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 56
- 239000011230 binding agent Substances 0.000 claims description 41
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 7
- 239000004327 boric acid Substances 0.000 claims description 7
- BNOODXBBXFZASF-UHFFFAOYSA-N [Na].[S] Chemical compound [Na].[S] BNOODXBBXFZASF-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000009413 insulation Methods 0.000 description 5
- 238000010292 electrical insulation Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 239000011149 active material Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- XAQHXGSHRMHVMU-UHFFFAOYSA-N [S].[S] Chemical compound [S].[S] XAQHXGSHRMHVMU-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229960003010 sodium sulfate Drugs 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】 本発明は、ナトリウム−硫
黄電池の単電池を複数集合させてなる集合電池に関する
ものである。The present invention relates to the sodium - relates assembled battery comprising a by multiple sets single cells of sulfur batteries.
【０００２】[0002]
【従来の技術】 通常、集合電池は、断熱容器内に複数
の単電池を立設集合し、互いに接続して電池モジュール
とする構造を採っている。このような集合電池におい
て、単電池がナトリウム−硫黄電池のように、約３００
℃の高温で運転され、かつ、反応性に富む活物質を内蔵
するものについては、単電池の破損、異常加熱、あるい
は活物質の漏洩のような事態にも対応できるように、断
熱容器内に載置した単電池と断熱容器との間隙部に、例
えば、炭化珪素、アルミナ、ケイ砂の粒状物やセルベン
（磁器碍子の粉砕物）等の耐熱性、耐腐食性及び電気絶
縁性を有する粒状固定材を充填することが行われてい
た。2. Description of the Related Art Generally, an assembled battery has a structure in which a plurality of cells are vertically assembled in a heat insulating container and connected to each other to form a battery module. In such an assembled battery, the unit cell is about 300, like a sodium-sulfur battery.
For those that are operated at a high temperature of ℃ and contain a highly reactive active material, put them inside a heat-insulated container so that they can handle situations such as damage to the cells, abnormal heating, or leakage of the active material. In the gap between the placed single battery and the heat insulating container, for example, particles of silicon carbide, alumina, silica sand, cerben (crushed porcelain insulator), etc., having heat resistance, corrosion resistance, and electrical insulation. The fixing material was filled.
【０００３】 ところで、前記粒状固定材が流動可能な
状態で充填されている場合には、当該集合電池を移送す
る際の振動等によって、電池モジュールを構成する単電
池の相互間に位置ずれが生じる場合があり、この位置ず
れにより電池モジュール上部に配設された電気的接続部
材が断線を起こす等の問題があった。By the way, when the granular fixing material is filled in a fluid state, a positional deviation occurs between the unit cells constituting the battery module due to vibration or the like when the assembled battery is transferred. In some cases, this positional shift causes a problem such as disconnection of the electrical connection member disposed above the battery module.
【０００４】 そこで、このような単電池相互間の位置
ずれを確実に防止するために、前記粒状固定材にバイン
ダを混合して粒状固定材を硬化させる技術が案出され
た。例えば、特公平８−２１４２７号公報には、図３に
示すように、単電池１を載置した断熱容器３内に、断熱
容器３の底面から単電池１の上面近傍まで熱硬化性バイ
ンダを混合した粒状固定材４を充填した集合電池が開示
されている。この集合電池によれば、粒状固定材４を充
填した後に、バインダを熱硬化させることにより、単電
池１、ひいては電池モジュール２全体が粒状固定材４に
より固着され、単電池１相互間の位置ずれが防止され
る。なお、通常は、こうして硬化させた粒状固定材４と
単電池１の上面に、更に硬化させない粒状固定材５を敷
き、耐熱容器３の開口部に蓋体（図示せず）を装着して
密閉する。Therefore, in order to reliably prevent such positional displacement between the unit cells, a technique has been devised in which a binder is mixed with the granular fixing material to cure the granular fixing material. For example, in Japanese Patent Publication No. 8-21427, as shown in FIG. 3, a thermosetting binder is provided in the heat insulating container 3 in which the unit cells 1 are placed from the bottom surface of the heat insulating container 3 to the vicinity of the upper surface of the unit cells 1. An assembled battery filled with the mixed granular fixing material 4 is disclosed. According to this assembled battery, the granular fixing material 4 is filled, and then the binder is thermally cured, so that the unit cells 1, and thus the entire battery module 2 are fixed by the granular fixing material 4, and the positional deviation between the unit cells 1 is caused. Is prevented. In addition, normally, the granular fixing material 4 thus hardened and the granular fixing material 5 which is not further hardened are laid on the upper surfaces of the unit cells 1, and a lid (not shown) is attached to the opening of the heat-resistant container 3 to hermetically seal it. To do.
【０００５】[0005]
【発明が解決しようとする課題】 しかしながら、前記
特公平８−２１４２７号公報記載の集合電池のように、
断熱容器３の底面から単電池１の上面近傍までの間隙部
すべてに高価なバインダを混合した粒状固定材４を用い
ると、集合電池全体の製造コストが上昇するという問題
があった。However, like the battery assembly described in Japanese Patent Publication No. 8-21427,
If the granular fixing material 4 in which an expensive binder is mixed is used in all the gaps from the bottom surface of the heat insulating container 3 to the vicinity of the upper surface of the unit cell 1, there is a problem that the manufacturing cost of the entire assembled battery increases.
【０００６】 本発明は、このような従来技術の問題点
に鑑みてなされたものであり、単電池の立設集合状態を
固定保持し、単電池相互間に位置ずれが生じるおそれを
確実に防止しつつ、バインダを混合した粒状固定材の使
用量を低減して、製造コストを大幅に低下させることが
できる集合電池を提供することを主な目的とする。The present invention has been made in view of the above-mentioned problems of the prior art, and securely holds the standing and assembled state of the unit cells, and reliably prevents the position shift between the unit cells. At the same time, it is a main object to provide an assembled battery in which the amount of the granular fixing material mixed with the binder is reduced and the manufacturing cost can be significantly reduced.
【０００７】[0007]
【課題を解決するための手段】 本発明によれば、複数
のナトリウム−硫黄電池の単電池を立設集合し、互いに
接続してなる電池モジュールと、当該電池モジュールを
収容する断熱容器と、当該断熱容器と前記単電池との間
隙部に充填された粒状固定材とを含んで構成される集合
電池であって、単電池の上端部から、当該単電池の長さ
の１／５〜１／１０下方までの部分に位置する粒状固定
材のみがほう酸を含む無機バインダを混合して硬化させ
たものであることを特徴とする集合電池（第一発明）、
が提供される。According to the present invention, a battery module formed by vertically assembling a plurality of single cells of sodium-sulfur batteries and connected to each other, a heat insulating container for housing the battery module, An assembled battery including a heat insulating container and a granular fixing material filled in a gap between the unit cell, wherein the length of the unit cell is 1/5 to 1/1 / from the upper end of the unit cell. 10. An assembled battery (first invention), characterized in that only the granular fixing material located at the lower part is mixed and hardened with an inorganic binder containing boric acid ,
Will be provided.
【０００８】 また、本発明によれば、複数のナトリウ
ム−硫黄電池の単電池を立設集合し、互いに接続してな
る電池モジュールと、当該電池モジュールを収容する断
熱容器と、当該断熱容器と前記単電池との間隙部に充填
された粒状固定材とを含んで構成される集合電池であっ
て、単電池の上面に、当該単電池の長さの１／５〜１／
１０の高さで充填した粒状固定材のみがほう酸を含む無
機バインダを混合して硬化させたものであることを特徴
とする集合電池（第二発明）、が提供される。 Further, according to the present invention, a plurality of Natriu
A battery module formed by vertically assembling single cells of a sulfur-sulfur battery and connected to each other, a heat insulating container for housing the battery module, and a granular fixing material filled in a gap between the heat insulating container and the single battery. And an upper surface of the unit cell, which is 1/5 to 1/1 / the length of the unit cell.
Only granular fixing material filled at a height of 10 contains no boric acid
Set cell characterized by a mixture of machine binder is obtained by curing (the second invention), it is provided.
【０００９】[0009]
【発明の実施の形態】 第一発明に係る集合電池におい
ては、図１に示すように、断熱容器３とナトリウム−硫
黄電池の単電池１との間隙部に充填された粒状固定材の
うち、単電池１の上端部から、単電池１の長さＨの１／
５〜１／１０下方までの部分に位置する粒状固定材４の
みほう酸を含む無機バインダを混合して硬化させたもの
としている。DETAILED DESCRIPTION OF THE INVENTION In the assembled battery according to the first invention, as shown in FIG. 1, the heat insulating container 3 and sodium - sulfate
Of the granular fixing material filled in the gap between the yellow battery and the unit cell 1, from the upper end of the unit cell 1 to 1 / H of the length H of the unit cell 1.
It is assumed that only the granular fixing material 4 located in the lower part of 5 to 1/10 is mixed and cured with the inorganic binder containing boric acid .
【００１０】 本発明者らの研究により、このように電
池モジュール２を構成する単電池１と断熱容器３との間
隙部の内、単電池１上端部付近の特定高さの位置にのみ
バインダで硬化させた粒状固定材４を用いれば、他の間
隙部に充填された粒状固定材５が硬化されておらず、流
動可能な状態であっても、単電池１の立設集合状態を固
定保持し、単電池１相互間の位置ずれを防止するのに必
要な強度が得られることがわかった。As a result of research conducted by the present inventors, the binder is provided only at a specific height position near the upper end of the unit cell 1 in the gap between the unit cell 1 and the heat insulating container 3 constituting the battery module 2 as described above. If the hardened granular fixing material 4 is used, even if the granular fixing material 5 filled in the other gaps is not hardened and is in a flowable state, the standing assembled state of the unit cells 1 is fixed and held. However, it was found that the strength required to prevent the positional deviation between the unit cells 1 was obtained.
【００１１】 そして、バインダで硬化させた粒状固定
材４の使用を前記特定部分のみに限定することで、高価
なバインダを混合させた粒状固定材の使用量を従来の１
／５〜１／１０程度に低減でき、その結果、電池の製造
コストを大幅に低下させることが可能となった。また、
バインダの使用量を低減した結果、耐熱容器３内の水分
発生率が減少し、電気絶縁性が向上するという効果も発
現した。Then, by limiting the use of the granular fixing material 4 cured with the binder to only the specific portion, the amount of the granular fixing material mixed with the expensive binder can be reduced to the conventional one.
It can be reduced to about / 5 to 1/10, and as a result, the manufacturing cost of the battery can be significantly reduced. Also,
As a result of reducing the amount of the binder used, the rate of water generation in the heat-resistant container 3 was reduced, and the effect of improving the electric insulation was also exhibited.
【００１２】 なお、バインダで硬化させた粒状固定材
４を使用する部分を単電池１の上端部からその下方の特
定の位置までとしたのは、その使用部分をこれよりも断
熱容器３の底部方向へずらした場合には、バインダ固化
時に発生する水分の抜けが悪くなり、電気絶縁性の低下
を招くからである。また、このバインダで硬化させた粒
状固定材４の高さｈを単電池１の長さＨの１／５〜１／
１０としたのは、ｈがＨの１／１０未満では、電池モジ
ュール２を固定するための十分な強度を得ることが困難
となり、一方、ｈがＨの１／５を超えると、本発明の主
目的であるコストダウンの効果と水分の低減効果が減じ
るからである。It should be noted that the reason why the portion where the granular fixing material 4 hardened by the binder is used is set from the upper end portion of the unit cell 1 to a specific position thereunder is that the used portion is located below the bottom portion of the heat insulating container 3. This is because, when the binder is shifted in the direction, the loss of water generated when the binder is solidified is deteriorated and the electrical insulation is deteriorated. In addition, the height h of the granular fixing material 4 cured with this binder is 1/5 to 1 / the length H of the unit cell 1.
The reason for setting 10 is that if h is less than 1/10 of H, it becomes difficult to obtain sufficient strength for fixing the battery module 2, while if h exceeds 1/5 of H, the invention This is because the cost reduction effect and the moisture reduction effect, which are the main purposes, are reduced.
【００１３】 第一発明の集合電池を作製するにあたっ
ては、電池モジュール２を断熱容器３に収容した後、ま
ず、断熱容器３の底部から、単電池１の上端より単電池
１の長さＨの１／５〜１／１０下方の位置までの間隙部
にバインダを含まない粒状固定材５を充填する。そし
て、その上の間隙部に単電池１の上端部までバインダを
混合した粒状固定材４を充填し、加熱等により硬化さ
せ、単電池を立設集合状態に固定保持する。なお、通常
は、こうして硬化させた粒状固定材４と単電池１の上面
に、更に硬化させない粒状固定材５を敷き、耐熱容器３
の開口部に蓋体（図示せず）を装着して密閉する。In manufacturing the assembled battery of the first invention, after housing the battery module 2 in the heat insulating container 3, first, from the bottom of the heat insulating container 3 to the length H of the single battery 1 from the upper end of the single battery 1. The gap between 1/5 and 1/10 below is filled with the binder-free granular fixing material 5. The granular fixing material 4 mixed with a binder is filled in the space above it up to the upper end portion of the unit cell 1 and is cured by heating or the like to fix and hold the unit cell in the standing assembly state. In addition, normally, the granular fixing material 4 thus cured and the granular fixing material 5 which is not further cured are laid on the upper surface of the unit cell 1 to form the heat-resistant container 3.
A lid (not shown) is attached to the opening of and sealed.
【００１４】 次に、第二発明について説明する。第二
発明に係る集合電池においては、図２に示すように、断
熱容器３とナトリウム−硫黄電池の単電池１との間隙部
に充填された粒状固定材のうち、単電池１の上面に、単
電池１の長さＨの１／５〜１／１０の高さ（厚さ）ｈで
充填した粒状固定材４のみほう酸を含む無機バインダを
混合して硬化させたものとしている。Next, the second invention will be described. In the assembled battery according to the second invention, as shown in FIG. 2, among the granular fixing materials filled in the gap between the heat insulating container 3 and the unit cell 1 of the sodium-sulfur battery, on the upper surface of the unit cell 1, It is assumed that only the granular fixing material 4 filled with the height (thickness) h of 1/5 to 1/10 of the length H of the unit cell 1 is mixed and cured with the inorganic binder containing boric acid .
【００１５】 本発明者らの研究により、このように電
池モジュール２を構成する単電池１と断熱容器３との間
隙部の内、単電池１上面にのみバインダで硬化させた粒
状固定材４を用いれば、他の間隙部に充填された粒状固
定材５が硬化されておらず、流動可能な状態であって
も、単電池１の立設集合状態を固定保持し、単電池１相
互間の位置ずれを防止するのに必要な強度が得られるこ
とがわかった。As a result of the research conducted by the present inventors, the granular fixing material 4 cured with the binder only on the upper surface of the single cell 1 in the gap between the single cell 1 and the heat insulating container 3 which constitute the battery module 2 as described above. If it is used, even if the granular fixing material 5 filled in the other gaps is not hardened and is in a fluid state, the standing and assembled state of the unit cells 1 is fixedly held, and the unit cells 1 are connected to each other. It was found that the strength required to prevent misalignment was obtained.
【００１６】 そして、バインダで硬化させた粒状固定
材４の使用を前記単電池１の上面部分のみに限定するこ
とで、高価なバインダを混合させた粒状固定材の使用量
を従来の１／２程度に低減でき、その結果、電池の製造
コストを大幅に低下させることが可能となった。また、
バインダの使用量を低減した結果、耐熱容器３内の水分
発生率が減少し、電気絶縁性が向上するという効果も発
現した。By limiting the use of the binder-cured granular fixing material 4 only to the upper surface portion of the unit cell 1, the amount of the granular fixing material mixed with the expensive binder can be reduced to half the conventional amount. As a result, the manufacturing cost of the battery can be significantly reduced. Also,
As a result of reducing the amount of the binder used, the rate of water generation in the heat-resistant container 3 was reduced, and the effect of improving the electric insulation was also exhibited.
【００１７】 このバインダで硬化させた粒状固定材４
の高さ（厚さ）ｈを単電池１の長さＨの１／５〜１／１
０としたのは、前記第一発明の場合と同様、ｈがＨの１
／１０未満では、電池モジュール２を固定するための十
分な強度を得ることが困難となり、一方、ｈがＨの１／
５を超えると、本発明の主目的であるコストダウンの効
果と水分の低減効果が減じるからである。Granular fixing material 4 cured with this binder
The height (thickness) h of the cell is 1/5 to 1/1 of the length H of the unit cell 1.
As in the case of the above-mentioned first invention, h is 1 when h is H.
If it is less than / 10, it becomes difficult to obtain sufficient strength for fixing the battery module 2, while h is 1 / H.
If it exceeds 5, the cost reduction effect and the water reduction effect, which are the main objects of the present invention, are reduced.
【００１８】 第二発明の集合電池を作製するにあたっ
ては、電池モジュール２を断熱容器３に収容した後、ま
ず、断熱容器３の底部から、単電池１の上端までの間隙
部にバインダを含まない粒状固定材５を充填する。そし
て、単電池１上面の間隙部に、単電池１の長さＨの１／
５〜１／１０の高さ（厚さ）ｈとなるようにバインダを
混合した粒状固定材４を充填し、加熱等により硬化さ
せ、単電池を立設集合状態に固定保持する。In manufacturing the assembled battery of the second invention, after accommodating the battery module 2 in the heat insulating container 3, first, the binder is not included in the gap portion from the bottom of the heat insulating container 3 to the upper end of the unit cell 1. The granular fixing material 5 is filled. Then, in the gap portion on the upper surface of the unit cell 1, 1 / the length H of the unit cell 1
The granular fixing material 4 mixed with the binder is filled so as to have a height (thickness) h of 5 to 1/10, and the granular fixing material 4 is cured by heating or the like, and the single cells are fixedly held in the standing assembled state.
【００１９】 本発明に用いられる粒状固定材として
は、従来と同様に、炭化珪素、アルミナ、ケイ砂の粒状
物やセルベン（磁器碍子の粉砕物）等の耐熱性、耐腐食
性及び電気絶縁性を有するものが好適に使用できる。ま
た、粒状固定材硬化用のほう酸を含む無機バインダとし
ては、例えば、ほう酸−金属酸化物−無水ほう酸系の無
機バインダが、耐熱性、耐水性及び耐腐食性に優れるた
め好ましい。As the granular fixing material used in the present invention, heat resistance, corrosion resistance, and electrical insulation of particles of silicon carbide, alumina, silica sand, selben (ground material of porcelain insulator), etc. are used as in the conventional case. Those having a can be preferably used. The inorganic binder containing boric acid for curing the granular fixing material may be, for example, a boric acid-metal oxide-boric anhydride-free inorganic binder.
Machine binders are preferable because they are excellent in heat resistance, water resistance and corrosion resistance.
【００２０】[0020]
【実施例】 以下、本発明を実施例に基づいて更に詳細
に説明するが、本発明はこれらの実施例に限定されるも
のではない。EXAMPLES Hereinafter, the present invention will be described in more detail based on examples, but the present invention is not limited to these examples.
【００２１】（実施例）長さが５２９ｍｍで重量が約５
ｋｇである単電池（ナトリウム−硫黄電池）を合計３６
０本立設集合し相互に接続した２５ｋＷクラスの電池モ
ジュールを用いて、図１に示すような本発明に係る集合
電池を作製した。バインダで硬化させた粒状固定材４の
充填位置は、単電池１の上端部からその下方１００ｍｍ
までの位置とし、その他の間隙部には、バインダを含ま
ない粒状固定材５を充填した。粒状固定材には平均粒径
４００μｍの珪砂を使用し、硬化用のバインダには無機
バインダ（ほう酸−金属酸化物−無水ほう酸系）を使用
した（粒状固定材へのバインダの混合率２％）。(Example) A length of 529 mm and a weight of about 5
Total of 36 kg of single cells (sodium-sulfur battery)
An assembled battery according to the present invention as shown in FIG. 1 was produced by using a 25 kW class battery module in which 0 batteries were vertically assembled and connected to each other. The filling position of the granular fixing material 4 cured with the binder is 100 mm below the upper end of the unit cell 1.
And the other gaps were filled with the binder-free granular fixing material 5. Silica sand with an average particle size of 400 μm was used as the granular fixing material, and an inorganic binder (boric acid-metal oxide-boric anhydride type) was used as the curing binder (mixing ratio of the binder to the granular fixing material was 2%). .
【００２２】（比較例）前記実施例と同じ電池モジュー
ルを用いて、図３に示すような従来構造の集合電池を作
製した。粒状固定材及び硬化用のバインダには前記実施
例と同じものを使用し（粒状固定材へのバインダの混合
率２％）、バインダで硬化させた粒状固定材４を断熱容
器３底部から単電池１の上端部まで充填した。(Comparative Example) An assembled battery having a conventional structure as shown in FIG. 3 was produced by using the same battery module as in the above-mentioned example. As the granular fixing material and the binder for curing, the same ones as in the above-mentioned embodiment were used (mixing ratio of the binder to the granular fixing material was 2%), and the granular fixing material 4 cured by the binder was applied from the bottom of the heat insulating container 3 to the unit cell. 1 to the upper end.
【００２３】（評価）前記実施例及び比較例にて作製さ
れた集合電池について、使用した粒状固定材とバインダ
のコスト、電気絶縁性及び固定強度を調べ、その結果を
下表に示した。なお、使用した粒状固定材とバインダの
コストは、比較例品のそれを１００％としたときの相対
的な比率を示した。また、電気絶縁性については、電池
温度１２０〜１７０℃にて、１０００Ｖメガで測定した
ときの抵抗値を求めた。更に、固定強度については、そ
れぞれの集合電池に最大１Ｇの横振動を加えた際の位置
ずれや損傷の有無を調べた。(Evaluation) With respect to the assembled batteries prepared in the above-mentioned Examples and Comparative Examples, the cost, electric insulation and fixing strength of the granular fixing material and binder used were examined, and the results are shown in the table below. In addition, the cost of the granular fixing material and the binder used is shown as a relative ratio when that of the comparative example product is 100%. Regarding the electrical insulation property, the resistance value when measured at 1000 V mega at a battery temperature of 120 to 170 ° C was obtained. Furthermore, regarding the fixed strength, the presence or absence of positional deviation or damage when a maximum of 1 G of lateral vibration was applied to each assembled battery was examined.
【００２４】[0024]
【表１】 [Table 1]
【００２５】[0025]
【発明の効果】 以上説明したように、本発明の集合電
池は、単電池の立設集合状態を固定保持し、単電池相互
間に位置ずれが生じるおそれを確実に防止できるだけで
なく、バインダで硬化させた粒状固定材の使用部分を限
定したことにより、その使用量が従来の１／２〜１／１
０程度に減少し、集合電池の大幅なコストダウンを実現
できる。また、発生水分率が減少するため電気絶縁性が
向上する。As described above, the assembled battery of the present invention can not only securely hold the standing assembled state of the cells and prevent the possibility of misalignment between the cells, but also use the binder. By limiting the use part of the hardened granular fixing material, the usage amount is 1/2 to 1/1 of the conventional amount.
It can be reduced to about 0, and a significant cost reduction of the assembled battery can be realized. In addition, since the generated water content is reduced, the electric insulation is improved.
【図１】 本発明の集合電池の一実施形態を示す側面断
面図である。FIG. 1 is a side sectional view showing an embodiment of an assembled battery of the present invention.
【図２】 本発明の集合電池の他の実施形態を示す側面
断面図である。FIG. 2 is a side sectional view showing another embodiment of the assembled battery of the present invention.
【図３】 従来の集合電池の一例を示す側面断面図であ
る。FIG. 3 is a side sectional view showing an example of a conventional assembled battery.
１…単電池、２…電池モジュール、３…断熱容器、４…
バインダで硬化させた粒状固定材、５…硬化させない
（バインダを含まない）粒状固定材。1 ... Single battery, 2 ... Battery module, 3 ... Insulation container, 4 ...
Granular fixing material hardened with a binder, 5 ... Granular fixing material that is not hardened (not containing a binder).
Claims (2)
立設集合し、互いに接続してなる電池モジュールと、 当該電池モジュールを収容する断熱容器と、 当該断熱容器と前記単電池との間隙部に充填された粒状
固定材とを含んで構成される集合電池であって、 単電池の上端部から、当該単電池の長さの１／５〜１／
１０下方までの部分に位置する粒状固定材のみがほう酸
を含む無機バインダを混合して硬化させたものであるこ
とを特徴とする集合電池。1. A battery module in which a plurality of single cells of sodium-sulfur batteries are vertically assembled and connected to each other, a heat insulating container for housing the battery module, and a gap portion between the heat insulating container and the single battery. An aggregate battery including a granular fixing material filled in, wherein from the upper end of the unit cell, 1/5 to 1 / the length of the unit cell.
Boric acid is the only granular fixing material located up to 10
An assembled battery, which is obtained by mixing and curing an inorganic binder containing a .
立設集合し、互いに接続してなる電池モジュールと、 当該電池モジュールを収容する断熱容器と、 当該断熱容器と前記単電池との間隙部に充填された粒状
固定材とを含んで構成される集合電池であって、 単電池の上面に、当該単電池の長さの１／５〜１／１０
の高さで充填した粒状固定材のみがほう酸を含む無機バ
インダを混合して硬化させたものであることを特徴とす
る集合電池。2. A battery module in which a plurality of sodium-sulfur battery cells are vertically assembled and connected to each other, a heat insulating container for housing the battery module, and a gap portion between the heat insulating container and the single battery. An aggregate battery including a granular fixing material filled in, wherein 1/5 to 1/10 of the length of the unit cell is provided on the upper surface of the unit cell.
The assembled battery characterized in that only the granular fixing material filled at the height is a mixture of inorganic binders containing boric acid and cured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13851298A JP3445147B2 (en) | 1998-05-20 | 1998-05-20 | Collective battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13851298A JP3445147B2 (en) | 1998-05-20 | 1998-05-20 | Collective battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11329487A JPH11329487A (en) | 1999-11-30 |
| JP3445147B2 true JP3445147B2 (en) | 2003-09-08 |
Family
ID=15223889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13851298A Expired - Lifetime JP3445147B2 (en) | 1998-05-20 | 1998-05-20 | Collective battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3445147B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104662698B (en) * | 2012-10-02 | 2017-03-29 | 日本碍子株式会社 | Covering single cells and module cells |
-
1998
- 1998-05-20 JP JP13851298A patent/JP3445147B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11329487A (en) | 1999-11-30 |
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