JPH0445938B2 - - Google Patents
Info
- Publication number
- JPH0445938B2 JPH0445938B2 JP56186289A JP18628981A JPH0445938B2 JP H0445938 B2 JPH0445938 B2 JP H0445938B2 JP 56186289 A JP56186289 A JP 56186289A JP 18628981 A JP18628981 A JP 18628981A JP H0445938 B2 JPH0445938 B2 JP H0445938B2
- Authority
- JP
- Japan
- Prior art keywords
- negative electrode
- electrolyte
- zinc
- battery
- active material
- 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
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M12/00—Hybrid cells; Manufacture thereof
- H01M12/04—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type
- H01M12/06—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type with one metallic and one gaseous electrode
-
- 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
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Hybrid Cells (AREA)
Description
本発明は、ボタン型空気−亜鉛電池の改良にか
かるもので、その目的とするところは、高容量化
をはかると共に保存特性の向上をはかることにあ
る。
即ち、近年人口の高年齢化に伴つて医療機器の
分野が注目されるようになつてきた。その中で難
聴対策として補聴器の需要も急速に伸びてきつつ
あり、これに付ずいして電源電池への要求も高ま
つてきている。
従来より、補聴器の電源としては水銀電池が比
較的よく使用されている。
水銀電池の場合、その利点として(A)容量当りの
コストが安価であること、(B)電圧が安定している
ことなどがあげられる。ところが一方では○イ、補
聴器用電源としては比較的重量が重く、例えば直
径11.6mm×高さ2.5mmのもので約3.0ｇであり、○ロ、
電池容量が少いために約２週間で電池の取り換え
が必要であること。○ハ、水銀電池に用いる正極活
物質自身が公害の原因となりうるなどの問題があ
つた。
これらの諸問題に対応して注目されてきた電池
としてボタン型空気−亜鉛電池があげられる。
この電池の特徴は、正極の活物質として空気中
の酸素を用いるために、負極のための容器内容積
を大きくすることが可能で、電池の高容量化がは
かれる。又比較的放電電圧が安定している。低公
害性でありかつ軽量化がはかれるなどの利点があ
る。
しかしながら、水銀電池のような密封型電池で
は、電池内での内容積変化はなく何ら膨れの問題
は生じない。しかし外部から正極活物質である酸
素を取り入れるタイプの電池では、負極の反応形
態から負極側の体積は10〜20％増大する。従つて
放電が進行するにつれて徐々に体積が膨張して電
解液を遊離させ、更には空気極を圧迫し、ついに
は正極の空気取入孔より漏液する。
本発明は、このようなボタン型空気−亜鉛電池
の保存特性を向上させたものである。以下、本発
明の実施例を直径11.6mm×高さ5.4mm公称容量360
ｍAhのボタン型空気−亜鉛電池を例に説明する。
第１図は本実施例におけるボタン型空気−亜鉛
電池の半断面図を示し、図中１は正極ケース、２
は正極ケースにもうけられた空気取入孔で、直径
0.5mmの孔が２〜４個あけられている。３は空気
室に置かれたセルロース系の多孔性紙で、空気極
より出てきた電解液を吸収させるものである。４
はフツソ樹脂を基材とする撥水膜で漏液を押える
ためのものである。５はニツケル多孔体を集電体
とした空気極、６はセパレータ、７はアルカリ電
解液含液材である。８はナイロン樹脂よりなるガ
スケツトで負極容器９とカツプリングしている。
１０は本発明の特徴とする亜鉛負極である。即ち
８のガスケツトとカツプリングされた負極容器内
容積は230μであり、この中に汞化亜鉛粉末と
アルカリ電解液とが充填されたものである。この
時、負極容器内容積に対する亜鉛粉末量と電解液
量との充填率は75〜85％が好ましい。その理由と
して第２図に示すように、負極容器内への充填率
が75％以下の場合、電池電圧に影響は認められな
いが、負極容器内には、25％以上の空隙、すなわ
ち、空気が包含されることとなり、電池組立封口
時、正極ケースの封口加圧により空気極面側と接
するガスケツトの圧縮が生じ、負極容器内容積の
減少があり、空気の多少、電池外に吐出されるも
のの、空隙により電池を構成する要素の密着性が
悪くなり内部抵抗において著しく高くなると共に
その空気の存在位置、状態においてバラツキも極
めて大きく、特に高率放電に影響を受け易い。ま
た内部抵抗値に関しては充填率75％以上ではほと
んど差は認められなかつた。
一方、充填率が95％以上では電池組立時に直後
漏液が発生する。又、充填率が85％以上の電池で
は直後漏液は認められないが、放電を行ないその
放電深さが70％以上になると、正極板より漏液が
認められる。この度合は負極容器内への負極の充
填率が高くなればなる程大きくなることがわかつ
た。従つて、負極容器内への充填率は75〜85％に
規制し、汞化亜鉛粉末とアルカリ電解液のみを一
定量充填後、空気極等が挿入された正極ケースと
負極容器とを嵌合し、負極容器中に25〜15％の空
隙部を設けた状態にて正極ケースを封口する製造
法が電池特性、耐漏液特性において最も優れてい
るものである。
なお、充填率は次のようにして算出した。
充填率＝亜鉛粉末の体積＋汞化に用いた水銀の体積＋ア
ルカリ電解液量／ガスケツトとカツプリングされた封口
前の負極容器内容積×100
ここで、亜鉛粉末の体積、汞化に用いた水銀の
体積は重量／真密度、アルカリ電解液量の体積は
液重量／液比重の計算式で算出した。
一方、電池の高容量化をはかるためには、限ら
れた負極容器内に負極活物質とアルカリ電解液と
を効率よく充填する必要がる。しかも亜鉛の反応
を考えると量的に多くの電解液を必要とし、亜鉛
と電解液量との体積比は電解液量が大となる。そ
こで、負極容器内で負極活物質と電解液量の体積
比を２元配置による実験を行なつて求めた結果、
負極活物質の占める体積１に対して、電解液は
1.3〜1.7のときが最も適していることを見出し
た。
即ち、その比が1.3以下の場合、電池にして放
電すると、特に高率放電時に放電曲線の平坦性が
なくなる。又、放電末期に電解液律速から２段曲
線となる。
逆に電解液の比率を1.7以上にすると、亜鉛の
充填量が低下すると共に、負極容器内に遊離の電
解液が存在し、正極群と負極群との封口カツプリ
ング時に漏液現象が起こる。又、放電の深さと共
に負極の膨潤によつて電解液が押されて漏液の現
象が認められる。
従つて、ここでは負極容器内容積への充填率を
80％、亜鉛量650mg、負極活物質と電解液との体
積比を１対1.5とし、上記一定量を負極容器に充
填後、空気極等が挿入された正極ケースと負極容
器とを嵌合し、負極容器中に20％の空隙部を設け
た状態にて正極ケースを封口してボタン型空気電
池を製造した。なお、用いた電解液は10Mの
KOHに酸化亜鉛を飽和したものを用いた。
次に本発明の効果について述べる。本発明の構
成〔Ａ〕、即ち負極容器内容積への充填率を80％、
負極活物質と電解液との体積比を１対1.5とした
構成を中心に充填率と体積比を変化させて表−１
のＢ〜Ｉに示す構成と対比させた。
The present invention relates to an improvement of a button-type air-zinc battery, and its purpose is to increase the capacity and improve storage characteristics. That is, as the population ages in recent years, the field of medical devices has been attracting attention. Under these circumstances, the demand for hearing aids as a countermeasure for hearing loss is rapidly increasing, and along with this, the demand for power batteries is also increasing. Conventionally, mercury batteries have been relatively commonly used as a power source for hearing aids. In the case of mercury batteries, their advantages include (A) low cost per capacity, and (B) stable voltage. However, on the other hand, it is relatively heavy as a power source for hearing aids, for example, one with a diameter of 11.6 mm and a height of 2.5 mm weighs about 3.0 g.
Due to the low battery capacity, the battery needs to be replaced every two weeks. ○C) There were problems such as the positive electrode active material used in mercury batteries itself being a source of pollution. A button type air-zinc battery is a battery that has received attention in response to these problems. A feature of this battery is that since oxygen in the air is used as the active material of the positive electrode, it is possible to increase the internal volume of the container for the negative electrode, thereby increasing the capacity of the battery. Also, the discharge voltage is relatively stable. It has the advantages of being low-pollution and lightweight. However, in a sealed battery such as a mercury battery, there is no change in internal volume within the battery, and no problem of swelling occurs. However, in a type of battery that takes in oxygen as the positive electrode active material from the outside, the volume on the negative electrode side increases by 10 to 20% due to the reaction pattern of the negative electrode. Therefore, as the discharge progresses, the volume gradually expands, liberating the electrolyte, and further compressing the air electrode, which eventually leaks from the air intake hole of the positive electrode. The present invention improves the storage characteristics of such a button-type air-zinc battery. Hereinafter, an example of the present invention will be described.
This will be explained using a mAh button type air-zinc battery as an example. Figure 1 shows a half-sectional view of the button-type air-zinc battery in this example, where 1 is a positive electrode case, 2 is a positive electrode case, and 2 is a positive electrode case.
is an air intake hole made in the positive electrode case, with a diameter of
Two to four 0.5 mm holes are drilled. 3 is a cellulose-based porous paper placed in the air chamber, which absorbs the electrolyte coming out from the air electrode. 4
is a water-repellent membrane made of fluorine resin to prevent liquid leakage. 5 is an air electrode using a nickel porous material as a current collector, 6 is a separator, and 7 is an alkaline electrolyte-containing material. Reference numeral 8 is a gasket made of nylon resin, which is coupled to the negative electrode container 9.
10 is a zinc negative electrode that is a feature of the present invention. That is, the internal volume of the negative electrode container coupled with the gasket No. 8 was 230 μm, and the zinc chloride powder and the alkaline electrolyte were filled therein. At this time, the filling ratio of the amount of zinc powder and the amount of electrolyte to the internal volume of the negative electrode container is preferably 75 to 85%. The reason for this is that, as shown in Figure 2, when the filling rate in the negative electrode container is 75% or less, there is no effect on the battery voltage, but if the negative electrode container is filled with 25% or more voids, that is, air When the battery is assembled and sealed, the gasket in contact with the air electrode side is compressed due to the sealing pressure of the positive electrode case, the internal volume of the negative electrode container is reduced, and some air is discharged to the outside of the battery. However, due to the voids, the adhesion of the elements constituting the battery deteriorates, resulting in a significantly high internal resistance, and the position and state of the air also varies greatly, and is particularly susceptible to high rate discharge. Furthermore, with regard to the internal resistance value, almost no difference was observed when the filling rate was 75% or more. On the other hand, if the filling rate is over 95%, leakage will occur immediately after battery assembly. Further, in batteries with a filling rate of 85% or more, no leakage is observed immediately after discharge, but when the discharge depth reaches 70% or more after discharge, leakage is observed from the positive electrode plate. It has been found that this degree increases as the filling rate of the negative electrode into the negative electrode container increases. Therefore, the filling rate into the negative electrode container is regulated to 75 to 85%, and after filling a certain amount of only zinc chloride powder and alkaline electrolyte, the positive electrode case in which the air electrode etc. has been inserted and the negative electrode container are fitted. However, the manufacturing method in which the positive electrode case is sealed with a 25 to 15% void in the negative electrode container is the most excellent in terms of battery characteristics and leakage resistance. Note that the filling rate was calculated as follows. Filling rate = Volume of zinc powder + Volume of mercury used for oxidation + Volume of alkaline electrolyte / Internal volume of negative electrode container before sealing coupled with gasket x 100 Here, volume of zinc powder, mercury used for oxidation The volume of the alkaline electrolyte was calculated by weight/true density, and the volume of alkaline electrolyte was calculated by the formula of liquid weight/liquid specific gravity. On the other hand, in order to increase the capacity of a battery, it is necessary to efficiently fill a limited negative electrode container with a negative electrode active material and an alkaline electrolyte. Moreover, considering the reaction of zinc, a large amount of electrolyte is required, and the volume ratio of zinc to the amount of electrolyte becomes large. Therefore, we performed an experiment using a two-way arrangement to find the volume ratio of the negative electrode active material and electrolyte amount in the negative electrode container.
For every volume occupied by the negative electrode active material, the electrolyte is
We found that 1.3 to 1.7 was most suitable. That is, when the ratio is 1.3 or less, when the battery is discharged, the flatness of the discharge curve disappears, especially during high rate discharge. Moreover, at the end of discharge, a two-stage curve is formed due to the electrolytic solution rate-limiting. On the other hand, when the ratio of the electrolytic solution is 1.7 or more, the amount of zinc filling decreases and free electrolytic solution is present in the negative electrode container, causing a leakage phenomenon when the positive electrode group and the negative electrode group are sealed and coupled. Furthermore, as the depth of discharge increases, the electrolyte is pushed by the swelling of the negative electrode, causing a leakage phenomenon. Therefore, here, the filling rate to the internal volume of the negative electrode container is
80%, the amount of zinc is 650 mg, the volume ratio of the negative electrode active material and the electrolyte is 1:1.5, and after filling the above certain amount into the negative electrode container, the positive electrode case in which the air electrode etc. is inserted and the negative electrode container are fitted. A button-type air cell was manufactured by sealing the positive electrode case with a 20% void in the negative electrode container. The electrolyte used was 10M.
KOH saturated with zinc oxide was used. Next, the effects of the present invention will be described. Configuration [A] of the present invention, that is, the filling rate to the internal volume of the negative electrode container is 80%,
Table 1 shows the results by varying the filling rate and volume ratio, mainly with a configuration in which the volume ratio of the negative electrode active material and electrolyte is 1:1.5.
This was compared with the configurations shown in B to I.
【表】
これらＡ〜Ｉの各構成により第１図の電池を試
作し、特性評価を行なつた。
表−２には電池組立後、45℃の温度で16時間エ
ージングした後の内部抵抗値を示す。[Table] The batteries shown in FIG. 1 were prototyped using each of these configurations A to I, and their characteristics were evaluated. Table 2 shows the internal resistance values after battery assembly and aging at a temperature of 45°C for 16 hours.
【表】
その結果、構成Ｂ、Ｃ、Ｄでの70％の充填率で
は内部抵抗が3.3〜5.08Ωとなり、その値が高いば
かりでなく、そのバラツキも極めて大きいと言え
る。
構成Ｅ、Ａ、Ｆ、Ｇ、Ｈ、Ｉの充填率80％以上
になると、その値は低く、かつそのバラツキも小
さく安定している。
この原因としては、電池を構成する要素の密着
性が充填率によつて影響を受けると考えられる。
表−３に620Ω抵抗によつて放電した時のＡの
構成を100とした容量指数を示す。なお、終止電
圧は1.1Vとした。[Table] As a result, at a filling rate of 70% in configurations B, C, and D, the internal resistance is 3.3 to 5.08Ω, which can be said to be not only high but also extremely variable. When the filling rate of configurations E, A, F, G, H, and I reaches 80% or more, the value is low and the variation thereof is small and stable. The reason for this is thought to be that the adhesion of the elements constituting the battery is affected by the filling rate. Table 3 shows the capacity index when the configuration of A is set as 100 when discharging through a 620Ω resistor. Note that the final voltage was 1.1V.
【表】
この結果、充填率70％の構成Ｂ、Ｃ、Ｄでは内
部抵抗が高いために、構成Ａに比べて低い値しか
得られなかつた。これは充填率が低いために、亜
鉛の絶対量が少ない結果である。
充填率80％以上の構成のＥ、Ａ、Ｆ、Ｇ、Ｈ、
Ｉでは他の充填率に比べて放電容量指数は高い。
その中で負極活物質体積／電解液体積＝１／２の
ものは、充填する絶対亜鉛量が少なく、又１／１
のものは電解液量が少なく、電解液律速反応とな
り平坦電圧が低く、安定した放電曲線が得られな
い。
ところが、充填率90％では他の充填率の様な原
因によるものではなく、他の原因による容量低下
であることが明らかになつた。
即ち、前に述べたように
Zo＋１／２O2→ZnO
の放電反応から、O2が外気から吸収されている
ために放電が進むと共に負極側の体積が膨張する
ために、触媒層が圧迫され、更には触極側の電解
液が押し出され、撥水膜の機能はなく、O2は供
給されないようになる。
その結果、電池は窒息状態になり、負極の電位
によつて正極よりガス発生し、これらによつてつ
いには空気孔より漏液現象をきたすようになる。
この傾向は放電率が高くなる程、大きくなる。
従つて放電容量指数も低くなる。総合的に判断
すると、充填率70％では容量的に問題があり、
又、90％では容量的にも低く、かつ漏液も生じ易
い。
表−４に組立て直後の漏液数（サンプルは各12
個）を示す。[Table] As a result, configurations B, C, and D with a filling rate of 70% had a high internal resistance, so they could only obtain a lower value than configuration A. This is a result of the absolute amount of zinc being small due to the low filling rate. E, A, F, G, H with a filling rate of 80% or more,
At I, the discharge capacity index is higher than at other filling rates.
Among them, those with negative electrode active material volume/electrolyte volume = 1/2 have a small amount of absolute zinc to be filled, and 1/1
In this case, the amount of electrolyte is small, the electrolyte is a rate-limiting reaction, the flat voltage is low, and a stable discharge curve cannot be obtained. However, it has become clear that at a filling rate of 90%, the capacity decrease is not due to causes like other filling rates, but is due to other causes. That is, as mentioned earlier, O 2 is absorbed from the outside air from the discharge reaction of Z o + 1/2O 2 →ZnO, so as the discharge progresses, the volume on the negative electrode side expands, and the catalyst layer is compressed. Furthermore, the electrolyte on the catalyst side is pushed out, the water-repellent film no longer functions, and O 2 is no longer supplied. As a result, the battery becomes suffocated, gas is generated from the positive electrode due to the potential of the negative electrode, and these eventually cause liquid leakage from the air holes.
This tendency becomes larger as the discharge rate becomes higher. Therefore, the discharge capacity index also becomes low. Overall, a filling rate of 70% is problematic in terms of capacity.
Furthermore, at 90%, the capacity is low and leakage is likely to occur. Table 4 shows the number of leaks immediately after assembly (each sample is 12
).
【表】
この結果、充填率90％以上では７〜９個の直後
漏液が認められた。しかも、前述したように
180Ω、300Ωの高率放電になると、直後漏液の起
つていない電池も空気孔からの漏液があつた。
ちなみに水銀電池、銀電池では負極容器充填率
が90％になつても直後漏液、放電途中、放電後で
の漏液は全く認められなく、ボタン型空気−亜鉛
電池特有の問題であり、この傾向は負極容器への
汞化亜鉛粉末及びアルカリ電解液の充填率75〜85
％においては認められなかつた。
又、亜鉛と電解液との体積比１／1.3〜１／1.7
においても同様な結果であつた。
即ち、その比率が１／１では充填する亜鉛量に
比べて電解液量が少ないため亜鉛の反応が電解液
律速となつて放電曲線が２段曲線となり、電池電
圧の平坦性もなくなる。又、１／２では充填され
る絶対亜鉛量が少なく、かつ電解液量が多いため
に、放電容量が少ない。
従つて、本発明に示すように充填率75〜85％、
充填する亜鉛の体積／電解液体積が１／1.3〜
１／1.7に規制し、負極容器に充填後、封口する
製造法にしたとき高容量を有し、かつ耐漏液性能
のすぐれたものにできる。[Table] As a result, 7 to 9 leaks were observed immediately when the filling rate was 90% or higher. Moreover, as mentioned above
At high rate discharges of 180Ω and 300Ω, even batteries that had not leaked immediately began to leak from the air holes. By the way, in mercury batteries and silver batteries, even when the filling rate of the negative electrode container reaches 90%, there is no leakage immediately, during discharge, or after discharge, which is a problem unique to button-type air-zinc batteries. The tendency is for the filling rate of zinc chloride powder and alkaline electrolyte to the negative electrode container to be 75 to 85.
% was not observed. Also, the volume ratio of zinc to electrolyte is 1/1.3 to 1/1.7.
The results were similar. That is, when the ratio is 1/1, the amount of electrolyte is smaller than the amount of zinc to be filled, so the reaction of zinc becomes rate-limiting to the electrolyte, the discharge curve becomes a two-step curve, and the flatness of the battery voltage is lost. Further, at 1/2, the absolute amount of zinc filled is small and the amount of electrolyte is large, so the discharge capacity is small. Therefore, as shown in the present invention, the filling rate is 75 to 85%,
Volume of zinc to be filled/volume of electrolyte liquid is 1/1.3~
By regulating the ratio to 1/1.7 and using a manufacturing method in which the negative electrode container is sealed after being filled, it can have a high capacity and have excellent leakage resistance.
第１図はボタン型空気−亜鉛電池の部分断面
図、第２図は負極の負極容器内への充填率と内部
抵抗との関係を示す図である。
１……正極ケース、２……空気取入孔、３……
多孔性紙、４……撥水膜、５……空気極、６……
セパレータ、７……含液剤、８……ガスケツト、
９……負極容器、１０……負極活物質。
FIG. 1 is a partial sectional view of a button-type air-zinc battery, and FIG. 2 is a diagram showing the relationship between the filling rate of the negative electrode into the negative electrode container and the internal resistance. 1...Positive electrode case, 2...Air intake hole, 3...
Porous paper, 4... Water repellent membrane, 5... Air electrode, 6...
Separator, 7...liquid containing agent, 8...gasket,
9... Negative electrode container, 10... Negative electrode active material.
Claims (1)
末、電解液にアルカリ水溶液をそれぞれ用い、負
極容器中にゲル化剤を含むことなく活物質である
汞化亜鉛粉末とアルカリ電解液とを充填し、電池
を製造する方法であつて、ガスケツトとカツプリ
ングされた負極容器中における負極活物質と電解
液との充填率を75〜85％に規制し、かつ負極活物
質の体積１に対して、電解液体積を1.3〜1.7の範
囲に規制した汞化亜鉛粉末とアルカリ電解液のみ
を一定量充填後、空気極等が挿入された正極ケー
スと前記負極容器とを嵌合し、負極容器中に25〜
15％の空〓部を設けた状態にて正極ケースを封口
してなることを特徴とするボタン型空気−亜鉛電
池の製造法。1 Using oxygen as the positive electrode active material, zinc chloride powder as the negative electrode active material, and alkaline aqueous solution as the electrolyte, the active material zinc powder and alkaline electrolyte are used without containing a gelling agent in the negative electrode container. A method of manufacturing a battery by regulating the filling rate of the negative electrode active material and electrolyte in the negative electrode container coupled with the gasket to 75 to 85%, and with respect to 1 volume of the negative electrode active material. After filling a certain amount of zinc oxide powder and alkaline electrolyte with the electrolyte volume regulated within the range of 1.3 to 1.7, the cathode case into which the air electrode etc. has been inserted is fitted with the anode container, and the anode container is filled with 25~
A method for manufacturing a button-type air-zinc battery, characterized in that the positive electrode case is sealed with a 15% empty space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56186289A JPS5887781A (en) | 1981-11-19 | 1981-11-19 | Manufacturing method of button type air-zinc battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56186289A JPS5887781A (en) | 1981-11-19 | 1981-11-19 | Manufacturing method of button type air-zinc battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5887781A JPS5887781A (en) | 1983-05-25 |
| JPH0445938B2 true JPH0445938B2 (en) | 1992-07-28 |
Family
ID=16185699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56186289A Granted JPS5887781A (en) | 1981-11-19 | 1981-11-19 | Manufacturing method of button type air-zinc battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5887781A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6436571B1 (en) | 1998-03-06 | 2002-08-20 | Rayovac Corporation | Bottom seals in air depolarized electrochemical cells |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2535269C3 (en) * | 1975-08-07 | 1979-01-04 | Varta Batterie Ag, 3000 Hannover | Galvanic primary element with alkaline electrolyte and a hydrophobic air electrode |
-
1981
- 1981-11-19 JP JP56186289A patent/JPS5887781A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5887781A (en) | 1983-05-25 |
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