JPS5837668B2 - Manufacturing method for button batteries - Google Patents
Manufacturing method for button batteriesInfo
- Publication number
- JPS5837668B2 JPS5837668B2 JP6279282A JP6279282A JPS5837668B2 JP S5837668 B2 JPS5837668 B2 JP S5837668B2 JP 6279282 A JP6279282 A JP 6279282A JP 6279282 A JP6279282 A JP 6279282A JP S5837668 B2 JPS5837668 B2 JP S5837668B2
- Authority
- JP
- Japan
- Prior art keywords
- anode
- piece
- manufacturing
- anode mixture
- cathode
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/04—Cells with aqueous electrolyte
- H01M6/06—Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid
- H01M6/12—Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid with flat electrodes
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Primary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Description
【発明の詳細な説明】
この発明は銀電池やニッケルカドミウム電池などのボタ
ン型電池の製造法に係り、陽極合剤と陽極缶との接触を
良好にして、重負荷放電時の閉路電圧を大きくすること
を目的とする。[Detailed Description of the Invention] This invention relates to a method for manufacturing button-type batteries such as silver batteries and nickel-cadmium batteries, and improves the contact between the anode mixture and the anode can to increase the closed circuit voltage during heavy load discharge. The purpose is to
第３図に示すようなこの種ボタン型電池は、その製造に
あたり、たとえばあらかじめ周辺に断面逆Ｌ字形の台座
１を一体に装着した酸化銀などを主体とする陽極合剤片
２を或形しておき、この陽極合剤片２を陽極缶３の缶底
に挿入し、陽極合剤片２の上に微孔性フイルム４、半透
膜５、吸液紙６、ガスケット１、ならびに陰極剤８を内
填した陰極缶９を順次載置し、陽極缶３の開口部１０を
内方ヘカールして上記陰極缶９を締着する方法が一般に
行なわれている。This kind of button-type battery as shown in FIG. 3 is produced by, for example, forming an anode mixture piece 2 mainly made of silver oxide or the like to which a pedestal 1 having an inverted L-shaped cross section is attached in advance around the periphery. Then, insert this anode mixture piece 2 into the bottom of the anode can 3, and place the microporous film 4, semipermeable membrane 5, absorbent paper 6, gasket 1, and cathode agent on the anode mixture piece 2. A commonly used method is to sequentially place the cathode cans 9 filled with the anode cans 8, curl the opening 10 of the anode can 3 inward, and then tighten the cathode cans 9.
そのため、上記陰極缶９の締着により、陽極缶３の底部
１１は内方から押圧力を受けて、外方へ遡性的に彎曲す
る。Therefore, due to the tightening of the cathode can 9, the bottom part 11 of the anode can 3 is subjected to a pressing force from the inside and is retroactively bent outward.
この彎曲量ｄは実測によれば、平均０．０８ｍｍであっ
た。According to actual measurements, the amount of curvature d was 0.08 mm on average.
ところが、従来、陽極合剤片２の底部１２は彎曲のない
平面形なので、上記陽極缶３の底部１１との間に間隙１
３が生じ、陽極合剤片２と陽極缶３との接触部は陽極缶
３の隅部１４付近に限定されてそれだけ接触面積が減少
し、その結果、重負荷放電時の閉路電圧が低くなるとい
う欠点があった。However, conventionally, since the bottom part 12 of the anode mixture piece 2 has a flat shape with no curvature, there is a gap 1 between it and the bottom part 11 of the anode can 3.
3 occurs, the contact area between the anode mixture piece 2 and the anode can 3 is limited to the vicinity of the corner 14 of the anode can 3, and the contact area decreases accordingly, resulting in a lower closed circuit voltage during heavy load discharge. There was a drawback.
この発明は上記欠点を解消したもので、以下、その実施
例を図面にしたがって説明する。This invention eliminates the above-mentioned drawbacks, and embodiments thereof will be described below with reference to the drawings.
第１図において、周辺に断面逆Ｌ字形の台座１を一体に
装着した酸化銀などを主体とする或形陽極合剤片２が陽
極缶３の缶底に挿入されているが、この陽極合剤片２は
成形の際に、第２図に示すように、あらかじめ、その底
部１２が陽極缶底部１１の形状に合致するよう、凸状に
彎曲量ｄだけ彎曲されている。In FIG. 1, a piece of anode mixture 2 mainly made of silver oxide, etc., is integrally attached with a pedestal 1 having an inverted L-shaped cross section around the periphery, and is inserted into the bottom of an anode can 3. When molding the agent piece 2, as shown in FIG. 2, the agent piece 2 is previously curved in a convex shape by an amount of curvature d so that its bottom 12 matches the shape of the anode can bottom 11.
なお、この例では陽極合剤片２の上面部１６を凹状に彎
曲させて、陽極合剤片２の厚みを一定にしているが、上
記上面部１６を彎曲のない平面形としてもよい。In this example, the upper surface part 16 of the anode mixture piece 2 is curved in a concave shape so that the thickness of the anode mixture piece 2 is constant, but the upper surface part 16 may have a flat shape without any curvature.
このような凸状に彎曲した底部１２を有する陽極合剤片
２の上に、第１図に示すように、ポリオレフインからな
る耐酸化性の微孔性フイルム４、セロファンからなる半
透膜５、ビニロンーレイヨン混抄紙からなる吸液紙６、
ガスケソト７、ならびに亜鉛粉末とゲル状アルカリ電解
液の混合物からなる陰極剤８を内填した陰極缶９を順次
載置し、陽極缶３の開口部１０を内方ヘカールして上記
陰極缶９を締着する。As shown in FIG. 1, an oxidation-resistant microporous film 4 made of polyolefin, a semipermeable membrane 5 made of cellophane, Absorbent paper 6 made of vinylon-rayon mixed paper,
A cathode can 9 filled with a gasket 7 and a cathode agent 8 made of a mixture of zinc powder and a gelled alkaline electrolyte is placed one after another, and the opening 10 of the anode can 3 is curled inward to close the cathode can 9. Tighten.
この締着の際、締着力により陽極缶底部１１は陽極合剤
片２を介して外方へ抑圧されて彎曲するが、このとき上
記底部１１は陽極合剤片２の底部１２の形状に合致する
よう彎曲するので、両底部ＩＬ１２間に間隙が生じるこ
とはなく、シたがって、両底部１１．１２は広い接触面
積にわたって互いに密に接触する。During this tightening, the anode can bottom 11 is pressed outward through the anode mixture piece 2 and curved due to the tightening force, but at this time, the bottom 11 matches the shape of the bottom 12 of the anode mixture piece 2. Since it is curved so that there is no gap between the two bottom parts IL12, the two bottom parts 11.12 are therefore in close contact with each other over a large contact area.
上述のように、この発明によれば、陽極合剤片と陽極缶
との接触が良好になり、その結果、重負荷放電時の閉路
電圧が大きくなる。As described above, according to the present invention, the contact between the anode mixture piece and the anode can is improved, and as a result, the closed circuit voltage during heavy load discharge is increased.
第１図はこの発明の一実施例を示す縦断面図、第２図は
第１図の陽極合剤片を示す縦断面図、第３図は従来例の
縦断面図である。
２・・・・・・陽極合剤片、３・・・・・・陽極缶、９
・・・・・・陰極缶、１０・・・・・・開口部、１２・
・・・・・底部。FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention, FIG. 2 is a longitudinal sectional view showing the anode mixture piece of FIG. 1, and FIG. 3 is a longitudinal sectional view of a conventional example. 2... Anode mixture piece, 3... Anode can, 9
...Cathode can, 10...Opening, 12.
·····bottom.
Claims (1)
ののち前記陽極缶３の開口部１０を内方ヘカールして陰
極缶９を締着するボタン型電池の製造法において、前記
陽極合剤片２の底部１２にあらかじめ凸状曲率面を形成
することを特徴とするボタン型電池の製造法。1. In a button-type battery manufacturing method, the formed anode mixture piece 2 is inserted into the bottom of an anode can 3, and then the opening 10 of the anode can 3 is curled inward to tighten the cathode can 9. A method for manufacturing a button-type battery, characterized in that a convex curved surface is formed in advance on the bottom portion 12 of the anode mixture piece 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6279282A JPS5837668B2 (en) | 1982-04-14 | 1982-04-14 | Manufacturing method for button batteries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6279282A JPS5837668B2 (en) | 1982-04-14 | 1982-04-14 | Manufacturing method for button batteries |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57182968A JPS57182968A (en) | 1982-11-11 |
| JPS5837668B2 true JPS5837668B2 (en) | 1983-08-17 |
Family
ID=13210551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6279282A Expired JPS5837668B2 (en) | 1982-04-14 | 1982-04-14 | Manufacturing method for button batteries |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5837668B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022070911A1 (en) * | 2020-09-29 | 2022-04-07 | Tdk株式会社 | Button-type electrochemical element |
-
1982
- 1982-04-14 JP JP6279282A patent/JPS5837668B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57182968A (en) | 1982-11-11 |
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