JPH0656760B2 - Button type alkaline battery - Google Patents
Button type alkaline batteryInfo
- Publication number
- JPH0656760B2 JPH0656760B2 JP60221217A JP22121785A JPH0656760B2 JP H0656760 B2 JPH0656760 B2 JP H0656760B2 JP 60221217 A JP60221217 A JP 60221217A JP 22121785 A JP22121785 A JP 22121785A JP H0656760 B2 JPH0656760 B2 JP H0656760B2
- Authority
- JP
- Japan
- Prior art keywords
- negative electrode
- folded
- thickness
- button type
- shape
- 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
- 238000005452 bending Methods 0.000 description 7
- 239000007788 liquid Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 2
- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Chemical compound [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910001923 silver oxide Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
- H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
- H01M50/171—Lids or covers characterised by the methods of assembling casings with lids using adhesives or sealing agents
-
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明はボタン型アルカリ電池の改良に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an improvement in a button type alkaline battery.
従来、第４図及び第５図に示すようにボタン型アルカリ
電池の負極缶形状は、折返し２ａの、丸みの半径２ｂ
は、缶の厚さ２ｅよりも大きく、折返しの外周２ｃは、
折返し先端の方が大きいか、負極缶中心を中心とするほ
ぼ円筒状の折返し（２ｄ）をもつものであった。Conventionally, as shown in FIGS. 4 and 5, a negative electrode can shape of a button type alkaline battery has a folded-back 2a and a rounded radius 2b.
Is larger than the thickness 2e of the can, and the outer circumference 2c of the folded back is
The tip of the folded back was larger or had a substantially cylindrical folded (2d) centered on the center of the negative electrode can.
ボタン型アルカリ電池を使用する電子機器の消費電流が
小さくなり、電池を交換せずに使用する時間が長くなっ
ている為、電池の信頼性に対する要求が強くなってい
る。特に耐漏液性が、機器の損傷にもつながりかねない
ため、最も重要な特性であり、その向上が、本発明の課
題とした点である。Since the electric current consumption of the electronic device using the button type alkaline battery is small and the battery is used for a long time without being replaced, there is a strong demand for the reliability of the battery. In particular, the liquid leakage resistance is the most important property because it may lead to damage to the equipment, and its improvement is the subject of the present invention.
ボタン型アルカリ電池の耐漏液性に影響する要因は種々
あるが、本発明においては、封口蓋を兼ねる負極缶の形
状を変えることにより、その飛躍的向上を達成し得た。Although there are various factors that affect the leakage resistance of the button-type alkaline battery, in the present invention, a dramatic improvement can be achieved by changing the shape of the negative electrode can that also serves as the sealing lid.
本発明では、従来の負極缶形状に以下の２点の改良を加
えた。In the present invention, the following two improvements are added to the conventional negative electrode can shape.
その一つは、第１図に示すように、折返しの丸み１ｂの
半径１ｃを、缶の板厚１ｅよりも小さくすること、もう
一つは、折返し部の曲げ始め部分が折り返し高さの１／
１０以上で、先端部一ｇの押し曲げ量が折り返し部分の
厚さ１ｌの１／２０以上としたことである。One of them is, as shown in FIG. 1, that the radius 1c of the fold 1b is smaller than the plate thickness 1e of the can. The other is that the bending start portion of the fold has a fold height of 1e. /
When the thickness is 10 or more, the amount of pushing and bending of the tip 1g is 1/20 or more of the thickness 1l of the folded portion.
ボタン型アルカリ電池の電解液の封止は、ガスケットが
缶に適度に押圧されていることによって保たれている。
本発明においては、負極缶を前記の形状にすることによ
り、正極缶をカシメて封止をした時、ガスケットの負極
缶への押圧される範囲が、第１図１ｇから１ｆにかけて
広くなる。又１ｂの半径１ｃを小さくすると、１ｂ付近
のガスケットの押圧が上昇する。従って本発明の２点の
改良によりガスケットの塑性流動による応力緩和に時間
がかかり、当然漏液発生までの時間が長くなるのであ
る。The sealing of the electrolytic solution of the button type alkaline battery is maintained by the gasket being appropriately pressed against the can.
In the present invention, by forming the negative electrode can into the above-described shape, when the positive electrode can is caulked and sealed, the range in which the gasket is pressed against the negative electrode can becomes wider from 1g to 1f in FIG. When the radius 1c of 1b is reduced, the pressure of the gasket near 1b increases. Therefore, due to the two improvements of the present invention, it takes time to relax the stress due to the plastic flow of the gasket, and naturally the time until the occurrence of liquid leakage becomes long.
以下に本発明の実施例を図面にもとづいて説明する。第
１図において、負極缶１は、折返し丸み１ｂの半径１ｃ
が負極缶の底部１ｄの厚さ１ｅよりも小さい折返し１ａ
を有している。また、折返しの先端１ｇが、折返しの中
程１ｆよりも負極缶の中心に近くなるように曲げられて
いる。Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, the negative electrode can 1 has a radius 1c of a folded roundness 1b.
Is a turnaround 1a that is smaller than the thickness 1e of the bottom 1d of the negative electrode can.
have. The tip 1g of the folded back is bent so as to be closer to the center of the negative electrode can than the middle 1f of the folded back.
第２図は、本願発明の詳細を示す図で、負極缶１の折返
し部（１ａ）は、その先端部分に内側方向に曲げられた
曲げ部（１ｈ）が形成されており、前記曲げ部の形状
は、曲げ始め部分が折り返し高さ（１ｊ）の１／１０以
上（１ｉ）で、先端部の押し曲げ量（１ｋ）が折り返し
部分の厚さ（１ｌ）の１／２０以上であるであるように
構成されている。FIG. 2 is a diagram showing the details of the present invention, in which the folded portion (1a) of the negative electrode can 1 has a bent portion (1h) bent inward at the tip portion thereof. The shape is such that the bending start portion is 1/10 or more (1i) of the folding back height (1j), and the pushing bending amount (1k) of the tip portion is 1/20 or more of the folding back thickness (1l). Is configured.
負極缶１をこのような形状にすることにより、正極缶を
カシメて封止する時に、ガスケットの負極缶への押圧さ
れる範囲が、折返し先端から折返し中程にかけて広くな
り、折返し丸み付近のガスケットの押圧力が上昇するの
で、ガスケットの塑性流動による応力緩和に時間がかか
り、漏液発生までの時間を長くすることができる。By forming the negative electrode can 1 into such a shape, when the positive electrode can is caulked and sealed, the range in which the gasket is pressed against the negative electrode can becomes wider from the folded tip to the middle of the folded portion, and the gasket in the vicinity of the rounded corner is folded. Since the pressing force of is increased, it takes time to relax the stress due to the plastic flow of the gasket, and it is possible to lengthen the time until the occurrence of liquid leakage.
外径 5.8mm、厚さ1.65mmのボタン型酸化銀電池におい
て、第２図の形状を有する負極缶を使用した本発明の電
池と、第４図に示す負極缶を使用した従来の電池を製造
し比較を行った。A button type silver oxide battery having an outer diameter of 5.8 mm and a thickness of 1.65 mm was manufactured using the negative electrode can having the shape shown in FIG. 2 and the conventional battery using the negative electrode can shown in FIG. Then, a comparison was made.
第１表にその耐漏液性のデータを示す。試験は温度40
℃、相対湿度93％の恒温恒湿槽に保持し、所定時間毎に
取出して、漏液の有無を調べたものである。試験数は、
両方とも 300個、表の数字は評価の不良数である。Table 1 shows the liquid leakage resistance data. Test temperature 40
The sample was kept in a constant temperature and humidity chamber at ℃ and a relative humidity of 93%, taken out at predetermined intervals, and examined for leakage. The number of tests is
Both are 300, and the numbers in the table are the number of defective products.
本実験により、本発明の効果は明らかである。 From this experiment, the effect of the present invention is clear.
本発明は以上説明したように、負極缶の折返し形状を、
折返し丸みの半径を負極缶の底部の厚さより小さくし、
折返し部の先端部分に、曲げ始め部分が折り返し高さの
１／１０以上で、先端部の押し曲げ量が折り返し部分の
厚さの１／２０以上である構成としたので、漏液発生ま
での時間を長くし、耐漏液性を向上できるという効果を
有する。As described above, the present invention changes the folded shape of the negative electrode can to
Make the radius of the folded round smaller than the thickness of the bottom of the negative electrode can,
At the tip portion of the folded portion, the bending start portion is 1/10 or more of the folding height, and the pushing and bending amount of the tip portion is 1/20 or more of the thickness of the folded portion. It has the effect of prolonging the time and improving the liquid leakage resistance.
第１図及び第２図は本発明に使用する負極缶の部分断面
図、第３図は本発明に使用する負極缶の側方形状図、第
４図及び第５図は、従来から使用されている負極缶の部
分断面図である。 １……負極缶 １ａ……負極缶の折返し部分 １ｂ……負極缶の折返し部分の丸み １ｃ……１ｂの半径 １ｄ……１の底部 １ｅ……１ｄの厚さ １ｆ……１ａの中程の部分 １ｇ……１ａの先端の部分で缶の製造時に表材から切断
される角 １ｈ……１ａの先端近くの内方に曲げた部分 １ｉ……１ｈの高さ １ｊ……１ａの高さ １ｋ……１ｈの内方への押し曲げ量 １ｌ……１ａの厚さ1 and 2 are partial cross-sectional views of the negative electrode can used in the present invention, FIG. 3 is a side view of the negative electrode can used in the present invention, and FIGS. 4 and 5 are conventionally used. It is a partial cross-sectional view of a negative electrode can. 1 ... Negative electrode can 1a ... Folded portion of negative electrode can 1b ... Roundness of folded portion of negative electrode can 1c ... Radius of 1b ... 1d ... Bottom of 1e ... 1d thickness 1f .... Part 1g ...... Corner that is cut from the surface material at the tip of 1a when manufacturing a can 1h …… Inwardly bent part near 1a tip 1i …… Height of 1h 1j …… Height of 1a 1k …… Inward bending amount of 1h 1l …… Thickness of 1a
Claims (1)
兼ね、その外周部分に折返し（１ａ）を有する負極缶
（１）、ガスケット、セパレータ、正極活物質、負極活
物質及びアルカリ電解液を主たる構成要素とするボタン
型電池において、 前記負極缶の折返し（１ａ）の形状は、折返し丸み（１
ｂ）の半径（１ｃ）が負極缶の底部（１ｄ）の厚さ（１
ｅ）よりも小さく、 さらに、折返し片の外周には、内側方向に曲げられた曲
げ部（１ｈ）が形成されており、 前記曲げ部（１ｈ）の形状は、曲げ始め部分が折り返し
高さ（１ｊ）の１／１０以上（１ｉ）で、先端部の押し
曲げ量（１ｋ）が折り返し部分の厚さ（１ｌ）の１／２
０以上であることを特徴とするボタン型電池。1. A positive electrode can that also serves as a positive electrode lead, a negative electrode can (1) that also serves as a negative electrode lead and has a fold (1a) on its outer periphery, a gasket, a separator, a positive electrode active material, a negative electrode active material, and an alkaline electrolyte. In the button-type battery as a constituent element, the shape of the folded back (1a) of the negative electrode can is the folded back (1a).
b) radius (1c) is the thickness (1d) of the bottom part (1d) of the negative electrode can.
In addition, a bent portion (1h) bent inward is formed on the outer circumference of the folded piece, and the bent portion (1h) has a shape in which the bending start portion has a folded height ( 1/10 or more (1i) of 1j), the pushing bending amount (1k) of the tip is 1/2 of the thickness (1l) of the folded portion.
Button type battery characterized by being 0 or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60221217A JPH0656760B2 (en) | 1985-10-04 | 1985-10-04 | Button type alkaline battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60221217A JPH0656760B2 (en) | 1985-10-04 | 1985-10-04 | Button type alkaline battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6282644A JPS6282644A (en) | 1987-04-16 |
| JPH0656760B2 true JPH0656760B2 (en) | 1994-07-27 |
Family
ID=16763298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60221217A Expired - Lifetime JPH0656760B2 (en) | 1985-10-04 | 1985-10-04 | Button type alkaline battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0656760B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4909470B2 (en) * | 2001-06-28 | 2012-04-04 | セイコーインスツル株式会社 | Nonaqueous electrolyte secondary battery |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57107266U (en) * | 1980-12-23 | 1982-07-02 |
-
1985
- 1985-10-04 JP JP60221217A patent/JPH0656760B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6282644A (en) | 1987-04-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| S111 | Request for change of ownership or part of ownership |
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|
| R360 | Written notification for declining of transfer of rights |
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| R371 | Transfer withdrawn |
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| S111 | Request for change of ownership or part of ownership |
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| R350 | Written notification of registration of transfer |
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| R250 | Receipt of annual fees |
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| EXPY | Cancellation because of completion of term |