JPS6129061A - Sealed cell - Google Patents

Sealed cell

Info

Publication number
JPS6129061A
JPS6129061A JP14883384A JP14883384A JPS6129061A JP S6129061 A JPS6129061 A JP S6129061A JP 14883384 A JP14883384 A JP 14883384A JP 14883384 A JP14883384 A JP 14883384A JP S6129061 A JPS6129061 A JP S6129061A
Authority
JP
Japan
Prior art keywords
sealing plate
less
height
case
sealed
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.)
Pending
Application number
JP14883384A
Other languages
Japanese (ja)
Inventor
Masatsugu Kondo
近藤 正嗣
Kazuhiro Imazawa
今沢 計博
Koichi Makino
幸一 牧野
Tadashi Sawai
沢井 忠
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP14883384A priority Critical patent/JPS6129061A/en
Publication of JPS6129061A publication Critical patent/JPS6129061A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00Primary cells; Manufacture thereof
    • H01M6/04Cells with aqueous electrolyte
    • H01M6/06Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid
    • H01M6/12Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid with flat electrodes
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10Primary casings; Jackets or wrappings
    • H01M50/147Lids or covers
    • H01M50/166Lids or covers characterised by the methods of assembling casings with lids
    • H01M50/171Lids or covers characterised by the methods of assembling casings with lids using adhesives or sealing agents

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Sealing Battery Cases Or Jackets (AREA)

Abstract

PURPOSE:To improve mechanical strength and leaktightness characteristics by making the total height of a sealing plate 0.6mm. or less and making the height of a U-shaped rising portion of its periphery 0.3-0.2mm. to form a sealed cell having the total thickness of 1.3mm. or less. CONSTITUTION:A positive-electrode black mix 2 is arranged on the inner bottom of a case 1; a separator 4, an electrolyte impregnant 5, and a sealing plate 8 filled with a negative electrode 6 are mounted on it; and they are sealed via a packing 7 to form a button type silver oxide cell or the like having the total thickness of 1.3mm. or less. In this case, the total height of the sealing plate 8 is made 0.6mm. or less, the electric capacity of the negative electrode is balanced with that of the positive electrode, and the height of a U-shaped rising portion 8a of its periphery is set to 0.3-0.2mm.. Accordingly, the strength of the sealing plate 8 when a lateral force is applied can be largely improved, and a cell excellent in leaktightness characteristics can be obtained.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、総厚が1.3H以下の酸化銀電池、ニッケル
ー亜鉛電池、水銀電池、リチウム電池、マンガン電池の
ように液密、気密に封口した密閉電池に関するものであ
る。
[Detailed Description of the Invention] Industrial Application Field The present invention is applicable to liquid-tight and air-tightly sealed cells such as silver oxide batteries, nickel-zinc batteries, mercury batteries, lithium batteries, and manganese batteries with a total thickness of 1.3H or less. It concerns sealed batteries.

従来例の構成とその問題点 従来、総厚1.3H以下、例えば直径5.8m+n、総
厚1.29mmの酸化銀電池5R512SW  におい
ては、2 〆\ 。
Conventional Structure and Problems Conventionally, in a silver oxide battery 5R512SW having a total thickness of 1.3H or less, for example, a diameter of 5.8m+n and a total thickness of 1.29mm, 2.

封口板の周縁U字状構造ではなく、いわゆる帽子形の構
造を採用している。その理由としては、対日時の封口形
状に自由度があり、種々の締めつけ形状が使えるという
利点があるからである。しかし、このような構造は横か
らの力に弱く、必ずしも耐漏液に有利とは言えなかった
Instead of a U-shaped peripheral edge structure of the sealing plate, a so-called hat-shaped structure is adopted. The reason for this is that there is a degree of freedom in the shape of the seal when used against Japan, and there is an advantage that various tightening shapes can be used. However, such a structure is weak against lateral forces and is not necessarily advantageous in terms of leakage resistance.

発明の目的 本発明は、前述のような従来封口板の欠点を解消するも
のである。
OBJECTS OF THE INVENTION The present invention eliminates the drawbacks of conventional sealing plates as described above.

発明の構成 そのため本発明では電池の総厚が1.3問以下とし、そ
の際の封口板の総高を0.6mm以下とするとともに、
周縁U字状の立上す部分の高さを0.3〜0、2 mm
とすることによって、機械的強度を向上し、特 かつ電池の耐漏液性を向上するものである。
Structure of the Invention Therefore, in the present invention, the total thickness of the battery is 1.3 mm or less, the total height of the sealing plate is 0.6 mm or less, and
The height of the rising part of the U-shaped peripheral edge is 0.3 to 0.2 mm.
By doing so, the mechanical strength is improved, and in particular, the leakage resistance of the battery is improved.

実施例の説明 以下、その実施例を示し、図面と共に説明する。Description of examples Examples thereof will be shown and explained below with reference to the drawings.

第1図は本発明の一実施例におけるボタン型酸化銀電池
5R512SW の縦断面図である。図中1は有底筒状
の金属ケース、2はケース1の内底部にに配置した@極
合剤で、主として酸化銀粉末を加圧成形したものである
。3はL形リング台座、4は陽極合剤2上に載置したセ
パレータ、6はセパレータ上に配置した電解液含浸材で
アルカリ電解液を含浸している。6は含浸材上に配置し
たゲル状陰極で、氷化亜鉛粉末とポリアクリル酸等の造
粘剤とからなる。7は断面り字状をなすリング状の絶縁
封ロパソキングで、弾性、柔軟性に優れた合成ゴムある
いは耐老化性2機械的強度に優れた合成樹脂からなる。
FIG. 1 is a longitudinal sectional view of a button-type silver oxide battery 5R512SW in one embodiment of the present invention. In the figure, 1 is a cylindrical metal case with a bottom, and 2 is a @polar mixture placed at the inner bottom of the case 1, which is mainly formed by press-molding silver oxide powder. 3 is an L-shaped ring pedestal, 4 is a separator placed on the anode mixture 2, and 6 is an electrolyte-impregnated material placed on the separator and impregnated with an alkaline electrolyte. Reference numeral 6 denotes a gel cathode placed on the impregnated material, which is made of frozen zinc powder and a thickening agent such as polyacrylic acid. Reference numeral 7 is a ring-shaped insulating seal Ropasoking with an angular cross-section, which is made of synthetic rubber with excellent elasticity and flexibility or synthetic resin with excellent aging resistance and mechanical strength.

8は封口パッキング7を介在させて、ケース1の開口部
を閉塞する金属封口板で、その周縁には第2図に示す如
くU字状の立上り部8aを設けている。このような構造
においては封口板高さは0.6 mm以下となる。
Reference numeral 8 denotes a metal sealing plate that closes the opening of the case 1 with a sealing packing 7 interposed therebetween, and a U-shaped rising portion 8a is provided on the periphery of the metal sealing plate 8 as shown in FIG. In such a structure, the height of the sealing plate is 0.6 mm or less.

すなわち、陽極合剤の上にセパレータを置き、さらにそ
の上に封口板を積み重ね構造においては、陰極電気容量
と陽極電気容量のバランス上、総高1.3聴以下の電池
においては封口板高さは0,6喘以下となる。
In other words, in a structure in which a separator is placed on top of the anode mixture and a sealing plate is stacked on top of the separator, the height of the sealing plate should be adjusted in order to balance the cathode capacitance and anode capacitance for batteries with a total height of 1.3 or less. will be 0.6 or less.

又封口板立上り部8aの高さは0.3〜0.2mmとし
ている。第3図は総高0.6 m 、板厚0.15Wm
封口板に横からの力を加えた場合の、封口板強度を示す
。Aは従来の帽子形状の封口板、Bは8aの高さ寸法が
0.36m+nのもの、Cは8dの高さ寸法がo、25
聰のもの、Dは8aの高さ寸法が0.16咽のものであ
る。
Further, the height of the rising portion 8a of the sealing plate is set to 0.3 to 0.2 mm. Figure 3 shows a total height of 0.6 m and a plate thickness of 0.15 Wm.
This shows the strength of the sealing plate when a lateral force is applied to the sealing plate. A is a conventional cap-shaped sealing plate, B is a 8a height dimension of 0.36m + n, C is 8d height dimension is o, 25
So's D is 8a with a height of 0.16 mm.

第3図より、従来の帽子形状の封口板Aより強度がある
のは封口板形状がBとCのものである。
From FIG. 3, sealing plates B and C have stronger strength than the conventional cap-shaped sealing plate A.

しかしながら、Bの封口板形状のものでは電池封口時に
封口板最上部より、ケース最上部の方が上に行くため、
時計用等の電源としては好ましくない。
However, with the sealing plate shape B, the top of the case is higher than the top of the sealing plate when the battery is sealed.
This is not desirable as a power source for watches, etc.

また次表はA、B、C,Dの各封口板で5R512SW
  を作成した時の耐漏液性を示す。電池は各100個
作成し、温度46℃、相対湿度9゜〜96%の雰囲気に
保存しテストした時の漏液した電池数を示す・    
                1以下余白 この表からも封口板の横からの強度が耐漏液に大きく影
響しており、電池B、Cがすぐれていることがわかる。
In addition, the following table shows 5R512SW for each sealing plate of A, B, C, and D.
Shows the leakage resistance when created. The number of batteries that leaked when tested by making 100 of each battery and storing them in an atmosphere with a temperature of 46℃ and a relative humidity of 9℃ to 96% is shown.
1 or less margin This table also shows that the strength of the sealing plate from the side has a large effect on the leakage resistance, and that batteries B and C are excellent.

例として封口板板厚が0.15喘のものについて示した
が、板厚が0.2 mpnO時には0.25〜0.3s
nの立上り高さものが最も耐漏液が良かった。
As an example, the sealing plate thickness is 0.15 mpnO, but when the plate thickness is 0.2 mpnO, it is 0.25 to 0.3 s.
The one with a rising height of n had the best leakage resistance.

発明の効果 以上のように封口板の総高が0.6H以下の電池におい
ては封口板の周縁U字状の立上り部を0.30m++t
〜0.20mmとすることによって、耐漏液性にすぐれ
た密閉電池が得られる。
As described above, in batteries where the total height of the sealing plate is 0.6H or less, the rising part of the U-shaped peripheral edge of the sealing plate is 0.30m++t.
By setting the thickness to 0.20 mm, a sealed battery with excellent leakage resistance can be obtained.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明の一実施例としての酸化銀電池6八−7 SR512SW  の縦断面図、第2図は同封口板の要
部の拡大断面図、第3図は封口板形状と横からの耐圧荷
重との関係を示す図である。 1・・・・・・電池ケース、2・・・・・・陽極合剤、
7・・・・・・封口パッキング、8・・・・・・封口板
、8a・・・・・・封口板の立上り部。 代理人の氏名 弁理士 中 尾敏 男 ほか1名第1図 第3図 BCD 主1o1込汗ン7に
Fig. 1 is a longitudinal sectional view of a silver oxide battery 68-7 SR512SW as an embodiment of the present invention, Fig. 2 is an enlarged sectional view of the main part of the sealing plate, and Fig. 3 is a view of the sealing plate shape and from the side. FIG. 1...Battery case, 2...Anode mixture,
7...Sealing packing, 8...Sealing plate, 8a...Rising portion of sealing plate. Name of agent Patent attorney Toshi Nakao and one other person Figure 1 Figure 3 BCD Main 1 o 1 included

Claims (1)

【特許請求の範囲】[Claims] 電池ケースと、このケースの開口部を封口する封口板お
よび電池ケースと封口板との間に介在した断面L字状の
封口パッキングにより発電要素を密閉してなる総厚1.
3mm以下の密閉電池であって、封口板の総高が0.6
mm以下であり、かつこの封口板の周縁U字状の立上り
部分の高さが0.3〜0.2mmである密閉電池。
The total thickness is 1. The power generating element is sealed by a battery case, a sealing plate that seals the opening of the case, and a sealing packing having an L-shaped cross section interposed between the battery case and the sealing plate.
A sealed battery of 3 mm or less, with a total height of the sealing plate of 0.6
mm or less, and the height of the U-shaped rising portion of the peripheral edge of the sealing plate is 0.3 to 0.2 mm.
JP14883384A 1984-07-18 1984-07-18 Sealed cell Pending JPS6129061A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14883384A JPS6129061A (en) 1984-07-18 1984-07-18 Sealed cell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14883384A JPS6129061A (en) 1984-07-18 1984-07-18 Sealed cell

Publications (1)

Publication Number Publication Date
JPS6129061A true JPS6129061A (en) 1986-02-08

Family

ID=15461750

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14883384A Pending JPS6129061A (en) 1984-07-18 1984-07-18 Sealed cell

Country Status (1)

Country Link
JP (1) JPS6129061A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5804327A (en) * 1995-05-05 1998-09-08 Rayovac Corporation Thin walled electrochemical cell
US5904998A (en) * 1995-05-05 1999-05-18 Rayovac Corporation Metal-air cathode can and electrochemical cell made therewith

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5804327A (en) * 1995-05-05 1998-09-08 Rayovac Corporation Thin walled electrochemical cell
US5904998A (en) * 1995-05-05 1999-05-18 Rayovac Corporation Metal-air cathode can and electrochemical cell made therewith
US6042957A (en) * 1995-05-05 2000-03-28 Rayovac Corporation Thin walled electrochemical cell

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