JPH0244650A - Organic electrolyte battery - Google Patents
Organic electrolyte batteryInfo
- Publication number
- JPH0244650A JPH0244650A JP19408488A JP19408488A JPH0244650A JP H0244650 A JPH0244650 A JP H0244650A JP 19408488 A JP19408488 A JP 19408488A JP 19408488 A JP19408488 A JP 19408488A JP H0244650 A JPH0244650 A JP H0244650A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- case
- gasket
- battery case
- contact
- 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
Links
- 239000005486 organic electrolyte Substances 0.000 title claims description 8
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 239000003792 electrolyte Substances 0.000 claims abstract description 6
- 238000010248 power generation Methods 0.000 claims 1
- 238000003466 welding Methods 0.000 abstract description 2
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000035515 penetration Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 241000272814 Anser sp. Species 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000007773 negative electrode material Substances 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
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/14—Cells with non-aqueous electrolyte
- H01M6/16—Cells with non-aqueous electrolyte with organic electrolyte
-
- 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)
Abstract
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、有機電解液電池に関するものである。[Detailed description of the invention] Industrial applications The present invention relates to an organic electrolyte battery.
従来の技術
従来、この種の有機電解液電池は、第３図に示すような
構成であった。Ｍｓ図において、１は負極端子を兼ねる
封口板、２は正極端子を兼ねる電池ケース、３はポリプ
ロピレンからなるガスケット、４は二酸化マンガン等を
活物質とする正極、６は負極活物質であるリチウム、６
はポリプロピレン等からなるセパレータ、７は正極リン
グである０
発明が解決しようとする課題
このような従来構成を応用して電池厚さが厚い場合の構
成方法は以下の３種類が考えられる。BACKGROUND OF THE INVENTION Conventionally, this type of organic electrolyte battery has had a structure as shown in FIG. In the Ms diagram, 1 is a sealing plate that also serves as a negative electrode terminal, 2 is a battery case that also serves as a positive electrode terminal, 3 is a gasket made of polypropylene, 4 is a positive electrode whose active material is manganese dioxide, etc., 6 is lithium which is a negative electrode active material, 6
is a separator made of polypropylene or the like, and 7 is a positive electrode ring.Problems to be Solved by the InventionThe following three types of construction methods can be considered when applying such a conventional construction to a case where the battery is thick.
（１）第４図のように封口板１の折り返し部（２Ｌ）の
寸法を長くする方法。(1) A method of lengthening the folded portion (2L) of the sealing plate 1 as shown in FIG.
（２）第６図のように封口板１のＲ部（ｂ）の形状を変
化させる方法。(2) A method of changing the shape of the R portion (b) of the sealing plate 1 as shown in FIG.
（３）第６図のようにガスケット３の底部厚さ（Ｃ）を
厚くする方法。(3) A method of increasing the bottom thickness (C) of the gasket 3 as shown in FIG.
がある。しかし、これら３種の方法を用いることによシ
、耐漏液性能が、悪化することが問題となっている。There is. However, there is a problem in that the use of these three methods deteriorates the leakage resistance.
課題を解決するための手段
この問題を解決するために本発明は、第２図に示すよう
なフランジ状平坦部をもつ電池内ケース８を電池ケース
内に設置し、電池ケースと電池内ケースとを溶接したも
のである。Means for Solving the Problem In order to solve this problem, the present invention installs a battery inner case 8 having a flange-like flat part as shown in FIG. It is welded.
作用
この構成により、第２図の電池内ケース８の上部平坦部
９にガスケット底面が接し、下部平坦部１０は電池ケー
ス内底面に接して電池厚さに対しては柱部１１の寸法を
変化させることにより対応しうる。Effect: With this configuration, the bottom surface of the gasket is in contact with the upper flat portion 9 of the battery inner case 8 shown in FIG. This can be dealt with by letting
実施例
第１図は、本発明の一実施例による有機電解液電池の縦
断面図であシ、９が本発明による電池内ケースである。Embodiment FIG. 1 is a longitudinal sectional view of an organic electrolyte battery according to an embodiment of the present invention, and 9 is a case inside the battery according to the present invention.
他の構成部品は従来例を示す第３図と同様である。従来
例の第４図から第６図に示す構造と比較して、本発明構
造を用いた厚さ６■。Other components are the same as those shown in FIG. 3 showing the conventional example. Compared to the conventional structure shown in FIGS. 4 to 6, the thickness using the structure of the present invention is 6 mm.
径２０龍の電池寸法の一１０°Ｃと６０°Ｃで１時間保
つヒートサイクルでの耐漏液性を第１表に示す。Table 1 shows the leakage resistance of a battery with a diameter of 20 mm during a heat cycle at 10°C and 60°C for 1 hour.
第 １ 表
従来構造は、耐漏液性に劣ることがわかる。第４図、第
６図に示す構造では、封口板１のトップ（ｄ＋ 、 （
６）と折り返し部（ｆｌ 、 （ｇ）の間の距離が大き
いため、電池ケース２を径方向にかしめることにより封
口するこの種の電池において、封口板トップ（ｄ）。Table 1 shows that the conventional structure is inferior in leakage resistance. In the structure shown in FIGS. 4 and 6, the top (d+, (
6) In this type of battery, the sealing plate top (d) is sealed by caulking the battery case 2 in the radial direction because the distance between the folded portion (fl, (g)) is large.
（１５）を支点として、内側にモーメントが封口板にか
かり、そのかしめ力に封口板が耐えられず変形量が大き
いために耐漏液性が悪い。また第６図に示す構造では、
封口によるガスケット底部の圧縮率が低下するために、
耐漏液性が劣る。本発明の電池内ケースは、上部平坦部
９がガスケット底部に接しており、従来構造で耐漏液性
の悪化の原因となった、封口板の変形、ガスケット底部
の圧縮率の低下はなく、良好な耐漏液性を示す。又、従
来この種の電池に用いられてきている正極リング７は、
放電による正極の体積膨張を電池の軸方向に働かせ、電
池の内部接触を良好に保つ作用をもっているが、本発明
の電池内ケースの内面１２には、この正極リングの作用
をはたすことができる。第７図に本発明による構造を有
した電池の放電曲縁を示すが、放電中に内部接触不良を
おこして、内部抵抗が上昇することはない。つまシ、従
来用いてきた正極リング７をはぶくことができる。しか
し、電池組立後の内部抵抗は、表２の（２）に示すよう
に、例えば同表（１）に示す直径２ｏ高さ３．２ｆｉの
電池に比較して大きな値となる。これは解析の結果、電
池内ブースと電池ケースとの間に電解液が存在するため
であることが判明した。そのため、本発明による構造、
つまシ、電池内ケースと電池ブースを溶接することによ
シ、表２の（鋤に示すように非常に小さな内部抵抗値と
なった。With (15) as a fulcrum, a moment is applied to the sealing plate inwardly, and the sealing plate cannot withstand the caulking force, resulting in a large amount of deformation, resulting in poor leakage resistance. Furthermore, in the structure shown in Figure 6,
Because the compressibility of the bottom of the gasket decreases due to sealing,
Poor leak resistance. In the battery inner case of the present invention, the upper flat part 9 is in contact with the bottom of the gasket, and there is no deformation of the sealing plate or decrease in the compressibility of the bottom of the gasket, which caused deterioration in leakage resistance in the conventional structure, and the case is good. Shows excellent leakage resistance. In addition, the positive electrode ring 7 conventionally used in this type of battery is
The volume expansion of the positive electrode due to discharge acts in the axial direction of the battery, and has the effect of maintaining good internal contact within the battery, and this positive electrode ring can have this effect on the inner surface 12 of the battery inner case of the present invention. FIG. 7 shows the discharge curve of a battery having the structure according to the present invention, but internal contact failure does not occur during discharge and the internal resistance does not increase. It is possible to remove the conventional positive electrode ring 7. However, as shown in (2) of Table 2, the internal resistance after the battery is assembled is a larger value compared to, for example, a battery with a diameter of 2 and a height of 3.2 fi shown in Table (1). As a result of analysis, it was found that this was due to the presence of electrolyte between the booth inside the battery and the battery case. Therefore, the structure according to the invention,
By welding the pick, the battery inner case, and the battery booth, a very small internal resistance value was obtained as shown in Table 2.
表２
発明の効果
以上のように本発明によれば、電池厚さに関係なく良好
な耐漏液性および内部抵抗値を確保でき、また従来よシ
使用されてきた正極リングをはぶくことができ、さらに
、電池内ケースの高さを変更するだけで、同じ径の電池
の場合、ガスケット、封口板を共用化できるという効果
がある。Table 2 Effects of the Invention As described above, according to the present invention, good leakage resistance and internal resistance can be ensured regardless of battery thickness, and the positive electrode ring conventionally used can be removed. Furthermore, by simply changing the height of the battery inner case, it is possible to share gaskets and sealing plates for batteries of the same diameter.
第１図は本発明の一実施例による有機電解液電池の縦断
面図、第２図は本発明の電池内ケースの斜視図、第３図
は従来構造の有機電解液電池の縦断面図、第４図〜第６
図は電池厚さが厚い場合の従来構造の有機電解液電池の
縦断面図、第７図は本発明の構造を有した電池の放電特
性である。
１・・・・・・封口板、２・・・・・・電池ケース、３
・・・・・・ガスケット、７・・・・・・正極リング、
８・・・・・・電池内ケース。
代理人の氏名 弁理士 粟 野 重 孝 ほか１名第
図
Ｉ −村 口 板
２− 電先グース
３−・づスゲヅト
４−正 倫
５−ｍ−場
第５
７−正極リンク
図
４図
１−一一付口伝
２−電池ケース
３−・ガスゲット
４−正 極
Ｅ−一一自 極
６−でパレータ
８−を氾内ゲース
ｎ
ｊ −・−１す 口 板
２−電池ケース
３− ガスケット
４−正 極
Ｓ−負 極
６−・・亡Ｊでし−ダFIG. 1 is a vertical cross-sectional view of an organic electrolyte battery according to an embodiment of the present invention, FIG. 2 is a perspective view of the battery inner case of the present invention, and FIG. 3 is a vertical cross-sectional view of an organic electrolyte battery with a conventional structure. Figures 4 to 6
The figure is a vertical cross-sectional view of an organic electrolyte battery having a conventional structure when the battery thickness is thick, and FIG. 7 shows the discharge characteristics of a battery having the structure of the present invention. 1...Sealing plate, 2...Battery case, 3
...Gasket, 7...Positive electrode ring,
8...Battery inner case. Name of agent: Patent attorney Shigetaka Awano and one other person Figure I - Muraguchi board 2 - Telephone contact Goose 3 - Zusugetsu 4 - Seirin 5 - M-ba No. 5 7 - Positive electrode link Figure 4 Figure 1 - 11 oral history 2 - battery case 3 - gas get 4 - positive pole E - 11 self pole 6 - and pallet 8 - flood gauge n j - -1 mouth board 2 - battery case 3 - gasket 4 -Positive pole S-Negative pole 6-・Death J deshi-da
Claims (1)
電要素を、封口板と電池ケース及びこの両者間に介在し
たガスケットにより密封した扁平形電池であって、前記
ガスケットの底部にその上部平坦部が位置し、前記電池
ケース内底面にその下部平坦部が溶接接続されているフ
ランジ状電池内ケースを設けた有機電解液電池。A flat battery in which a power generation element consisting of a positive electrode, a negative electrode, and a separator holding an electrolyte is sealed with a sealing plate, a battery case, and a gasket interposed between the two, the upper flat part of which is located at the bottom of the gasket. An organic electrolyte battery comprising a flange-shaped battery inner case whose lower flat part is welded to the inner bottom surface of the battery case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19408488A JPH0244650A (en) | 1988-08-03 | 1988-08-03 | Organic electrolyte battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19408488A JPH0244650A (en) | 1988-08-03 | 1988-08-03 | Organic electrolyte battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0244650A true JPH0244650A (en) | 1990-02-14 |
Family
ID=16318690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19408488A Pending JPH0244650A (en) | 1988-08-03 | 1988-08-03 | Organic electrolyte battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0244650A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999035699A1 (en) * | 1998-01-12 | 1999-07-15 | Matsushita Electric Industrial Co., Ltd. | Sealed battery and its manufacture |
-
1988
- 1988-08-03 JP JP19408488A patent/JPH0244650A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999035699A1 (en) * | 1998-01-12 | 1999-07-15 | Matsushita Electric Industrial Co., Ltd. | Sealed battery and its manufacture |
| EP0975030A1 (en) * | 1998-01-12 | 2000-01-26 | Matsushita Electric Industrial Co., Ltd. | Sealed battery and its manufacture |
| US6322922B1 (en) | 1998-01-12 | 2001-11-27 | Matsushita Electric Industrial Co., Ltd. | Sealed battery and method for manufacturing same |
| EP0975030A4 (en) * | 1998-01-12 | 2004-07-07 | Matsushita Electric Ind Co Ltd | Sealed battery and its manufacture |
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