JPS61165963A - organic electrolyte battery - Google Patents
organic electrolyte batteryInfo
- Publication number
- JPS61165963A JPS61165963A JP60006352A JP635285A JPS61165963A JP S61165963 A JPS61165963 A JP S61165963A JP 60006352 A JP60006352 A JP 60006352A JP 635285 A JP635285 A JP 635285A JP S61165963 A JPS61165963 A JP S61165963A
- Authority
- JP
- Japan
- Prior art keywords
- positive electrode
- battery
- organic electrolyte
- ring
- internal resistance
- 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
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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
- H01M50/534—Electrode connections inside a battery casing characterised by the material of the leads or tabs
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
- H01M50/533—Electrode connections inside a battery casing characterised by the shape of the leads or tabs
-
- 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)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Primary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
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、特に扁平形電池の改良に関
するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to improvements in organic electrolyte batteries, particularly flat batteries.
従来の技術
有機電解液電池は、高エネルギー密度を有するところか
ら、コイン形のような厚さの薄い扁平形のものが要求さ
れるに至っている。BACKGROUND OF THE INVENTION Since organic electrolyte batteries have a high energy density, thin and flat coin-shaped batteries are now required.
この扁平形電池において、正極と電池ケースの接触を十
分確保するために、従来次のような方法が採られていた
。In order to ensure sufficient contact between the positive electrode and the battery case in this flat battery, the following method has conventionally been adopted.
（１）ケースの内面に金属片による集電体を溶接により
配置させる。(1) A current collector made of a metal piece is placed on the inner surface of the case by welding.
（２）断面がＬ字状の金属製リングを用い、正極とケー
ス間にこのリングの水平な底部を介在させる。(2) A metal ring with an L-shaped cross section is used, and the horizontal bottom of this ring is interposed between the positive electrode and the case.
発明が解決しようとする問題点
上記（１）の方法は、集電体が電池形成後、正極にくい
こむため、正極とケースとの接触を良好とさせることは
可能である。しかし、放電による負極活物質、例えばリ
チウムの減少量に比較して正極の膨張が小さい場合、つ
まり放電により正、負極の極間距離が増加するような電
池系の場合、放電中の内部抵抗の上昇が大きくなるとい
う問題点がある。（２）の方法は（１）の方法の問題点
全解決する方法であり、放電による正極の膨張を、リン
グにより正極の周囲をかこむことにより正極の厚み方向
に主に起こさせ、正、負極の極間距離を良好に保たせ、
さらに正極とケースとの間にリングの水平な底部が介在
して、この部分が加圧され、従来方法（１）の集電体と
同様な作用をする。Problems to be Solved by the Invention In the method (1) above, since the current collector is embedded in the positive electrode after the battery is formed, it is possible to improve the contact between the positive electrode and the case. However, if the expansion of the positive electrode is small compared to the decrease in the negative active material, such as lithium, due to discharge, that is, in the case of a battery system where the distance between the positive and negative electrodes increases due to discharge, the internal resistance during discharge will decrease. The problem is that the increase will be large. Method (2) is a method that solves all the problems of method (1), and the expansion of the positive electrode due to discharge is caused mainly in the thickness direction of the positive electrode by surrounding the positive electrode with a ring, and the positive and negative electrodes are Maintain a good distance between the poles of
Further, the horizontal bottom part of the ring is interposed between the positive electrode and the case, and this part is pressurized, and has the same effect as the current collector of the conventional method (1).
しかし、この（２）の方法によれば、（１）の方法の欠
点であった放電中の内部抵抗の上昇は防止できたが、電
池形成後および放電途中の内部抵抗のばらつきが大きい
ことが新たな問題とな−た・本発明は、上記のような従
来の問題点全解決μ正極と電池ケースとの接触が良好で
、放電途中での内部抵抗の上昇もなく、内部抵抗のばら
つきが極めて小さい扁平形電池を提供することを目的と
する。However, according to method (2), although the increase in internal resistance during discharging, which was a drawback of method (1), could be prevented, there was a large variation in internal resistance after battery formation and during discharging. A new problem has arisen: The present invention solves all of the conventional problems as described above.The contact between the positive electrode and the battery case is good, there is no rise in internal resistance during discharge, and there is no variation in internal resistance. The purpose is to provide an extremely small flat battery.
問題点を解決するための手段
この問題全解決するために本発明は、断面り字状のリン
グ金円い、正極とケースとの間にこのリングの水平底部
全介在させた構造において、リングの内面に、例えばカ
ーボンのような導電性物質の層を配設したものである。Means for Solving the Problems In order to completely solve this problem, the present invention provides a ring with a circular cross-section and a structure in which the entire horizontal bottom of the ring is interposed between the positive electrode and the case. A layer of conductive material, such as carbon, is disposed on the inner surface.
作用 この構成によれば、リングと正極の接触が良好となる。action According to this configuration, good contact between the ring and the positive electrode is achieved.
従って、前記（２）の方法で問題となった電池形成後お
よび放電中の内部抵抗のばらつきがなくなり、（１）の
方法で問題となった放電中での内部抵抗の上昇という点
も解決され、電池性能の向上に大いに役立つものである
。Therefore, variations in internal resistance after battery formation and during discharging, which were a problem with method (2) above, are eliminated, and the problem of increase in internal resistance during discharge, which was a problem with method (1), is also solved. , which is of great help in improving battery performance.
実施例
以下本発明の実施例金、高さ２．０１ｆｆ、直径１２．
６ＭＩＩの扁平形電池を例にとり説明する。Examples Examples of the present invention Gold, height 2.01 ff, diameter 12.
This will be explained using a 6MII flat battery as an example.
第１図はリチウムー二酸化マンガン系の扁平形有機電解
液電池の構成図で、１はステンレス鋼製の正極端子を兼
ねるケース、２はステンレス鋼製の封口板、３は正極活
物質である二酸化マンガン。Figure 1 is a configuration diagram of a lithium-manganese dioxide-based flat organic electrolyte battery, where 1 is a stainless steel case that also serves as a positive electrode terminal, 2 is a stainless steel sealing plate, and 3 is manganese dioxide which is the positive electrode active material. .
導電材としてのカーボンおよび結着剤からなる正極合剤
、４は負極活物質であるリチウム、５はポリプロピレン
不織布からなるセパレータ、および含１％材、６はポリ
プロピレン製ガスケット、了は内面にカーボンを塗布し
て層を形成した正極リングであり、電解液１０は炭酸プ
ロピレンと１．２−ジメトキンエタンとの混合溶媒に、
過塩素酸リチウムを溶解させたものを使用している。4 is a positive electrode mixture consisting of carbon as a conductive material and a binder, 4 is lithium as a negative electrode active material, 5 is a separator made of polypropylene nonwoven fabric and a 1% containing material, 6 is a gasket made of polypropylene, and 4 is carbon on the inner surface. The positive electrode ring is coated to form a layer, and the electrolyte 10 is a mixed solvent of propylene carbonate and 1,2-dimethquinethane,
A solution of lithium perchlorate is used.
なお、この例では、正極活物質として二酸化マンガンを
用いたが、他に有機電解液電池の活物質として知られて
いる、フッ化黒鉛などのフッ化物。In this example, manganese dioxide was used as the positive electrode active material, but other fluorides such as fluorinated graphite, which are known as active materials for organic electrolyte batteries, may also be used.
酸化銅などの酸化物、硫化鉄などの硫化物などを導電材
、結着剤とともに混合成形したものは全て同様に適用で
きる。また、リング内面に本例ではガーボ／塗料を塗布
したが、例の導電性物質でも同様な効果が得られる。Any mixture of oxides such as copper oxide, sulfides such as iron sulfide, etc. together with a conductive material and a binder can be similarly applied. Moreover, although garbo/paint was applied to the inner surface of the ring in this example, the same effect can be obtained by using the conductive material in the example.
第２図に前記（１）の従来方法を用いた本実例と同寸法
のリチウムー二酸化マンガン系電池の２０°Ｃ３０にΩ
負荷の放電曲線イと、内部抵抗曲線口を示したが、内部
抵抗曲線口は放電途中に大きく上昇することがわかる。Figure 2 shows a lithium-manganese dioxide battery with the same dimensions as this example using the conventional method (1) above at 20°C30.
The load discharge curve A and the internal resistance curve are shown, and it can be seen that the internal resistance curve increases significantly during discharge.
次表に従来方法（２）および本発明による電池の電池形
成後（０％）および放電深度１０％、５０％。The following table shows the battery formation after battery formation (0%) and the depth of discharge of 10% and 50% for batteries according to the conventional method (2) and the present invention.
８０％のそれぞれにおける内部抵抗の値を示したが、本
発明による方法においては内部抵抗のばらつきが非常に
小さいことがわかる。The values of internal resistance at each 80% are shown, and it can be seen that the variation in internal resistance is very small in the method according to the present invention.
また第３図に本発明による構造を有した電池の放電曲線
イと内部抵抗曲線口を示す。Further, FIG. 3 shows the discharge curve A and the internal resistance curve A of a battery having the structure according to the present invention.
（以下余白）
発明の効果
以上の説明から明らかなように、断面り字状のリングの
水平底部を正極と電池ケースとの間に介在させた電池構
成において、リングの内面にカーボンなどの導電性物質
層を存在させ、正極とリングとの抵抗を良好にさせるこ
とにより、放電中の内部抵抗の上昇、ばらつきがない電
池を得ることができる。(Blank below) Effects of the Invention As is clear from the above explanation, in a battery configuration in which the horizontal bottom of a ring with a cross-sectional shape is interposed between the positive electrode and the battery case, conductive materials such as carbon are applied to the inner surface of the ring. By providing a material layer and improving the resistance between the positive electrode and the ring, it is possible to obtain a battery with no increase or variation in internal resistance during discharge.
第１図は本発明の実施例における扁平形電池の縦断面図
、第２図、第３図はその放電特性と内部抵抗特性を示す
図である。
１・・・・・・ケース、２・・・・・・封口板、３・・
・・・・正極、４・・・・・負極、６・・−・・・セパ
レータ、６・・・・・・ガスケット、７・・・・・・リ
ング、８・・・・・・導電性物質層。・代理人の氏名
弁理士 中 尾 敏 男 ほか１名第１図
゛８ｆＪ−ホ゛１FIG. 1 is a longitudinal sectional view of a flat battery according to an embodiment of the present invention, and FIGS. 2 and 3 are diagrams showing its discharge characteristics and internal resistance characteristics. 1... Case, 2... Sealing plate, 3...
... Positive electrode, 4 ... Negative electrode, 6 ... Separator, 6 ... Gasket, 7 ... Ring, 8 ... Conductivity material layer.・Name of agent
Patent attorney Toshio Nakao and one other person Figure 1゛8fJ-1
Claims (1)
、有機電解液および水平底部を正極と電池ケース内底面
との間に介在させた断面Ｌ字状のリングを有する有機電
解液電池であつて、前記正極に対向したリングの内面に
カーボンなどの導電性物質の層を形成した有機電解液電
池。An organic electrolyte battery having a ring having an L-shaped cross section with a negative electrode active material made of a light metal such as lithium, a positive electrode, an organic electrolyte, and a horizontal bottom interposed between the positive electrode and the inner bottom surface of the battery case, An organic electrolyte battery in which a layer of conductive material such as carbon is formed on the inner surface of the ring facing the positive electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60006352A JPS61165963A (en) | 1985-01-17 | 1985-01-17 | organic electrolyte battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60006352A JPS61165963A (en) | 1985-01-17 | 1985-01-17 | organic electrolyte battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61165963A true JPS61165963A (en) | 1986-07-26 |
Family
ID=11635973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60006352A Pending JPS61165963A (en) | 1985-01-17 | 1985-01-17 | organic electrolyte battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61165963A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2022076595A (en) * | 2020-11-10 | 2022-05-20 | マクセル株式会社 | Flat non-aqueous electrolyte battery |
-
1985
- 1985-01-17 JP JP60006352A patent/JPS61165963A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2022076595A (en) * | 2020-11-10 | 2022-05-20 | マクセル株式会社 | Flat non-aqueous electrolyte battery |
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