JPS61281465A - Nonaqueous electrolyte battery - Google Patents
Nonaqueous electrolyte batteryInfo
- Publication number
- JPS61281465A JPS61281465A JP10775685A JP10775685A JPS61281465A JP S61281465 A JPS61281465 A JP S61281465A JP 10775685 A JP10775685 A JP 10775685A JP 10775685 A JP10775685 A JP 10775685A JP S61281465 A JPS61281465 A JP S61281465A
- Authority
- JP
- Japan
- Prior art keywords
- negative electrode
- plate
- electrode plate
- positive electrode
- strip
- 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
- H01M6/04—Cells with aqueous electrolyte
- H01M6/06—Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid
- H01M6/10—Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid with wound or folded electrodes
-
- 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
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】
（イ１ 産業上の利用分野
本発明は帯状のリチウム負極板と、二酸化マンガン、フ
ッ化炭素などを活物賀とする帯状正極板とをセパレータ
を介して巻回した渦巻電極体を備える非水電解液電池に
関するものである。[Detailed Description of the Invention] (1. Field of Industrial Application) The present invention consists of a strip-shaped lithium negative electrode plate and a strip-shaped positive electrode plate made of manganese dioxide, carbon fluoride, etc., which are wound together with a separator in between. The present invention relates to a non-aqueous electrolyte battery including a spiral electrode body.
ｃ口） 従来の技術
この種電池は例えば特公昭５３−５２８５１号公報（＝
て公知であり、その特異点の一つとして負極板にリチウ
ム板それ自身を用いることができるので負極板の集電に
際しては任意形状の負極集電体を負極板の任意部分に圧
着しこの負極集電体Ｃ：負極リード片を接続することで
行えるという点が挙げられる。c) Conventional technology This type of battery is disclosed in, for example, Japanese Patent Publication No. 53-52851 (=
One of its unique points is that the lithium plate itself can be used as the negative electrode plate, so when collecting current from the negative electrode plate, a negative electrode current collector of an arbitrary shape is crimped onto any part of the negative electrode plate. Current collector C: This can be done by connecting the negative electrode lead piece.
そして、内部短絡を抑制すること及びリチウム負極板自
身が導電性（：富むことを考慮すれば、第１図Ｃ：示す
ように負極集電体を削除しリチウム負極板の端部に負極
リード片を取付けるのみで充分（二集電が可能であるの
で好ましい。In order to suppress internal short circuits and to consider that the lithium negative electrode plate itself is highly conductive, the negative electrode current collector is removed as shown in Figure 1C, and a negative electrode lead piece is attached to the end of the lithium negative electrode plate. It is sufficient to simply attach the (preferably because two current collections are possible).
ところが、このようにリチウム負極板の端部に負極リー
ド片を取付けるのみの構造では１次遅のような問題があ
る。即ち１周知のようにリチウムは反応Ｃ二伴い消耗し
ていくものであシ、放電条件にもよるが例えば負極板が
中央部で切断されると負極リード片が存在しない分断部
分は未放電のまま残存すること（：なシ放電容量が低下
する。However, such a structure in which only the negative electrode lead piece is attached to the end of the lithium negative electrode plate has problems such as first-order lag. In other words, as is well known, lithium is consumed as a result of reaction C2.It depends on the discharge conditions, but for example, if a negative electrode plate is cut at the center, the divided part where no negative electrode lead piece is present will be undischarged. The discharge capacity will decrease.
ｒ） 発明が解決しようとする問題点本発明はリチウ
ム負極板の利用率の向上を計り放電容量の低下を抑制す
ることを目的とする。r) Problems to be Solved by the Invention The purpose of the present invention is to improve the utilization rate of a lithium negative electrode plate and to suppress a decrease in discharge capacity.
に）問題点を解決するための手段
本発明は正極板の巻回方向に帯状の凹溝を形設したこと
を特徴とする特
（ホ）作 用
本発明電池Ｃ＝よれば、正極板の巻回方向に帯状の凹溝
を形設したため、この帯状の凹溝に対向する負極板の部
分の放電が進まず未放電状態で残存することになり、負
極板の分断が阻止され負極板のほぼ全域が放電反応に関
与する。(v) Means for solving the problem The present invention is characterized in that a strip-shaped groove is formed in the winding direction of the positive electrode plate. Since the strip-shaped groove is formed in the winding direction, the discharge of the part of the negative electrode plate facing the strip-shaped groove does not proceed and remains in an undischarged state, preventing the separation of the negative electrode plate and causing the negative electrode plate to Almost the entire area is involved in the discharge reaction.
（へ）実施例 以下本発明の実施例を図面に基づき説明する。(f) Example Embodiments of the present invention will be described below based on the drawings.
（１１は二酸化マンガンを活物質とする正極ペーストを
正極集電体（２）に塗着、乾燥してなる帯状の正極板で
あり、中央部には活物質を取除いて露出した正極集電体
に正極リード片（３）が固着されていると共に１巻回方
向に帯状の凹溝（４）が形設されている。ここで帯状の
凹溝を作成する方法としては正極ペーストを正極集電体
に塗着する際に、正極板の巻回方向に沿うて凹溝が形成
されるような形状の塗着治具を用いるか或いは正極ペー
ストを塗着・乾燥後、凸ローラを掛けて形成することが
できる。尚、帯状の凹溝に対向する負極板の部分は未放
電で残存するため凹溝は小幅（二設計する必要がある。(11 is a strip-shaped positive electrode plate made by applying a positive electrode paste containing manganese dioxide as an active material to the positive electrode current collector (2) and drying it. A positive electrode lead piece (3) is fixed to the body, and a belt-shaped groove (4) is formed in the direction of one winding.The method for creating the belt-shaped groove is to collect the positive electrode paste into the positive electrode. When applying the paste to the electric body, use a applying jig shaped so that grooves are formed along the winding direction of the positive electrode plate, or apply the positive electrode paste and dry it, then apply it with a convex roller. However, since the portion of the negative electrode plate facing the band-shaped groove remains undischarged, the groove needs to be designed with a small width (two widths).
（５）はリチウム圧延板を所定寸法Ｃ二裁断してなる帯
状の負極板であって、その端部に負極リード片（６）が
固着されている。(5) is a strip-shaped negative electrode plate made by cutting a rolled lithium plate into two pieces having a predetermined size C, and a negative electrode lead piece (6) is fixed to the end of the negative electrode plate.
（７）は正負極板間（＝介挿されるセパレータであつて
正負極板と共に巻回して得た渦巻電極体を正極端子兼用
の外装缶（８）に収納し、正極リード片（３）を外装缶
（８）の内底面に固着すると共シュ１周縁部に絶縁バッ
キング（９）を配設せる負極端子兼用の封口蓋αＧの内
底面に負極リード片（６）を固着した後、外装缶（８）
の開口縁を絶縁バッキング（９）に締着して第２図Ｃ：
示す電池を得る。(7) is a separator inserted between the positive and negative electrode plates, and the spiral electrode body obtained by winding together with the positive and negative electrode plates is stored in an exterior can (8) that also serves as a positive electrode terminal, and the positive electrode lead piece (3) is After fixing the negative electrode lead piece (6) to the inner bottom surface of the sealing lid αG which also serves as a negative electrode terminal, an insulating backing (9) is arranged around the periphery of the outer can (8). (8)
Figure 2 C:
Obtain the battery shown.
第３図は本発明電池における発電要素の放電に伴う変化
を示し、（Ａｔ図の如く組み立てた発電要素は放電に伴
い（Ｂ１図の如くリチウム負極板（５）は消耗するが、
正極板（１）に形設した帯状の凹溝（４） Ｃ対向する
負極板（５）の巻回方向の帯状部分は未放電状態で残存
し、かかる帯状部分が集電体としての役目をなすのであ
る。Figure 3 shows the changes in the power generation element in the battery of the present invention as it is discharged (the power generation element assembled as shown in Figure At is discharged (as shown in Figure B1), although the lithium negative electrode plate (5) is consumed,
A strip-shaped groove (4) formed in the positive electrode plate (1) C. A strip-shaped portion in the winding direction of the negative electrode plate (5) that faces C remains in an undischarged state, and this strip-shaped portion plays a role as a current collector. It is eggplant.
（）ｌ 発明の効果
上述した如く１本発明電池Ｃ：よれば正極板の巻回方向
に帯状の凹溝を形設したので、負極板のうち上記の帯状
の凹＠を一対向する部分は未放電の状態で残存するため
、放電終了まで負極板は分断されることなくほぼ全域が
放電反応に関与することになり放電容量が低下すると云
った不都合はない。()l Effects of the Invention As mentioned above, according to the invention battery C: Since the strip-shaped groove is formed in the winding direction of the positive electrode plate, the portion of the negative electrode plate that faces the strip-shaped groove is Since the negative electrode plate remains in an undischarged state, almost the entire area of the negative electrode plate is involved in the discharge reaction without being divided until the end of discharge, so there is no problem such as a decrease in discharge capacity.
図面はいずれも本発明に係り、第１図は発電要素の斜視
図、第２図は電池の縦断面図、第３図は発電要素の放電
に伴う状態変化を示す図である。
（１）−・・正極板、 （２）−・正極集電体、 （
３１−・正極リード片、 （４）−・帯状の凹溝、
（５）−・・リチウム負極板、 （６）−・負極リ
ード片、 （７）−・セパレータ。
（８）−・外装缶、（９）−・絶縁バッキング、 ＜
ｌＩ−・封口蓋。The drawings all relate to the present invention; FIG. 1 is a perspective view of a power generation element, FIG. 2 is a vertical cross-sectional view of a battery, and FIG. 3 is a diagram showing state changes due to discharge of the power generation element. (1)--Positive electrode plate, (2)--Positive electrode current collector, (
31-・Positive electrode lead piece, (4)-・Strip-shaped groove,
(5)--Lithium negative electrode plate, (6)--Negative electrode lead piece, (7)--Separator. (8)-・Outer can, (9)-・Insulating backing, <
lI-・Sealing lid.
Claims (1)
レータを介して巻回してなる渦巻電極体を備えるもので
あって、前記正極板の巻回方向に帯状の凹溝を形設した
ことを特徴とする非水電解液電池。(1) A spiral electrode body formed by winding a strip-shaped lithium negative electrode plate and a strip-shaped positive electrode plate with a separator in between, and a strip-shaped groove is formed in the winding direction of the positive electrode plate. A non-aqueous electrolyte battery characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10775685A JPS61281465A (en) | 1985-05-20 | 1985-05-20 | Nonaqueous electrolyte battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10775685A JPS61281465A (en) | 1985-05-20 | 1985-05-20 | Nonaqueous electrolyte battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61281465A true JPS61281465A (en) | 1986-12-11 |
Family
ID=14467183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10775685A Pending JPS61281465A (en) | 1985-05-20 | 1985-05-20 | Nonaqueous electrolyte battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61281465A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5458993A (en) * | 1993-11-22 | 1995-10-17 | Matsushita Electric Industrial Co., Ltd. | Non-aqueous electrolyte battery and method of manufacturing same |
-
1985
- 1985-05-20 JP JP10775685A patent/JPS61281465A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5458993A (en) * | 1993-11-22 | 1995-10-17 | Matsushita Electric Industrial Co., Ltd. | Non-aqueous electrolyte battery and method of manufacturing same |
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