JPS63318072A - Cylindrical cell - Google Patents
Cylindrical cellInfo
- Publication number
- JPS63318072A JPS63318072A JP15368387A JP15368387A JPS63318072A JP S63318072 A JPS63318072 A JP S63318072A JP 15368387 A JP15368387 A JP 15368387A JP 15368387 A JP15368387 A JP 15368387A JP S63318072 A JPS63318072 A JP S63318072A
- Authority
- JP
- Japan
- Prior art keywords
- electrode group
- electrode
- sheet
- defects
- spot welding
- 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
- 238000004804 winding Methods 0.000 claims abstract description 11
- 238000003466 welding Methods 0.000 abstract description 7
- 238000003780 insertion Methods 0.000 abstract description 4
- 230000037431 insertion Effects 0.000 abstract description 4
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 abstract description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 2
- 239000004743 Polypropylene Substances 0.000 abstract description 2
- 229910052744 lithium Inorganic materials 0.000 abstract description 2
- -1 polypropylene Polymers 0.000 abstract description 2
- 229920001155 polypropylene Polymers 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract 4
- 230000002950 deficient Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 101100313164 Caenorhabditis elegans sea-1 gene Proteins 0.000 description 1
- 241000272201 Columbiformes Species 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000007789 sealing Methods 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
- H01M6/04—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
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、カメラ、バックアップ用電源および各種電気
機器電源に用いる円筒形電池に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a cylindrical battery used in cameras, backup power supplies, and various electrical equipment power supplies.
従来の技術
円筒形電池は、通常第１図に示す構造をしている。ここ
で、１はケース、２は封口板、３は負極シート、４は正
極シート、５はセパレータ、６は上部絶縁板、７は底部
絶縁板、８は負極集電体、９は正極集電体、１０は中心
空洞部である。この構造で特に、負極シート３、正極シ
ート４および２ ページ
セパレータ６は、第３図に示す方法により、渦巻き状の
電極群に構成される。第３図で３は負極シート、４は正
極シート、５はセパレータ、８は負極集電体、９は正極
集電体、１１は巻き芯である。BACKGROUND OF THE INVENTION A cylindrical battery typically has the structure shown in FIG. Here, 1 is a case, 2 is a sealing plate, 3 is a negative electrode sheet, 4 is a positive electrode sheet, 5 is a separator, 6 is an upper insulating plate, 7 is a bottom insulating plate, 8 is a negative electrode current collector, 9 is a positive electrode current collector The body 10 is the central cavity. Particularly in this structure, the negative electrode sheet 3, positive electrode sheet 4, and two-page separator 6 are formed into a spiral electrode group by the method shown in FIG. In FIG. 3, 3 is a negative electrode sheet, 4 is a positive electrode sheet, 5 is a separator, 8 is a negative electrode current collector, 9 is a positive electrode current collector, and 11 is a winding core.
電極群の構成は、スリットをもつ割りピン状の巻き芯１
１に、負極シート３、正極シー１−４およびセパレータ
５をはさみ込み、巻き芯１１を中心に回転させて渦巻き
状とする。The electrode group consists of a cotter pin-shaped winding core 1 with a slit.
1, the negative electrode sheet 3, the positive electrode sheet 1-4, and the separator 5 are sandwiched, and the winding core 11 is rotated to form a spiral shape.
発明が解決しようとする問題点
上記の方法により電極群の構成を行なうと、割りピン状
の巻き芯を用いているため、電極群の中心空洞部は「の
」字状の形状を呈し、第１図に示す負極集電体８とケー
ス１をスポット溶接するため電極棒を挿入する際、かみ
込み不良およびスポット溶接不良が発生するという問題
があった。Problems to be Solved by the Invention When the electrode group is constructed using the above method, since a split pin-shaped winding core is used, the central cavity of the electrode group takes on a ""-shaped shape. When inserting an electrode rod to spot weld the negative electrode current collector 8 and the case 1 shown in FIG. 1, there was a problem in that poor biting and spot welding occurred.
本発明は、このような問題点を解決するもので、品質の
向」−を目的とするものである。The present invention solves these problems and aims to improve quality.
問題点を解決するだめの手段
この問題点を解決するために本発明は、シート状の正極
および負極の間にセパレータを介在して３ ′・−７
全体を渦巻き状に巻回してなる電極群を備えた電池にお
いて、前記電極群の中心部に円筒状空洞部を有するよう
にしたものである。Means for Solving the Problem In order to solve this problem, the present invention provides an electrode group formed by spirally winding the entire 3'/-7 sheet with a separator interposed between the sheet-like positive and negative electrodes. The battery has a cylindrical cavity in the center of the electrode group.
作用
第２図に示す方法のように、それぞれが回転する２本の
細いピン状巻き芯１１と補助ピンを用いて渦巻状に巻回
することで電極群の中心部が円筒状空洞部と々す、第１
図に示す負極集電体８とケース１をスポット溶接するた
め、電極棒を挿入する際、かみ込み不良およびスポット
溶接不良が発生するという品質上の問題点が解決される
。Operation As shown in Fig. 2, by winding the electrode group in a spiral using two thin pin-shaped winding cores 11 and an auxiliary pin, each of which rotates, the center of the electrode group is brought into contact with a cylindrical cavity. 1st
Since the negative electrode current collector 8 and the case 1 shown in the figure are spot welded, the quality problems of poor biting and spot welding when inserting the electrode rod are solved.
実施例
二酸化マンガンからなる正極シート４、リチウムからな
る負極シート３および微孔性ポリプロピレンからなるセ
パレータ５を使用して、第２図に示すように、直径４賭
の巻き芯１１を中心に直径１．５ｍｆｆの補助ピン１２
を同期回転させて渦巻状に巻回する。この本発明の群構
成により、電極群の中心部に円筒状空洞部を有した電極
群が得られる。Example Using a positive electrode sheet 4 made of manganese dioxide, a negative electrode sheet 3 made of lithium, and a separator 5 made of microporous polypropylene, as shown in FIG. .5mff auxiliary pin 12
are rotated synchronously and wound into a spiral. With this group structure of the present invention, an electrode group having a cylindrical cavity in the center of the electrode group can be obtained.
この電極群および第３図に示すように、直径４關の割り
ピン状巻き芯１１を中心に回転させた従来の方法による
電極群を用いてそれぞれ１００個ずつ円筒形電池を製造
し、電極棒の挿入不良およびスポット溶接不良の状況を
調べだ結果を表１にまとめた。As shown in FIG. 3, 100 cylindrical batteries were manufactured using each electrode group by the conventional method, which was rotated around a split pin-shaped winding core 11 with a diameter of 4 mm. The situation of poor insertion and spot welding was investigated and the results are summarized in Table 1.
表 １
表１かられかるように、本発明による中心部に円筒状空
洞部を有した電極群を用いれば、電極棒の挿入不良およ
びスポット溶接不良が発生しないことがわかる。Table 1 As can be seen from Table 1, if the electrode group according to the present invention having a cylindrical cavity in the center is used, poor insertion of the electrode rod and faulty spot welding will not occur.
発明の効果
以上のように本発明によれば、電極群の挿入不良および
スポット溶接不良が発生しないという効果が得られる。Effects of the Invention As described above, according to the present invention, it is possible to obtain the effect that defective insertion of the electrode group and defective spot welding do not occur.
６１＼−７゛61\-7゛
第１図は代表的な円筒形電池の半断面図、第２図は本発
明による電極群の構成略図、第３図は従来の電極群の構
成略図である。
３・・・・・負極シート、４・・・・・正極シート、５
・・・・・・セパレータ、８・・・・・負極集電体、９
・・・・正極集電体、１１・・・・・・巻き芯、１２・
・・・・・補助ピン。
代理人の氏名 弁理士 中 尾 敏 男 はが１名第１
図
１θ
円鳩沿電′＞芭
第２図
／−−一ケース
？−−−封■版
３−−−負１社シート
４− 正みシー１＼
Ｓ−一−でバν−ダ
烹ｒ
第３図
シ
一３９５＝FIG. 1 is a half-sectional view of a typical cylindrical battery, FIG. 2 is a schematic diagram of the structure of an electrode group according to the present invention, and FIG. 3 is a schematic diagram of the structure of a conventional electrode group. 3... Negative electrode sheet, 4... Positive electrode sheet, 5
... Separator, 8 ... Negative electrode current collector, 9
... Positive electrode current collector, 11 ... Winding core, 12.
...Auxiliary pin. Name of agent: Patent attorney Toshio Nakao (1st person)
Figure 1 θ Round pigeon train '＞Ba 2nd figure/--One case? --- Seal plate 3 --- Negative 1 company sheet 4 - Positive sea 1 ＼ S-1- and bar ν-da 烹r Figure 3 Sheet 395=
Claims (1)
全体を渦巻き状に巻回してなる電極群を備えた電池であ
って、前記電極群の中心部に円筒状空洞部を有すること
を特徴とする円筒形電池。A battery comprising an electrode group formed by winding the entire spirally with a separator interposed between a sheet-like positive electrode and a negative electrode, characterized in that the electrode group has a cylindrical cavity in the center. A cylindrical battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15368387A JPS63318072A (en) | 1987-06-19 | 1987-06-19 | Cylindrical cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15368387A JPS63318072A (en) | 1987-06-19 | 1987-06-19 | Cylindrical cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63318072A true JPS63318072A (en) | 1988-12-26 |
Family
ID=15567878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15368387A Pending JPS63318072A (en) | 1987-06-19 | 1987-06-19 | Cylindrical cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63318072A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001071831A2 (en) * | 2000-03-16 | 2001-09-27 | The Gillette Company | Lithium cell |
-
1987
- 1987-06-19 JP JP15368387A patent/JPS63318072A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001071831A2 (en) * | 2000-03-16 | 2001-09-27 | The Gillette Company | Lithium cell |
| WO2001071831A3 (en) * | 2000-03-16 | 2002-06-27 | Gillette Co | Lithium cell |
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