JPS6059667A - Manufacture of wound electrode - Google Patents
Manufacture of wound electrodeInfo
- Publication number
- JPS6059667A JPS6059667A JP16612083A JP16612083A JPS6059667A JP S6059667 A JPS6059667 A JP S6059667A JP 16612083 A JP16612083 A JP 16612083A JP 16612083 A JP16612083 A JP 16612083A JP S6059667 A JPS6059667 A JP S6059667A
- Authority
- JP
- Japan
- Prior art keywords
- plate
- winding
- negative electrode
- electrode plate
- separator
- 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.)
- Granted
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
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) 産業上の利用分野
本発明にリチウム板よりなる負極板と、正極板とtセパ
レータを介して巻回せる渦巻電極体の製造方法に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to a method for manufacturing a spiral electrode body which can be wound around a negative electrode plate made of a lithium plate, a positive electrode plate, and a T-separator.
(ロ) 従来技術
従来の製造方法TX:m %図乃至箱3図を参照して詳
述するに、先づ第1図に示す如き袋状セパレータil+
にて被覆しに正極板(21と、−側面に集電版(3)を
圧着したリチウム負極板(4)とを準備し、第1の方法
としては第2図に示す如くリチウム負極板(4)の端部
全巻芯(5)の溝(6)に挿入すると共に負極板(41
にセパレータ11.1で被覆された正極板(2)を添設
し、巻芯15)乞巻回する方法がある。(b) Prior art Conventional manufacturing method TX: m % To explain in detail with reference to Figure 3 to Box 3, first, a bag-shaped separator il+ as shown in Figure 1 is manufactured.
The first method involves preparing a positive electrode plate (21) coated with a lithium negative electrode plate (21) and a lithium negative electrode plate (4) with a current collector plate (3) crimped on the negative side. 4) into the groove (6) of the core (5) and insert the negative electrode plate (41) into the groove (6) of the core (5).
There is a method in which a positive electrode plate (2) coated with a separator 11.1 is attached to the core 11.1, and the winding core 15) is wound.
この場合、負極板(4)がリチウム板よりなるが故に特
有の問題があることが判明した。即ちリチウムに他の金
属と接触すると固着してしまうという性質乞有するため
、第2図の方法で巻敗った場合巻芯(5)とリチウム負
極板(4)とが固着L+極板の巻取後、巻芯(5)の引
抜きが困難或いは不可能となる。In this case, it has been found that there is a particular problem because the negative electrode plate (4) is made of a lithium plate. In other words, since lithium has the property of sticking to other metals when it comes into contact with other metals, if the winding fails using the method shown in Figure 2, the winding core (5) and the lithium negative electrode plate (4) will stick together, resulting in the winding of the L+ electrode plate. After removal, it becomes difficult or impossible to pull out the core (5).
第2の方法としては第6図に示す如くリチウム負極板(
4)と袋状セパレータ11)(二て被覆されに正極板(
2)との先端部を揃え、巻芯(5)の溝(6)に同時に
挿入し1巻芯(51を巻回する方法がある。The second method is to use a lithium negative electrode plate (
4) and the bag-shaped separator 11) (covered with the positive electrode plate (
There is a method of aligning the tip ends with the core (5) and simultaneously inserting the core (5) into the groove (6) and winding the core (51).
この場合、一般に正極板12)正極板芯体に二酸化マン
ガン、フッ化炭素などの活物質乞塗着、乾燥してなるも
のであをれ特に曲径の小さい巻始部において活物質が脱
落し内部短絡を引起丁懸念がある。又巻芯(5)の溝(
6)に非自己支持性のセパレータIll X(1′挿入
する作業に困難ン伴う。史に巻始や部において正負極叛
の先端部に若干のす几があると巻終りに近づくにつれず
れが大きくなり券代が不可能となるため正負極板の先端
部の揃えは高′n度が要求される。In this case, the positive electrode plate 12) is generally coated with an active material such as manganese dioxide or carbon fluoride on the positive electrode plate core and dried, causing the active material to fall off, especially at the beginning of the winding, which has a small radius. There is a concern that it may cause an internal short circuit. Also, the groove of the winding core (5) (
6) The work of inserting a non-self-supporting separator Ill As the size increases, the ticket cost becomes impossible, so the tips of the positive and negative electrode plates must be aligned by a high degree.
(ハ) 発明の目的
本発明は従来法における上記問題点を解決することを目
的とする。(c) Purpose of the invention The purpose of the present invention is to solve the above-mentioned problems in the conventional method.
(ニ) 発明の構成
本発明にリチウム板よりなる負極板の一側面に圧着した
負極集電板の一端を負極板より延長せしめ、該延長部を
折返して前記負極板に添設せる正極板の端部ンセバレー
タを介して挾持し、該挾持部を巻芯の溝に挿入して巻回
すること乞特徴とする渦巻電極体の製造方法にある。(d) Structure of the Invention The present invention provides a positive electrode plate in which one end of a negative electrode current collector plate crimped to one side of a negative electrode plate made of a lithium plate is extended from the negative electrode plate, and the extended portion is folded back and attached to the negative electrode plate. A method of manufacturing a spiral electrode body is characterized in that the spiral electrode body is clamped via an end confinerator, and the clamping part is inserted into a groove of a winding core and wound.
本発明によればリチウム負極板に圧着した集電板の延長
部を折返して正極板の端部tセパレータビ介して挾持さ
せているので、リチウム負極板と巻芯とが接触せず、又
セパレータ2含む巻始部における強度が向上し巻芯の溝
への挿入が容易どなり一更に正極板の端部が集電板で保
護さ几ているため正極活物質の脱落ビ伴う正極板の崩れ
が抑制されるという利点ン奏するものである。According to the present invention, the extension of the current collector plate crimped onto the lithium negative electrode plate is folded back and held between the separator tabs at the end of the positive electrode plate, so that the lithium negative electrode plate and the winding core do not come into contact with each other, and the separator 2.The strength at the beginning of the winding is improved, making it easier to insert the winding core into the groove.Furthermore, since the end of the positive electrode plate is protected by a current collector plate, the positive electrode active material does not fall off and the positive electrode plate collapses. This has the advantage of being suppressed.
(ホ)実施例
以下本発明法の一実九例乞第4図乃至第2図を参照して
詳述する。(E) Examples Hereinafter, nine examples of the method of the present invention will be described in detail with reference to FIGS. 4 to 2.
第4図は正負極板の偵視図ン示し、負極板(10)はリ
チウム板よりなりその一側面に負極集電板f+ 117
5E圧着さルていると共に集電板の一端は負極板より延
長され延長部Uが形成されている。正極板(+21に二
酸化マンガン7王活物質とするものであって両端が開口
した袋状セパレータt131にて被覆さnていると共に
その巻始端は若千lだけセパレータ[131内に入り込
んでいる。FIG. 4 shows a perspective view of the positive and negative electrode plates, where the negative electrode plate (10) is made of a lithium plate and has a negative electrode current collector plate f+ 117 on one side thereof.
5E is crimped and one end of the current collector plate is extended from the negative electrode plate to form an extension portion U. The positive electrode plate (+21) is made of manganese dioxide 7 active material and is covered with a bag-shaped separator T131 with both ends open, and the starting end of the positive electrode plate enters into the separator [131] by about 1,000 liters.
次にこれらの正負極板を積重ねてのち45図に示す如く
集電板u11の延長部(lB乞折返し正イヘ板(【21
の端部Zセパレータt13Y弁して挾?#する。この時
点で電極群の巻始部に強度が向上すると共に袋状セパレ
ータ[131の巻始端余剰部が集電数的Jの延長部(I
I)で挾圧さル開ロ部が閉基さ肚るため正極板が多少崩
れても活物質がこは几出ることが阻止される。Next, after stacking these positive and negative electrode plates, as shown in FIG.
The end of Z separator T13Y valve and clamp? #do. At this point, the strength of the winding start of the electrode group is improved, and the surplus part of the winding start of the bag-shaped separator [131] is an extension of the current collecting number J (I
Since the clamping pressure in I) closes the opening part, the active material is prevented from coming out even if the positive electrode plate collapses to some extent.
そして、その後第6図に示すμ目く電極群先端の挾持部
ビ巻芯Iの溝a9に挿入し巻芯[4を巻回して渦巻電極
体ビ得るのである。Thereafter, the clamping portion at the tip of the electrode group shown in FIG.
(へ) 発明の効果
上述しに如く、本発明にょる渦巻電極体の製造方法[I
Jチウム板よりなる負極板の一側面に圧着した負極集電
板の一端を負極板より延長せしめ、該延長部全折返して
前記負極板に添設ぜる正極板の端部ZセパレータZ介し
て挾持し、該挾持部ン巻芯の溝に挿入して巻回するもの
であるので、リチウム負極板と巻芯とが接触することな
く巻回作業終了後巻芯ン容易に引抜くことができ、又非
自己支持性のセパレータZ電極群と一体化したので巻始
部の強度が向上し巻芯の溝への挿入が容易となる。更に
正極板の端部が集電板で保護されているため正極活物質
の脱落ン伴う正極板の崩れを抑制しうるという種々の利
点ビ奏する。(f) Effects of the invention As mentioned above, the method for manufacturing a spiral electrode body according to the present invention [I
One end of the negative electrode current collector plate crimped to one side of the negative electrode plate made of J tium plate is extended from the negative electrode plate, and the extended portion is completely folded back and attached to the negative electrode plate through the end Z of the positive electrode plate and the separator Z. Since the lithium negative electrode plate and the winding core do not come into contact with each other, the core can be easily pulled out after the winding operation is completed. Also, since it is integrated with the non-self-supporting separator Z electrode group, the strength of the winding start part is improved and the winding core can be easily inserted into the groove. Furthermore, since the end portion of the positive electrode plate is protected by the current collector plate, various advantages such as being able to suppress collapse of the positive electrode plate due to falling off of the positive electrode active material are achieved.
第1図乃至第3図に従来例に係り、第1図は正負極板の
斜視図−第2図及び第3図は従来の巻回工程を示す図で
ある。第4図乃至第6図に本発明に係り、第4図は正負
極板の斜視図−第5図は正負極板乞積重ねた状態図、第
6図に巻回工程を示す図である。
11(ト・・リチウム負極板、11]l・・・負極集′
生板、 un・・・延長部、(1カ・・・正極板、u3
・・・袋状セパレータ、(1枦・・巻芯、115I・・
・溝。
第1図
2
第2図 第3図
第4図
第5図
第6図
1で
/FIGS. 1 to 3 relate to a conventional example, with FIG. 1 being a perspective view of positive and negative electrode plates, and FIGS. 2 and 3 showing a conventional winding process. 4 to 6 are a perspective view of the positive and negative electrode plates, FIG. 5 is a perspective view of the positive and negative electrode plates, FIG. 5 is a diagram showing the state in which the positive and negative electrode plates are stacked, and FIG. 6 is a diagram showing the winding process. 11 (t... Lithium negative electrode plate, 11]l... Negative electrode collection'
Raw board, un...extension part, (1 piece...positive electrode plate, u3
...Bag-shaped separator, (1 pole...Winling core, 115I...
·groove. Figure 1 Figure 2 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 1 /
Claims (1)
集′屯板の−@χ負極板極板延長せしめ、該延長部ン折
返して前記負極板に添設ぜる正極板の端部をセパレータ
を介して挾持し、該挾持部を巻芯の溝に挿入して巻回す
ることを特徴とする渦巻電極体の製造方法。■ A -@χ negative electrode plate of a negative electrode collection plate crimped to one side of a negative electrode plate made of a lithium plate, the extended portion is folded back, and the end of the positive electrode plate attached to the negative electrode plate is attached to the separator. 1. A method for manufacturing a spiral electrode body, comprising the steps of: clamping the electrode body through the core, inserting the clamping part into a groove of a winding core, and winding the core.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16612083A JPS6059667A (en) | 1983-09-08 | 1983-09-08 | Manufacture of wound electrode |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16612083A JPS6059667A (en) | 1983-09-08 | 1983-09-08 | Manufacture of wound electrode |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6059667A true JPS6059667A (en) | 1985-04-06 |
JPH0119741B2 JPH0119741B2 (en) | 1989-04-12 |
Family
ID=15825398
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16612083A Granted JPS6059667A (en) | 1983-09-08 | 1983-09-08 | Manufacture of wound electrode |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6059667A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2592228A1 (en) * | 1985-12-23 | 1987-06-26 | Sanyo Electric Co | METHOD FOR MANUFACTURING A SET OF SPIRAL ELECTRODES FOR A CELL OR ACCUMULATOR |
JPS63101462U (en) * | 1986-12-22 | 1988-07-01 | ||
US20070180686A1 (en) * | 2005-12-29 | 2007-08-09 | Samsung Sdi Co., Ltd. | Electrode plate winding device and rolling method for cylinder type battery |
US20130316207A1 (en) * | 2011-02-03 | 2013-11-28 | Sanyo Electric Co., Ltd. | Nonaqueous electrolyte secondary battery |
-
1983
- 1983-09-08 JP JP16612083A patent/JPS6059667A/en active Granted
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2592228A1 (en) * | 1985-12-23 | 1987-06-26 | Sanyo Electric Co | METHOD FOR MANUFACTURING A SET OF SPIRAL ELECTRODES FOR A CELL OR ACCUMULATOR |
JPS63101462U (en) * | 1986-12-22 | 1988-07-01 | ||
JPH0539585Y2 (en) * | 1986-12-22 | 1993-10-07 | ||
US20070180686A1 (en) * | 2005-12-29 | 2007-08-09 | Samsung Sdi Co., Ltd. | Electrode plate winding device and rolling method for cylinder type battery |
US9209478B2 (en) * | 2005-12-29 | 2015-12-08 | Samsung Sdi Co., Ltd. | Elongated mandrel for a winding device |
US20130316207A1 (en) * | 2011-02-03 | 2013-11-28 | Sanyo Electric Co., Ltd. | Nonaqueous electrolyte secondary battery |
US9350042B2 (en) * | 2011-02-03 | 2016-05-24 | Sanyo Electric Co., Ltd. | Nonaqueous electrolyte secondary battery |
Also Published As
Publication number | Publication date |
---|---|
JPH0119741B2 (en) | 1989-04-12 |
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