JPH0119741B2 - - Google Patents
Info
- Publication number
- JPH0119741B2 JPH0119741B2 JP58166120A JP16612083A JPH0119741B2 JP H0119741 B2 JPH0119741 B2 JP H0119741B2 JP 58166120 A JP58166120 A JP 58166120A JP 16612083 A JP16612083 A JP 16612083A JP H0119741 B2 JPH0119741 B2 JP H0119741B2
- Authority
- JP
- Japan
- Prior art keywords
- electrode plate
- negative electrode
- plate
- winding
- positive
- 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.)
- Expired
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
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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)
Description
【発明の詳細な説明】
(イ) 産業上の利用分野
本発明はリチウム板よりなる負極板と、正極板
とを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 in which a negative electrode plate made of a lithium plate and a positive electrode plate are wound with a separator in between.
(ロ) 従来技術
従来の製造方法を第１図乃至第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１にて被覆した正極板２と、一側面に集電板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
の端部を巻芯５の溝６に挿入すると共に負極板４
にセパレータ１で被覆された正極板２を添設し、
巻芯５を巻回する方法がある。(b) Prior Art A conventional manufacturing method will be described in detail with reference to FIGS. 1 to 3. First, a positive electrode plate 2 covered with a bag-shaped separator 1 as shown in FIG. Current collector plate 3
In the first method, as shown in FIG.
Insert the end of the negative electrode plate 4 into the groove 6 of the winding core 5.
A positive electrode plate 2 covered with a separator 1 is attached to the
There is a method of winding the winding core 5.
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
ムは他の金属と接触すると固着してしまうという
性質を有するため、第２図の方法で巻取つた場合
巻芯５とリチウム負極板４とが固着し、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 when it comes into contact with other metals, when it is wound using the method shown in Fig. 2, the winding core 5 and the lithium negative electrode plate 4 stick to each other, and after the electrode plate is wound, the winding does not occur. It becomes difficult or impossible to pull out the core 5.
第２の方法としては第３図に示す如くリチウム
負極板４と袋状セパレータ１にて被覆された正極
板２との先端部を揃え、巻芯５の溝６に同時に挿
入し、巻芯５を巻回する方法がある。 As a second method, as shown in FIG. 3, the leading ends of the lithium negative electrode plate 4 and the positive electrode plate 2 covered with the bag-shaped separator 1 are aligned, and the ends are simultaneously inserted into the groove 6 of the winding core 5. There is a way to wind it.
この場合、一般に正極板２は極板芯体に二酸化
マンガン、フツ化炭素などの活物質を塗着、乾燥
してなるものであり、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す懸念があ
る。又巻芯５の溝６に非自己支持性のセパレータ
１を挿入する作業は困難を伴う。更に巻始部にお
いて正負極板の先端部に若干のずれがあると巻終
りに近づくにつれずれが大きくなり巻取が不可能
となるため正負極板の先端部の揃えは高精度が要
求される。 In this case, the positive electrode plate 2 is generally made by applying an active material such as manganese dioxide or carbon fluoride to the electrode plate core and drying it, and the active material falls off especially at the beginning of the winding, which has a small radius, causing internal damage. There is a concern that it may cause a short circuit. Furthermore, it is difficult to insert the non-self-supporting separator 1 into the groove 6 of the winding core 5. Furthermore, if there is a slight misalignment of the tips of the positive and negative electrode plates at the beginning of winding, the misalignment increases as the winding approaches the end, making winding impossible, so high precision is required in aligning the tips of the positive and negative electrode plates. .
(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
本発明は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にある。(d) Structure of the Invention The present invention provides a positive electrode plate in which one end of a negative 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. The method of manufacturing a spiral electrode body is characterized in that the end portions are clamped via a separator, and the clamping portions are inserted into grooves 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をセパレータ
を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、又セパレータを含む巻始部に
おける強度が向上し巻芯の溝への挿入が容易とな
り、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を伴う正極板の崩れが抑制
されるという利点を奏するものである。 According to the present invention, the extension of the current collector plate crimped to the lithium negative electrode plate is folded back and the end of the positive electrode plate is sandwiched between the separators, so that the lithium negative electrode plate and the winding core do not come into contact with each other, and the separator The strength at the beginning of the winding, including the core, is improved, making it easier to insert the winding core into the groove.Furthermore, the end of the positive electrode plate is protected by a current collector plate, which prevents the positive electrode plate from collapsing due to falling of the positive electrode active material. This has the advantage of being
(ホ) 実施例
以下本発明法の一実施例を第４図乃至第６図を
参照して詳述する。(E) Example An example of the method of the present invention will be described in detail below with reference to FIGS. 4 to 6.
第４図は正負極板の斜視図を示し、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１
１が圧着され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１１′が形成されている。正
極板１２は二酸化マンガンを主活物質とするもの
であつて両端が開口した袋状セパレータ１３にて
被覆されていると共にその巻始端は若干ｌだけセ
パレータ１３内に入り込んでいる。 FIG. 4 shows a perspective view of the positive and negative electrode plates, and shows the negative electrode plate 10.
is made of a lithium plate and has a negative electrode current collector plate 1 on one side.
1 is crimped and one end of the current collector plate is extended from the negative electrode plate to form an extension 11'. The positive electrode plate 12 has manganese dioxide as its main active material, and is covered with a bag-shaped separator 13 which is open at both ends, and the winding start end of the positive electrode plate 12 is inserted into the separator 13 by a distance of 1.
次にこれらの正負極板を積重ねてのち第５図に
示す如く集電板１１の延長部１１′を折返し正極
板１２の端部をセパレータ１３を介して挾持す
る。この時点で電極群の巻始部は強度が向上する
と共に袋状セパレータ１３の巻始端余剰部が集電
板１１の延長部１１′で挾圧され開口部が閉塞さ
れるため正極板が多少崩れても活物質がこぼれ出
ることが阻止される。 Next, after stacking these positive and negative electrode plates, as shown in FIG. At this point, the strength of the winding start part of the electrode group is improved, and the surplus part of the winding start end of the bag-shaped separator 13 is pinched by the extension part 11' of the current collecting plate 11, and the opening is closed, so that the positive electrode plate collapses to some extent. The active material is prevented from spilling out even if the active material is removed.
そして、その後第６図に示す如く電極群先端の
挾持部を巻芯１４の溝１５に挿入し巻芯１４を巻
回して渦巻電極体を得るのである。 Thereafter, as shown in FIG. 6, the clamping portion at the tip of the electrode group is inserted into the groove 15 of the winding core 14, and the winding core 14 is wound to obtain a spiral electrode body.
(ヘ) 発明の効果
上述した如く、本発明による渦巻電極体の製造
方法は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
業終了後巻芯を容易に引抜くことができ、又非自
己支持性のセパレータを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を伴う正極板の崩れを抑
制しうるという種々の利点を奏する。(f) Effects of the invention As described above, the method for manufacturing a spiral electrode body according to the present invention includes extending one end of the negative electrode current collector plate crimped to one side of the negative electrode plate made of a lithium plate from the negative electrode plate,
The extension part is folded back and the end of the positive electrode plate attached to the negative electrode plate is clamped via a separator, and the clamping part is inserted into the groove of the winding core and wound. The winding core can be easily pulled out after winding without contact with the winding core, and since a non-self-supporting separator is integrated with the electrode group, the strength of the winding start is improved and the winding core is Insertion into the groove becomes easier. Furthermore, since the end portion of the positive electrode plate is protected by the current collector plate, there are various advantages in that collapse of the positive electrode plate accompanied by falling off of the positive electrode active material can be suppressed.
第１図乃至第３図は従来例に係り、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図は本発明
に係り、第４図は正負極板の斜視図、第５図は正
負極板を積重ねた状態図、第６図は巻回工程を示
す図である。
１０……リチウム負極板、１１……負極集電
板、１１′……延長部、１２……正極板、１３…
…袋状セパレータ、１４……巻芯、１５……溝。
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 relate to the present invention; FIG. 4 is a perspective view of the positive and negative electrode plates, FIG. 5 is a diagram of the stacked positive and negative electrode plates, and FIG. 6 is a diagram showing the winding process. DESCRIPTION OF SYMBOLS 10...Lithium negative electrode plate, 11...Negative electrode current collector plate, 11'...Extension part, 12...Positive electrode plate, 13...
... Bag-shaped separator, 14 ... Winding core, 15 ... Groove.
Claims (1)
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。1. 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 the end of the positive electrode plate attached to the negative electrode plate is sandwiched via a separator. A method of manufacturing a spiral electrode body, comprising: inserting the holding portion into a groove of a winding core and winding the core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58166120A JPS6059667A (en) | 1983-09-08 | 1983-09-08 | Manufacturing method of spiral electrode body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58166120A JPS6059667A (en) | 1983-09-08 | 1983-09-08 | Manufacturing method of spiral electrode body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6059667A JPS6059667A (en) | 1985-04-06 |
| JPH0119741B2 true JPH0119741B2 (en) | 1989-04-12 |
Family
ID=15825398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58166120A Granted JPS6059667A (en) | 1983-09-08 | 1983-09-08 | Manufacturing method of spiral electrode body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6059667A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62147661A (en) * | 1985-12-23 | 1987-07-01 | Sanyo Electric Co Ltd | Manufacturing method of spiral electrode body |
| JPH0539585Y2 (en) * | 1986-12-22 | 1993-10-07 | ||
| KR100731452B1 (en) * | 2005-12-29 | 2007-06-21 | 삼성에스디아이 주식회사 | Pole plate winding device and winding method of cylindrical battery |
| WO2012105362A1 (en) * | 2011-02-03 | 2012-08-09 | 三洋電機株式会社 | Nonaqueous electrolyte secondary battery |
-
1983
- 1983-09-08 JP JP58166120A patent/JPS6059667A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6059667A (en) | 1985-04-06 |
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