JPH0351065B2 - - Google Patents
Info
- Publication number
- JPH0351065B2 JPH0351065B2 JP56165211A JP16521181A JPH0351065B2 JP H0351065 B2 JPH0351065 B2 JP H0351065B2 JP 56165211 A JP56165211 A JP 56165211A JP 16521181 A JP16521181 A JP 16521181A JP H0351065 B2 JPH0351065 B2 JP H0351065B2
- Authority
- JP
- Japan
- Prior art keywords
- separator
- winding core
- winding
- hole
- trace space
- 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 - Lifetime
Links
- 238000004804 winding Methods 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000011162 core material Substances 0.000 description 21
- 238000010586 diagram Methods 0.000 description 9
- 238000003466 welding Methods 0.000 description 8
- 239000002184 metal Substances 0.000 description 4
- 101700004678 SLIT3 Proteins 0.000 description 2
- 102100027339 Slit homolog 3 protein Human genes 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 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
-
- 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
Description
【発明の詳細な説明】
本発明は、渦巻電極体の製造法に関し、帯状の
正、負極板間にセパレータを介在させ、セパレー
タ端部を巻き始め部として巻芯により全体を渦巻
状に巻回する工程と、巻芯跡空間にこれを分割す
るように残存するセパレータ端部を透孔拡張棒に
より巻芯跡空間の内周壁方向に変位させる工程と
を有する方法を特徴とする。その目的とするとこ
ろは正、負いずれか一方の極性を有する電極端子
を金属製電池容器の内底部に電気的に接続するに
当り、スポツト溶接用電極棒の挿入を容易にし、
スポツト溶接の改善を図ることにある。Detailed Description of the Invention The present invention relates to a method for manufacturing a spiral electrode body, in which a separator is interposed between strip-shaped positive and negative electrode plates, and the entire body is spirally wound around a winding core with the end of the separator as the winding start point. and a step of displacing the end portion of the separator remaining in the core trace space in the direction of the inner circumferential wall of the core trace space using a through-hole expanding rod so as to divide the core trace space. The purpose of this is to facilitate the insertion of a spot welding electrode when electrically connecting an electrode terminal with either positive or negative polarity to the inner bottom of a metal battery container.
The purpose is to improve spot welding.
従来の渦巻電極体巻回用の巻芯棒は、第１図Ａ
で示すように、巻芯棒１の端面２にこと端面２の
中心部を通る縦方向のスリツト３が形成されてい
る。 A conventional winding core rod for winding a spiral electrode body is shown in Fig. 1A.
As shown, a vertical slit 3 is formed in the end surface 2 of the winding core rod 1, passing through the center of the end surface 2.
このスリツト３にセパレータ４（図示していな
いがこのセパレータ４は正、負極板間に挾持され
ている）の端部５を挾持し、巻芯棒１を矢印方向
に回転し、セパレータおよび極板の全体を巻回し
て渦巻電極体を作り、巻芯棒１を引き抜く。 The end portion 5 of the separator 4 (not shown, but this separator 4 is sandwiched between the positive and negative electrode plates) is held in this slit 3, and the winding core rod 1 is rotated in the direction of the arrow, and the separator and the electrode plates are The whole is wound to form a spiral electrode body, and the wound core rod 1 is pulled out.
巻回後の状態は、第１図Ｂで示すように渦巻電
極体の中心部にセパレータ４により形成されてい
る巻芯跡空間（透孔）７の中心部分に空間を分割
するようにセパレータ４の端部５が残存する。こ
のことにより第４図に示すように、一方の極板、
例えばCd（OH）2よりなる負極板８の芯材部分９
に設けられた負極リード板１０を、負極端子を兼
ねる金属容器１１の内底面にスポツト溶接するた
めの電極棒１２の対電極１３の挿入を阻害し、ス
ポツト溶接作業を煩雑にしていた。 After winding, as shown in FIG. 1B, the separator 4 is moved so as to divide the space into the center of the winding core trace space (through hole) 7 formed by the separator 4 at the center of the spiral electrode body. The end portion 5 of remains. As a result, as shown in FIG.
For example, the core material portion 9 of the negative electrode plate 8 made of Cd(OH) 2
This obstructs insertion of the counter electrode 13 of the electrode rod 12 for spot welding the negative electrode lead plate 10 provided on the inner bottom surface of the metal container 11 which also serves as a negative electrode terminal, making the spot welding work complicated.
本発明ではこのような問題を解決するものであ
る。具体的には第１図Ｂで示す渦巻電極体の中心
部の透孔７にこれを分割するよう残存しているセ
パレータ４の端部５を透孔７の内周壁面にそわ
し、固定するために第２図Ａの様に先の鋭利な加
熱された透孔は拡張棒１４を第２図Ｂの様に透孔
７に挿入することを特徴とする。好ましくはこの
加熱された透孔拡張棒１４の温度をセパレータ材
質に応じて50〜100℃に保持して挿入する。すな
わち、透孔拡張棒１４の温度を50〜100℃の間に
保つて挿入すると、第１図Ｂに示すセパレータ折
り曲げ部分ｅより完全に左右いずれかに折れ曲
り、透孔７ほ内周壁にそつたものにできる。温度
が50℃以下ではセパレータ４の端部５に弾性が残
り、第３図Ｂに示す様にはならずに第３図Ａの状
態にもどつてしまう。一方、透孔拡張棒１４を
100℃以上の温度にすると、加熱されすぎてセパ
レータの損焼が発生する。巻芯跡空間である透孔
７に第２図Ｂの様に透孔拡張棒１４を挿入するこ
とにより透孔７内に残存しているセパレータ４の
端部５を、渦巻電極体の中心に形成される巻芯跡
空間の内周壁にそわせるこができ、上述した弊害
を防止できる。すなわち、第４図に示す対電極１
３は透孔７への挿入に際し、セパレータ４の端部
５により、その挿入を阻害されることなく、スポ
ツト溶接用電極棒１２の対電極１３を渦巻電極体
の中央透孔７に良好に挿入することができる。こ
れにより、渦巻電極体の負極リード板１０の負極
端子を兼ねる金属容器１１の内底面に対するスポ
ツト溶接作業用工程を円滑に行なわせることが可
能となる。 The present invention is intended to solve such problems. Specifically, the end portion 5 of the remaining separator 4 that divides the through hole 7 at the center of the spiral electrode body shown in FIG. 1B is placed against the inner peripheral wall surface of the through hole 7 and fixed. For this purpose, a heated through hole with a sharp tip as shown in FIG. 2A is characterized in that the expansion rod 14 is inserted into the through hole 7 as shown in FIG. 2B. Preferably, the heated through-hole expanding rod 14 is inserted while maintaining the temperature at 50 to 100° C. depending on the separator material. That is, when the through-hole expansion rod 14 is inserted while maintaining the temperature between 50 and 100 degrees Celsius, it will completely bend to either the left or right from the separator bending part e shown in FIG. It can be made into something. When the temperature is below 50° C., elasticity remains in the end portion 5 of the separator 4, and the separator 4 returns to the state shown in FIG. 3A instead of as shown in FIG. 3B. On the other hand, the through hole expansion rod 14
If the temperature exceeds 100℃, the separator will burn out due to excessive heating. By inserting the hole expansion rod 14 into the hole 7, which is the winding core trace space, as shown in FIG. The winding core can be aligned with the inner circumferential wall of the formed winding core trace space, and the above-mentioned disadvantages can be prevented. That is, the counter electrode 1 shown in FIG.
3, when inserting into the through hole 7, the counter electrode 13 of the spot welding electrode rod 12 is successfully inserted into the central through hole 7 of the spiral electrode body without being obstructed by the end 5 of the separator 4. can do. This makes it possible to smoothly carry out the spot welding process on the inner bottom surface of the metal container 11 which also serves as the negative terminal of the negative lead plate 10 of the spiral electrode body.
なお、第４図において６は正極板、１５は正極
板６の下部と金属容器１１との間を絶縁する絶縁
板である。 In addition, in FIG. 4, 6 is a positive electrode plate, and 15 is an insulating plate that insulates between the lower part of the positive electrode plate 6 and the metal container 11.
上述の如く、本発明は電池内における渦巻電極
体のリード板と電池容器とを電気的に当接する溶
接作業工程の高率化を達成せしめる上において、
価値の高い渦巻電極体の製造法を提供するもので
ある。 As described above, the present invention improves the efficiency of the welding process for electrically contacting the lead plate of the spiral electrode body and the battery container in a battery, and also includes the following:
The present invention provides a method for manufacturing a highly valuable spiral electrode body.
第１図Ａはセパレータ端部を巻き始め部として
巻芯により巻回する際の斜視図、第１図Ｂは渦巻
電極体の巻芯跡空間を示す図、第２図Ａは本発明
の実施例における巻芯跡空間にこれを分割するよ
うに残存するセパレータ端部を透孔拡張棒により
変位拡張する際の説明図、第２図Ｂは変位拡張途
中の説明図、第３図Ａは変位拡張前の巻芯跡空間
を示す図、第３図Ｂはセパレータ端部を巻芯跡空
間の内周壁方向に変位拡張した説明図、第４図は
一方の極板リードを巻芯跡空間を利用して電池ケ
ース内底面にスポツト溶接する際の説明図であ
る。
１……巻芯棒、３……スリツト、４……セパレ
ータ、５……セパレータ端部、６……正極板、７
……巻芯跡空間（透孔）、８……負極、１４……
透孔拡張棒。
FIG. 1A is a perspective view of winding with a core with the end of the separator as the winding start point, FIG. 1B is a diagram showing the core trace space of the spiral electrode body, and FIG. 2A is a diagram showing the implementation of the present invention. An explanatory diagram when displacing and expanding the separator end portion remaining in the winding core trace space in the example by using a through-hole expansion rod to divide it, Fig. 2B is an explanatory diagram during displacement and expansion, and Fig. 3A is an explanatory diagram of the displacement and expansion. A diagram showing the winding core trace space before expansion. Figure 3B is an explanatory diagram in which the separator end is displaced and expanded in the direction of the inner circumferential wall of the winding core trace space. Figure 4 is a diagram showing one electrode plate lead extending through the winding core trace space. FIG. 4 is an explanatory diagram when spot welding is performed on the inner bottom surface of the battery case using the method. 1... Winding core rod, 3... Slit, 4... Separator, 5... Separator end, 6... Positive electrode plate, 7
... Winding core trace space (through hole), 8 ... Negative electrode, 14 ...
Through-hole expansion rod.
Claims (1)
せ、セパレータ端部を巻き始め部として巻芯によ
り全体を渦巻状に巻回する工程と、巻芯跡空間に
これを分割するように残存するセパレータ端部
を、前記巻芯跡空間内に先の鋭利な透孔拡張棒を
挿入することにより巻芯跡空間の内周壁方向に変
位固定させる工程とを有したことを特徴とする渦
巻電極体の製造法。 ２ 前記透孔拡張棒が50〜100℃に加熱されてい
る特許請求の範囲第１項記載の渦巻電極体の製造
法。[Claims] 1. A step of interposing a separator between the strip-shaped positive and negative electrode plates, winding the whole in a spiral shape around a winding core with the end of the separator as the winding start point, and dividing this into a winding core trace space. A step of displacing and fixing the remaining separator end portion in the direction of the inner circumferential wall of the winding core trace space by inserting a sharp-tipped through-hole expansion rod into the winding core trace space. A method for manufacturing a spiral electrode body. 2. The method for manufacturing a spiral electrode body according to claim 1, wherein the hole expanding rod is heated to 50 to 100°C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56165211A JPS5866270A (en) | 1981-10-15 | 1981-10-15 | Manufacturing method for spiral electrode body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56165211A JPS5866270A (en) | 1981-10-15 | 1981-10-15 | Manufacturing method for spiral electrode body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5866270A JPS5866270A (en) | 1983-04-20 |
| JPH0351065B2 true JPH0351065B2 (en) | 1991-08-05 |
Family
ID=15807950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56165211A Granted JPS5866270A (en) | 1981-10-15 | 1981-10-15 | Manufacturing method for spiral electrode body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5866270A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3902648A1 (en) * | 1989-01-30 | 1990-08-09 | Varta Batterie | GALVANIC ELEMENT |
| JP3379282B2 (en) * | 1995-05-22 | 2003-02-24 | 松下電器産業株式会社 | Apparatus and method for producing battery electrode body |
| KR100422283B1 (en) * | 2001-07-20 | 2004-03-18 | 이계설 | a welding pin insert hole expanding and terminal status setting apparatus for a lithium battery's inner material |
| JP5148899B2 (en) * | 2007-03-01 | 2013-02-20 | パナソニック株式会社 | Manufacturing method of battery electrode group and battery electrode group manufacturing apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5449534A (en) * | 1977-09-26 | 1979-04-18 | Japan Storage Battery Co Ltd | Method of producing battery having spiral plate groups |
-
1981
- 1981-10-15 JP JP56165211A patent/JPS5866270A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5449534A (en) * | 1977-09-26 | 1979-04-18 | Japan Storage Battery Co Ltd | Method of producing battery having spiral plate groups |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5866270A (en) | 1983-04-20 |
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