JP2601704Y2 - Spiral battery - Google Patents
Spiral batteryInfo
- Publication number
- JP2601704Y2 JP2601704Y2 JP1993060445U JP6044593U JP2601704Y2 JP 2601704 Y2 JP2601704 Y2 JP 2601704Y2 JP 1993060445 U JP1993060445 U JP 1993060445U JP 6044593 U JP6044593 U JP 6044593U JP 2601704 Y2 JP2601704 Y2 JP 2601704Y2
- Authority
- JP
- Japan
- Prior art keywords
- group
- negative electrode
- spiral
- electrode
- type battery
- 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 - Fee Related
Links
Classifications
-
- 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
- Primary Cells (AREA)
- Secondary Cells (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本考案は、シート状の正極と負極
をセパレータを介して積層し、これをスパイラル状に巻
回したものを電極群とするスパイラル形電池に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spiral type battery in which a sheet-like positive electrode and a negative electrode are laminated with a separator interposed therebetween, and this is wound in a spiral shape to form an electrode group.
【０００２】[0002]
【従来の技術】図３は従来のスパイラル形電池の一例を
示す正面断面図である。2. Description of the Related Art FIG. 3 is a front sectional view showing an example of a conventional spiral type battery.
【０００３】従来、この種のスパイラル形電池１におい
ては、図３に示すように、電極群２の上面と負極缶３の
ビーディング部３ａとの間にできる隙間に円環状の群押
さえ５を挿設することにより、スパイラル形電池１の振
動・衝撃に対する信頼性を確保していた。Conventionally, in a spiral type battery 1 of this type, as shown in FIG. 3, an annular group retainer 5 is provided in a gap formed between the upper surface of an electrode group 2 and a beading portion 3a of a negative electrode can 3. By inserting the battery, the reliability of the spiral battery 1 against vibration and impact was ensured.
【０００４】[0004]
【考案が解決しようとする課題】しかし、この群押さえ
５を厚くすると、負極缶３にビーディング部３ａを形成
する際に群押さえ５の外周壁に当たり、群押さえ５が変
形し、ビーディング部３ａと電極群２との間の所定の位
置に群押さえ５が納まらなくなる危険性が高くなる。そ
のため、群押さえ５は薄くせざるを得ない。その結果、
電極群２の上面と負極缶３のビーディング部３ａとの間
の隙間を群押さえ５で完全に埋めることが出来ない場合
があり、この場合には電極群２を負極缶３に確実に固定
することが出来ない。従って、振動・衝撃に対する信頼
性が必ずしも十分でないという不都合があった。However, if the group presser 5 is made thicker, it will hit the outer peripheral wall of the group presser 5 when forming the beading portion 3a on the negative electrode can 3, and the group presser 5 will be deformed and beaded. There is a high risk that the group retainer 5 will not fit in a predetermined position between the electrode group 3a and the electrode group 2. Therefore, the group holder 5 must be thin. as a result,
In some cases, the gap between the upper surface of the electrode group 2 and the beading portion 3a of the negative electrode can 3 cannot be completely filled with the group holder 5, and in this case, the electrode group 2 is securely fixed to the negative electrode can 3. I can't do it. Therefore, there is an inconvenience that the reliability against vibration and impact is not always sufficient.
【０００５】本考案は、上記事情に鑑み、群押さえの形
状を工夫することにより、製造時に群押さえが変形しな
いのは勿論のこと、振動・衝撃に対する信頼性を高める
ことが可能なスパイラル形電池を提供することを目的と
する。[0005] In view of the above circumstances, the present invention is a spiral-type battery capable of improving the reliability against vibration and shock as well as preventing deformation of the group retainer during manufacturing by devising the shape of the group retainer. The purpose is to provide.
【０００６】[0006]
【課題を解決するための手段】即ち、本考案は、電極群
（２）が収納された負極缶（３）にビーディング部（３
ａ）を形成することにより、略円環状の群押さえ（５）
を介して前記電極群を前記負極缶に押圧して固定するス
パイラル形電池（１）において、前記群押さえとして、
前記負極缶のビーディング部に当接するテーパ面（５
ａ）が予め形成されたものを用いて構成される。That is, according to the present invention, a beading portion (3) is provided on a negative electrode can (3) containing an electrode group (2).
By forming a), a substantially annular group holder (5) is formed.
In a spiral-type battery (1) in which the electrode group is pressed against and fixed to the negative electrode can through (1),
A tapered surface (5) contacting the beading portion of the negative electrode can
a) is configured using a pre- formed one.
【０００７】なお、括弧内の番号等は、図面における対
応する要素を表わす便宜的なものであり、従って、本考
案は図面上の記載に限定拘束されるものではない。この
ことは、「実用新案登録請求の範囲」及び「作用」の欄
についても同様である。[0007] The numbers in parentheses are for convenience showing the corresponding elements in the drawings, and therefore, the present invention is not limited to the description on the drawings. The same applies to the fields of “claims for registering utility model” and “action”.
【０００８】[0008]
【作用】上記した構成により、本考案は、負極缶（３）
のビーディング部（３ａ）がテーパ面（５ａ）を介して
群押さえ（５）を電極群（２）側に押圧するように作用
する。According to the above construction, the present invention provides a negative electrode can (3)
Beading portion (3a) acts to press the group presser (5) toward the electrode group (2) via the tapered surface (5a).
【０００９】[0009]
【実施例】以下、本考案の実施例を図面に基づいて説明
する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings.
【００１０】図１は本考案によるスパイラル形電池の一
実施例を示す正面断面図、図２は図１に示すスパイラル
形電池の群押さえを示す図であり、（ａ）は平面図、
（ｂ）は（ａ）のＡ−Ａ線による断面図である。FIG. 1 is a front sectional view showing an embodiment of a spiral type battery according to the present invention, FIG. 2 is a view showing a group holder of the spiral type battery shown in FIG. 1, (a) is a plan view,
(B) is a sectional view taken along line AA of (a).
【００１１】本考案によるスパイラル形電池１は、図１
に示すように、負極缶３を有しており、負極缶３の開口
部にはガスケット６を介して正極端子７が嵌着されてい
る。また、負極缶３内には電極群２が収納されており、
電極群２の上側には、ポリエチレン等の合成樹脂からな
る略円環状の群押さえ５が、負極缶３に形成されたビー
ディング部３ａによって下方（電極群２側）に押圧され
た形で載置されている。The spiral type battery 1 according to the present invention is shown in FIG.
As shown in FIG. 1, a negative electrode can 3 is provided, and a positive electrode terminal 7 is fitted to an opening of the negative electrode can 3 via a gasket 6. The electrode group 2 is housed in the negative electrode can 3,
On the upper side of the electrode group 2, a substantially annular group holder 5 made of a synthetic resin such as polyethylene is placed while being pressed downward (toward the electrode group 2) by a beading portion 3 a formed on the negative electrode can 3. Is placed.
【００１２】ところで、この群押さえ５は、図２に示す
ように、その上面外周部に予め（負極缶３内の電極群２
上に載置される前に）テーパ面５ａが全周に亙って形成
されており、群押さえ５は該テーパ面５ａを介して負極
缶３のビーディング部３ａに当接している。なお、テー
パ面５ａの傾斜角度θは負極缶３のビーディング部３ａ
の形状に応じて適宜決定されている。By the way, as shown in FIG. 2, the group retainer 5 is provided on the outer peripheral portion of the upper surface thereof in advance (the electrode group 2 in the negative electrode can 3).
A tapered surface 5a is formed over the entire circumference ( before being placed on the upper surface ) , and the group retainer 5 contacts the beading portion 3a of the negative electrode can 3 via the tapered surface 5a. In addition, the inclination angle θ of the tapered surface 5a is the beading portion 3a of the negative electrode can 3.
Are determined as appropriate according to the shape of.
【００１３】本考案によるスパイラル形電池１は以上の
ような構成を有するので、製造時における群押さえ５の
変形を防止することが出来ると共に、振動・衝撃に対す
る信頼性を高めることが可能となる。即ち、予めテーパ
面５ａが形成された群押さえ５の外周部は薄くなってい
るので、負極缶３にビーディング部３ａを形成する際に
群押さえ５の外周壁に当たって群押さえ５が変形してし
まうようなことはない。また、群押さえ５の外周部以外
の部分は厚くなっているので、群押さえ５によって電極
群２を負極缶３に確実に固定することが出来るため、振
動・衝撃に対する信頼性が高まる。Since the spiral type battery 1 according to the present invention has the above-described configuration, it is possible to prevent the deformation of the group holder 5 at the time of manufacturing, and it is possible to increase the reliability against vibration and impact. That is, since the outer periphery of the group retainer 5 on which the tapered surface 5a is formed in advance is thin, the group retainer 5 is deformed by hitting the outer peripheral wall of the group retainer 5 when forming the beading portion 3a on the negative electrode can 3. There is no such thing. Further, since the portion other than the outer peripheral portion of the group retainer 5 is thick, the electrode group 2 can be securely fixed to the negative electrode can 3 by the group retainer 5, so that the reliability against vibration and impact is improved.
【００１４】上述の効果を確認するため、傾斜角度θが
３０°のテーパ面５ａを予め形成した群押さえ５を用い
たスパイラル形電池１（本考案品）と、テーパ面５ａを
形成しない群押さえ５を用いたスパイラル形電池１（従
来品）とを１０００個ずつ試作し、これらのスパイラル
形電池１について振動・衝撃試験を行なった。その結
果、従来品では１０００個のうち１５個（即ち、１．５
％）に電圧低下がみられたのに対して、本考案品では電
圧低下品は皆無であった。In order to confirm the above-mentioned effects, a spiral type battery 1 (product of the present invention) using a group holder 5 in which a tapered surface 5a having an inclination angle θ of 30 ° is formed in advance, and a group holder without a tapered surface 5a are formed. Each of the spiral-type batteries 1 (conventional product) using the No. 5 was prototyped, and vibration and impact tests were performed on the spiral-type batteries 1. As a result, in the conventional product, 15 out of 1000 pieces (that is, 1.5 pieces)
%), There was no voltage drop in the product of the present invention.
【００１５】[0015]
【考案の効果】以上説明したように、本考案によれば、
電極群２が収納された負極缶３にビーディング部３ａを
形成することにより、略円環状の群押さえ５を介して前
記電極群２を前記負極缶３に押圧して固定するスパイラ
ル形電池１において、前記群押さえ５として、前記負極
缶３のビーディング部３ａに当接するテーパ面５ａが予
め形成されたものを用いて構成したので、負極缶３のビ
ーディング部３ａがテーパ面５ａを介して群押さえ５を
電極群２側に押圧することから、製造時に群押さえ５が
変形しないのは勿論のこと、振動・衝撃に対する信頼性
を高めることが可能なスパイラル形電池１を提供するこ
とが出来る。[Effects of the Invention] As described above, according to the present invention,
By forming a beading portion 3a on the negative electrode can 3 in which the electrode group 2 is housed, the spiral battery 1 presses and fixes the electrode group 2 to the negative electrode can 3 via a substantially annular group retainer 5. In the above, the tapered surface 5a contacting the beading portion 3a of the negative electrode can 3 is preliminarily used as the group presser 5.
Since it is configured with what is because formed, since the beading portion 3a of the negative electrode can 3 presses the group presser 5 on the electrode group 2 side through the tapered surface 5a, not a deformed group presser 5 at the time of manufacture Needless to say, it is possible to provide the spiral-type battery 1 capable of improving reliability against vibration and impact.
【図１】本考案によるスパイラル形電池の一実施例を示
す正面断面図である。FIG. 1 is a front sectional view showing an embodiment of a spiral type battery according to the present invention.
【図２】図１に示すスパイラル形電池の群押さえを示す
図であり、（ａ）は平面図、（ｂ）は（ａ）のＡ−Ａ線
による断面図である。FIGS. 2A and 2B are diagrams showing a group holder of the spiral-type battery shown in FIG. 1, wherein FIG. 2A is a plan view and FIG. 2B is a cross-sectional view taken along line AA of FIG.
【図３】従来のスパイラル形電池の一例を示す正面断面
図である。FIG. 3 is a front sectional view showing an example of a conventional spiral-type battery.
１……スパイラル形電池 ２……電極群 ３……負極缶 ３ａ……ビーディング部 ５……群押さえ ５ａ……テーパ面 DESCRIPTION OF SYMBOLS 1 ... Spiral type battery 2 ... Electrode group 3 ... Negative electrode can 3a ... Beading part 5 ... Group hold 5a ... Tapered surface
───────────────────────────────────────────────────── フロントページの続き (72)考案者 石黒 康裕 東京都港区新橋５丁目36番11号 富士電 気化学株式会社内 (72)考案者 村上 行由 東京都港区新橋５丁目36番11号 富士電 気化学株式会社内 (56)参考文献 特開 平３−25465（ＪＰ，Ａ) 特開 平３−266363（ＪＰ，Ａ) 特開 昭62−198050（ＪＰ，Ａ) (58)調査した分野(Int.Cl.6，ＤＢ名) H01M 10/04 H01M 6/02 H01M 2/34 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yasuhiro Ishiguro 5-36-11 Shimbashi, Minato-ku, Tokyo Inside Fuji Electric Chemical Co., Ltd. (72) Inventor Yukiyoshi Murakami 5-36-11 Shimbashi, Minato-ku, Tokyo No. Fuji Electric Chemical Co., Ltd. (56) References JP-A-3-25465 (JP, A) JP-A-3-266363 (JP, A) JP-A-62-198050 (JP, A) (58) Survey Field (Int.Cl. 6 , DB name) H01M 10/04 H01M 6/02 H01M 2/34
Claims (1)
にビーディング部（３ａ）を形成することにより、略円
環状の群押さえ（５）を介して前記電極群を前記負極缶
に押圧して固定するスパイラル形電池（１）において、 前記群押さえとして、前記負極缶のビーディング部に当
接するテーパ面（５ａ）が予め形成されたものを用いた
ことを特徴とするスパイラル形電池。1. A negative electrode can (3) containing an electrode group (2).
Forming a beading portion (3a) on the spiral-shaped battery (1) for pressing and fixing the electrode group to the negative electrode can via a substantially annular group presser (5); A spiral-shaped battery in which a tapered surface (5a) contacting a beading portion of the negative electrode can is formed in advance .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1993060445U JP2601704Y2 (en) | 1993-11-10 | 1993-11-10 | Spiral battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1993060445U JP2601704Y2 (en) | 1993-11-10 | 1993-11-10 | Spiral battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0730449U JPH0730449U (en) | 1995-06-06 |
| JP2601704Y2 true JP2601704Y2 (en) | 1999-12-06 |
Family
ID=13142491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1993060445U Expired - Fee Related JP2601704Y2 (en) | 1993-11-10 | 1993-11-10 | Spiral battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2601704Y2 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62198050A (en) * | 1986-02-25 | 1987-09-01 | Shin Kobe Electric Mach Co Ltd | Manufacture of enclosed type nickel/cadmium storage battery |
| JPH03245465A (en) * | 1990-02-22 | 1991-11-01 | Matsushita Electric Ind Co Ltd | Organic electrolyte cell |
| JP2814665B2 (en) * | 1990-03-15 | 1998-10-27 | 松下電器産業株式会社 | Organic electrolyte battery |
-
1993
- 1993-11-10 JP JP1993060445U patent/JP2601704Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0730449U (en) | 1995-06-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |