JPS6132353A - Alkaline storage battery - Google Patents
Alkaline storage batteryInfo
- Publication number
- JPS6132353A JPS6132353A JP15161484A JP15161484A JPS6132353A JP S6132353 A JPS6132353 A JP S6132353A JP 15161484 A JP15161484 A JP 15161484A JP 15161484 A JP15161484 A JP 15161484A JP S6132353 A JPS6132353 A JP S6132353A
- Authority
- JP
- Japan
- Prior art keywords
- welding
- current collector
- core metal
- plate group
- exposed
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
- H01M50/536—Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
- H01M50/533—Electrode connections inside a battery casing characterised by the shape of the leads or tabs
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、渦巻状極板群を備えたアルカリ蓄電池に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an alkaline storage battery with a spiral plate group.
従来例の構成とその問題点
従来渦巻状極板群を備えたアルカリ蓄電池を組立てるに
は帯状の陽極板、セパレータ及び陰極板を重ね合せ、渦
巻状に巻回して極板群を構成してから、陽極板、陰極板
のそれぞれの端面に略円板状の集電体を溶接していた。Conventional structure and its problems Conventionally, to assemble an alkaline storage battery equipped with a spiral plate group, a strip-shaped anode plate, a separator, and a cathode plate are stacked and wound in a spiral shape to form a plate group. , approximately disk-shaped current collectors were welded to the end faces of each of the anode plate and the cathode plate.
ここで用いられる集電体はこれまで第１図に糸すごとく
、集電体の表面及び溶接面が平滑になっていて中央に注
液のため、ならびに溶接用電極棒を貫通させる透孔１を
有した円板部２と、これに一体に形成されたリードタブ
３とから構成されていた。また第２図に示すような集電
体も開発され、溶接面に凹凸を設けるために集電体の円
板部２に多数の小孔５をあけたものもある。As shown in Figure 1, the current collector used here has a smooth surface and welding surface, and a through hole in the center for liquid injection and for passing the welding electrode. The lead tab 3 was formed integrally with the disc part 2. In addition, a current collector as shown in FIG. 2 has also been developed, in which a large number of small holes 5 are drilled in the disk portion 2 of the current collector in order to provide irregularities on the welding surface.
しかし、第１図に示す集電体は、溶接面が平滑なため、
極板の端面と溶接するには、溶接条件が非常にきびしく
、極板端面の酸化物や集電体Ｏ溶接面の酸化物が若干残
っているだけでも溶接強度にバラツキが発生していた。However, the current collector shown in Figure 1 has a smooth welding surface, so
Welding to the end face of the electrode plate requires very strict welding conditions, and even a small amount of oxide remaining on the end face of the electrode plate or on the welding surface of the current collector O causes variations in welding strength.
一方第２図に示す集電体は、溶接面に凹凸を設けるため
に、小孔を多数段けなければならないので、集電体の電
気抵抗が大きくなる。ここでの凸部の先端は集電体の厚
みとほぼ同じ寸法になっており、溶接電流で先端部を溶
接するには大電流が必要となるなどの問題点があった。On the other hand, in the current collector shown in FIG. 2, a large number of small holes must be formed in order to provide irregularities on the welding surface, so that the electrical resistance of the current collector increases. The tip of the convex portion here has a size that is almost the same as the thickness of the current collector, and there is a problem in that a large current is required to weld the tip with a welding current.
発明の目的
本発明の目的は、極板の端面に集電体を溶接する際、そ
の溶接強度を向上させ、集電体の電気抵抗を減少させて
電池特性を向」ニするもので−ある。OBJECTS OF THE INVENTION An object of the present invention is to improve the welding strength and reduce the electrical resistance of the current collector when welding the current collector to the end face of the electrode plate, thereby improving battery characteristics. .
発明の構成
本発明は、極板群端部の芯金露出部に溶接する集電体を
改良したものであって、外表面が平面であり、かつ芯金
露出部に溶接される溶接面に圧延又は鍛造等で放射状に
凸部を設けたアルカリ蓄電池である。このように集電体
を構成することによる。Structure of the Invention The present invention is an improved current collector to be welded to the exposed part of the cored metal at the end of the electrode plate group. This is an alkaline storage battery with radial protrusions formed by rolling or forging. By configuring the current collector in this way.
実施例の説明 以下本発明の一実施例を図面と共に説明する。Description of examples An embodiment of the present invention will be described below with reference to the drawings.
第３図は本発明に用いる集電体を表わしだ断面図である
。第４図はその断面の一部を拡大して示したものである
。１は注液ならびに溶接用電極棒を貫通させる透孔、２
は透孔１を中央部に有しだ円板部、３はリードタブ、４
は本発明の特徴とする圧延又は鍛造によって形成された
放射状の凸部を示す。この凸部４は第３図、第４図に示
すようにその先端をθだけの鋭角の楔状としている。FIG. 3 is a sectional view showing a current collector used in the present invention. FIG. 4 is an enlarged view of a part of the cross section. 1 is a through hole through which the electrode rod for liquid injection and welding passes; 2
3 is a circular plate portion with a through hole 1 in the center, 3 is a lead tab, and 4 is a circular plate portion with a through hole 1 in the center.
indicates a radial convex portion formed by rolling or forging, which is a feature of the present invention. As shown in FIGS. 3 and 4, this convex portion 4 has a wedge-shaped tip with an acute angle of θ.
溶接時この凸部は先端が鋭角なため、極板群の芯金露出
部の端面と点接触に近い状態で接触し、溶接時に集電体
に１〜２Ｋｙの圧力を加えながら電流を流すと、溶接面
の凸部と、極板の端面との交差する部分に熱集中が起き
て溶接され十分な溶接強度が確保される。第５図は集電
体全体を示す斜視図、第６図は極板群６の芯金露出部と
の溶接を示す図である。During welding, this convex part has an acute tip, so it contacts the end surface of the exposed core metal part of the electrode plate group in a state close to point contact, and when welding, when applying a pressure of 1 to 2 Ky to the current collector and applying current, , Heat concentration occurs at the intersection of the convex portion of the welding surface and the end face of the electrode plate, resulting in welding, and sufficient welding strength is ensured. FIG. 5 is a perspective view showing the entire current collector, and FIG. 6 is a view showing welding of the electrode plate group 6 to the exposed core metal portion.
従来の集電体を溶接するには、溶接時の圧力は３〜５Ｋ
Ｆとし、電圧は２４Ｖとしだとき、溶接電電圧を２４ｖ
としたとき、溶接電流は１００〜１２ＯＡで、必要な溶
接強度は十分確保で、きた。To weld conventional current collectors, the pressure during welding is 3-5K
F and the voltage is 24V, the welding electric voltage is 24V.
At this time, the welding current was 100 to 12OA, and the necessary welding strength was sufficiently secured.
これは点接触に近い状態で多数の溶接点を得ることがで
き、酸化物付着等の影響を殆んどうけないで、熱集中を
図ることができることによる。This is because a large number of welding points can be obtained in a state close to point contact, and heat concentration can be achieved with almost no influence of oxide adhesion.
発明の効果
上記に示すように、本発明の集電体を使用して極板群の
端面に溶接すると、溶］変圧力は従来に比較して１〜２
に５１少なくして溶接することができる。Effects of the Invention As shown above, when the current collector of the present invention is welded to the end face of the electrode plate group, the melting force is 1 to 2 times lower than that of the conventional one.
It is possible to weld by reducing the number by 51.
しかも溶接電流も従来に比較して３０％少なくして溶接
することができる。まだ溶接後の強度も従来の引張り強
度が２〜３１であったのに対し、本発明の集電体を使っ
た製品は４〜ｓ Ｋｙ／ｃｒｉになって溶接の信頼性が
向上した。Moreover, the welding current can be reduced by 30% compared to the conventional method. As for the strength after welding, whereas the conventional tensile strength was 2 to 31, products using the current collector of the present invention had a tensile strength of 4 to s Ky/cri, improving welding reliability.
第１図および第２図は従来の集電体を示す斜視図、第３
図は本発明の一例における集電体を示す断面図、第４図
は第３図の集電体の一部を拡大した断面図、第５図は本
発明による集電体の斜視図、第６図は渦巻状に巻回した
極板間の端側に集電体を溶接した際の斜視図を示す。
１・・・・・・透孔、２・・・・・・円板部、３・・・
・・・リードタブ、放射状の凸部、６・・・・・・渦巻
状極板群。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名第２
図
第３図Figures 1 and 2 are perspective views showing conventional current collectors;
The figure is a sectional view showing a current collector in an example of the present invention, FIG. 4 is an enlarged cross-sectional view of a part of the current collector in FIG. 3, and FIG. Figure 6 shows a perspective view when a current collector is welded to the end side between the spirally wound electrode plates. 1...Through hole, 2...Disc part, 3...
... Lead tab, radial convex portion, 6... Spiral electrode plate group. Name of agent: Patent attorney Toshio Nakao and 1 other person 2nd
Figure 3
Claims (1)
設けた帯状の陽極板及び陰極板をその芯金露出部を上下
にそれぞれ突出するよう渦巻状に巻回した極板群を有し
、この極板群の突出芯金露出部に集電体を溶接したアル
カリ蓄電池であって、前記集電体は外表面が平坦であり
芯金露出部に溶接される表面に放射状の凸部を有してい
るアルカリ蓄電池。It has an electrode plate group in which a band-shaped anode plate and a cathode plate with a separator interposed therebetween and an exposed core metal portion on one of the long sides are spirally wound so that the exposed core metal portions protrude upward and downward, respectively. This is an alkaline storage battery in which a current collector is welded to the exposed protruding core metal part of the electrode plate group, and the current collector has a flat outer surface and a radial convex part on the surface to be welded to the exposed core metal part. An alkaline storage battery with
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15161484A JPS6132353A (en) | 1984-07-20 | 1984-07-20 | Alkaline storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15161484A JPS6132353A (en) | 1984-07-20 | 1984-07-20 | Alkaline storage battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6132353A true JPS6132353A (en) | 1986-02-15 |
Family
ID=15522383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15161484A Pending JPS6132353A (en) | 1984-07-20 | 1984-07-20 | Alkaline storage battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6132353A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1076371A1 (en) * | 1999-08-10 | 2001-02-14 | Sanyo Electric Co., Ltd. | Nonaqueous electrolyte secondary cells and process for fabricating same |
| US6440604B1 (en) * | 1998-09-08 | 2002-08-27 | Japan Storage Battery Co., Ltd. | Cell |
| EP1688975A1 (en) * | 2003-11-25 | 2006-08-09 | Asahi Glass Company, Limited | Capacitor |
-
1984
- 1984-07-20 JP JP15161484A patent/JPS6132353A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6440604B1 (en) * | 1998-09-08 | 2002-08-27 | Japan Storage Battery Co., Ltd. | Cell |
| EP1076371A1 (en) * | 1999-08-10 | 2001-02-14 | Sanyo Electric Co., Ltd. | Nonaqueous electrolyte secondary cells and process for fabricating same |
| US6692863B1 (en) | 1999-08-10 | 2004-02-17 | Sanyo Electric Co., Ltd. | Nonaqueous electrolyte secondary cells and process for fabricating same |
| US6730438B2 (en) | 1999-08-10 | 2004-05-04 | Sanyo Electric Co., Ltd. | Nonaqueous electrolyte secondary cells and process for fabricating same |
| US6899973B2 (en) | 1999-08-10 | 2005-05-31 | Sanyo Electric Co., Ltd. | Nonaqueous electrolyte secondary cells |
| US6995333B2 (en) * | 1999-08-10 | 2006-02-07 | Sanyo Electric Co., Ltd. | Process for fabricating nonaqueous electrolyte secondary cells |
| KR100675700B1 (en) * | 1999-08-10 | 2007-02-01 | 산요덴키가부시키가이샤 | Non-water electrolyte secondary battery and manufacturing method thereof |
| EP1688975A1 (en) * | 2003-11-25 | 2006-08-09 | Asahi Glass Company, Limited | Capacitor |
| EP1688975A4 (en) * | 2003-11-25 | 2009-03-11 | Asahi Glass Co Ltd | Capacitor |
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