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1. WO2012066637 - CYLINDRICAL SECONDARY BATTERY

Publication Number WO/2012/066637
Publication Date 24.05.2012
International Application No. PCT/JP2010/070376
International Filing Date 16.11.2010
IPC
H01M 2/26 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2Constructional details, or processes of manufacture, of the non-active parts
20Current-conducting connections for cells
22Fixed connections, i.e. not intended for disconnection
26Electrode connections
H01M 2/34 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2Constructional details, or processes of manufacture, of the non-active parts
20Current-conducting connections for cells
34with provision for preventing undesired use or discharge
CPC
H01M 10/0422
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
04Construction or manufacture in general
0422Cells or battery with cylindrical casing
H01M 2/022
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2Constructional details or processes of manufacture of the non-active parts
02Cases, jackets or wrappings
0202for small-sized cells or batteries, e.g. miniature battery or power cells, batteries or cells for portable equipment
022Cases of cylindrical or round shape
H01M 2/1247
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2Constructional details or processes of manufacture of the non-active parts
12Vent plugs or other mechanical arrangements for facilitating escape of gases
1247Explosion- or splash-preventing means contained in the head space of the battery, e.g. means floating on the electrolyte
H01M 2/263
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2Constructional details or processes of manufacture of the non-active parts
20Current conducting connections for cells
22Fixed connections, i.e. not intended for disconnection
26Electrode connections
263Electrode connections overlying wound or folded electrode stacks
H01M 2/30
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2Constructional details or processes of manufacture of the non-active parts
20Current conducting connections for cells
30Terminals
Y02E 60/10
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
60Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
10Energy storage
Applicants
  • 株式会社 日立製作所 HITACHI, LTD. [JP]/[JP] (AllExceptUS)
  • 久保田 修 KUBOTA, Osamu [JP]/[JP] (UsOnly)
  • 田中 明秀 TANAKA, Akihide [JP]/[JP] (UsOnly)
  • 馮 孝亮 FYEN, Kouryou [CN]/[JP] (UsOnly)
Inventors
  • 久保田 修 KUBOTA, Osamu
  • 田中 明秀 TANAKA, Akihide
  • 馮 孝亮 FYEN, Kouryou
Agents
  • 永井 冬紀 NAGAI, Fuyuki
Priority Data
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) CYLINDRICAL SECONDARY BATTERY
(FR) ACCUMULATEUR SECONDAIRE CYLINDRIQUE
(JA) 円筒形二次電池
Abstract
(EN)
A conductive lead (21 or 22), which is welded to a positive electrode (11) or a negative electrode (12), protrudes from the upper surface side or the lower surface side of an electrode group (10). The conductive leads (21, 22) respectively have spiral portions (21b, 22b) and end portions (21c, 22c) for welding. The end portion (21c) for welding of the conductive lead (21) is welded to a cover unit (5), and the end portion (22c) for welding of the conductive lead (22) is welded to a can bottom (203) of a battery can (2). The end portion (22c) for welding of the conductive lead (22) is disposed at a position corresponding to a hollow portion (15a) of an axial core (15).
(FR)
Selon l'invention, un fil conducteur (21 ou 22), qui est soudé à une électrode positive (11) ou à une électrode négative (12), fait saillie à partir d'un côté de surface supérieure ou d'un côté de surface inférieure d'un groupe d'électrodes (10). Les fils conducteurs (21, 22) possèdent respectivement des parties en spirale (21b, 22b) et des parties d'extrémité (21c, 22c) pour le soudage. La partie d'extrémité (21c) pour le soudage du fil conducteur (21) est soudée à une unité de couvercle (5) et la partie d'extrémité (22c) pour le soudage du fil conducteur (22) est soudée au fond (203) du boîtier (2) de l'accumulateur. La partie d'extrémité (22c) pour le soudage du fil conducteur (22) est disposée dans une position qui correspond à une partie creuse (15a) d'un noyau axial (15).
(JA)
 電極群10の上面側および下面側から、正極電極11または負極電極12に溶接された導電リード21または22が突き出している。導電リード21、22は渦巻形状部21b、22bおよび溶接用端部21c、22cを有している。導電リード21の溶接用端部21cは、蓋ユニット5に溶接され、導電リード22の溶接用端部22cは電池缶2の缶底203に溶接されている。導電リード22の溶接用端部22cは軸芯15の中空部15aに対応して位置している。
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Latest bibliographic data on file with the International Bureau