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Patent Searching and Data


Title:
MANUFACTURE OF CYLINDRICAL CLOSED-TYPE BATTERY
Document Type and Number:
Japanese Patent JPH10340737
Kind Code:
A
Abstract:

To provide the manufacturing method of a cylindrical closed type battery whose resistance is lowered and of which respective parts of an electrode plate have electrode potential with unevenness suppressed and which has a high capacity with lowered loss, wile avoiding deterioration in weldability of electrode plates and intermediate collectors.

To weld an electrode terminal 72 and the rim part 62 of an electrode plate 6, an intermediate collector body 71 is extended along the diameter direction of a spiral rim part 61 of the electrode plate 6. A slit 73 for welding which penetrates the intermediate collector body in the thickness direction is formed in the intermediate collector body 71, and the rim part 62 of the electrode plate 6 is inserted into the slit 72 for welding and the rim part 62 of the electrode plate 6 which is exposed to the opposite electrode plate side is united with the intermediate collector body 71 by welding. By doing so, while deterioration in the weldability of the electrode plate 6 and the intermediate collector body 71 are avoided, the battery resistance is lowered and unevenness in the potential of each part of the electrode plate is suppressed and a cylindrical closed-type battery with a high capacity with low loss can be manufactured.


Inventors:
IKUSHIMA HIROHISA
Application Number:
JP14880397A
Publication Date:
December 22, 1998
Filing Date:
June 06, 1997
Export Citation:
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Assignee:
TOYODA AUTOMATIC LOOM WORKS
International Classes:
H01M2/26; H01M10/04; (IPC1-7): H01M10/04; H01M2/26
Attorney, Agent or Firm:
Hiroshi Okawa