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Title:
RESISTANCE WELDING METHOD OF METAL THIN SHEET AND METAL FOIL, AND METHOD FOR PRODUCING NONAQUEOUS SECONDARY BATTERY USING THE SAME
Document Type and Number:
Japanese Patent JP2008142722
Kind Code:
A
Abstract:

To solve the problem that, in the parallel welding of an electrode plate and a current collection lead sheet, regarding the conventional welding pedestal made of a metal material, a split is generated in the welding pedestal, and heat is dispersed into the metal foil and current collection lead, thus welding conditions are made instable, and to provide a nonaqueous secondary battery capable of performing stable lead sheet connection to the electrode plate, and having high reliability.

A method for manufacturing the nonaqueous secondary battery is characterized in that a metal foil exposed part 3 of an electrode plate 5, and a current collection lead sheet 2 are set so as to be superimposed on a pedestal 1 for welding made of an insulator, and a pair of welding electrodes 6 are arranged on the current collection lead sheet 2, and the welding electrode 6 is energized while pressurizing the current collection lead sheet 2, thus welding the metal foil exposed part 3 of the electrode plate 5, and the current collection lead sheet 2.


Inventors:
NISHIOKA TSUTOMU
HARIMA YUKIO
IMAI TADASHI
Application Number:
JP2006330201A
Publication Date:
June 26, 2008
Filing Date:
December 07, 2006
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
B23K11/00; H01M2/26; H01M10/04
Attorney, Agent or Firm:
Fumio Iwahashi
Hiroki Naito
Daisuke Nagano



 
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