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Title:
METHOD FOR MANUFACTURING CORE MATERIAL FOR ELECTRODE PLATE AND METHOD FOR MANUFACTURING ALKALI STORAGE BATTERY
Document Type and Number:
WIPO Patent Application WO/2003/105256
Kind Code:
A1
Abstract:
A method for manufacturing a core material for an electrode plate, which comprises immersing the core material (11) comprising nickel or a nickel-plated steel and containing copper incorporated therein as an impurity in an aqueous solution (12) containing an ammonium ion and hydrogen peroxide, to thereby dissolve the copper into the aqueous solution (12), and removing the aqueous solution (12) from the surface of the core material (11); and a method for manufacturing an alkali storage battery which comprises manufacturing a core material for an electrode plate by the above method. The method allows the manufacture of an alkali storage battery exhibiting higher reliability, as compared to a conventional alkali storage battery.

Inventors:
ADACHI ATSUSHI (JP)
KUSAMA KAZUYUKI (JP)
OZAWA MICHIO (JP)
MORISHITA NOBUYASU (JP)
KOBAYASHI MASARU (JP)
Application Number:
PCT/JP2003/007299
Publication Date:
December 18, 2003
Filing Date:
June 09, 2003
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
TOYOTA MOTOR CO LTD (JP)
ADACHI ATSUSHI (JP)
KUSAMA KAZUYUKI (JP)
OZAWA MICHIO (JP)
MORISHITA NOBUYASU (JP)
KOBAYASHI MASARU (JP)
International Classes:
C22B7/00; C22B15/00; H01M4/04; H01M4/66; H01M4/80; H01M10/24; H01M10/30; H01M10/34; (IPC1-7): H01M4/66; H01M4/80; H01M4/26
Foreign References:
JP2000223116A2000-08-11
US4663256A1987-05-05
JPH08236120A1996-09-13
Attorney, Agent or Firm:
IKEUCHI SATO & PARTNER PATENT ATTORNEYS (OAP TOWER, 8-30, Tenmabashi 1-chome, Kita-k, Osaka-shi Osaka, JP)
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