Title:
HYDROGEN STORAGE ALLOY POWDER, NICKEL-HYDROGEN BATTERY HAVING THE POWDER IN NEGATIVE ELECTRODE ACTIVE MATERIAL AND PRODUCTION OF THE POWDER
Document Type and Number:
Japanese Patent JPH07118704
Kind Code:
A
Abstract:
PURPOSE: To produce a durable nickel-hydrogen battery at a low cost by uniformly depositing a small amt. of Co on the surface of a hydrogen storage alloy powder and using the obtained hydrogen storage alloy powder.
CONSTITUTION: Co is uniformly deposited on the surface of a hydrogen storage alloy powder by CVD. Otherwise, the alloy powder is added to an aq. cobalt sulfate soln. and agitated, aq. KOH is added to the soln. to make it alkaline, and the powder is washed with water to deposit a Co compd. uniformly on the powder surface. The Co-deposited alloy powder or the alloy coated with a Co compd. is heat-treated, and a hydrogen storage alloy powder with the grain surface having a high content of Co is obtained.
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Inventors:
KOMORI KATSUNORI
YAMAMOTO TORU
KIMURA TADAO
TOYOGUCHI YOSHINORI
SUZUKI GOHEI
YAMAGUCHI SEIJI
IKOMA MUNEHISA
YAMAMOTO TORU
KIMURA TADAO
TOYOGUCHI YOSHINORI
SUZUKI GOHEI
YAMAGUCHI SEIJI
IKOMA MUNEHISA
Application Number:
JP26533093A
Publication Date:
May 09, 1995
Filing Date:
October 25, 1993
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
C22C19/00; C23C16/06; C23C18/32; H01M4/38; B22F1/02; (IPC1-7): B22F1/02; C22C19/00; C23C16/06; C23C18/32; H01M4/38
Domestic Patent References:
| JPH059504A | 1993-01-19 | |||
| JPH05267029A | 1993-10-15 | |||
| JPS581032A | 1983-01-06 | |||
| JPS649603A | 1989-01-12 | |||
| JPS5927505A | 1984-02-14 | |||
| JPS63223104A | 1988-09-16 |
Attorney, Agent or Firm:
Awano Shigetaka