Title:
ALKALINE STORAGE BATTERY AND MANUFACTURE OF HYDROGEN STORAGE ALLOY THEREFOR
Document Type and Number:
Japanese Patent JP3265652
Kind Code:
B2
Abstract:
PURPOSE: To provide an alkaline storage battery having the capability of displaying the excellent characteristics of a hydrogen storage alloy stably for a long term by strongly bonding fine powder material of metal or the like on the surface of hydrogen storage alloy powder.
CONSTITUTION: An alkaline storage battery is constituted of a positive electrode mainly composed of a metal oxide, a negative electrode mainly composed of a hydrogen storage alloy, together with a separator and an alkaline electrolyte. For the negative electrode, mechanical energy such as a compression force and an abrasion and cracking force is applied between mother particles of hydrogen storage alloy powder and sister particles of a smaller grain size but higher ductility, thereby roughening the surface of each mother particle and rolling the sister particles to cover the roughened surface for the purpose of surface treatment.
Inventors:
Shozo Fujiwara
Youichi Izumi
Yoshio Moriwaki
Isao Matsumoto
Youichi Izumi
Yoshio Moriwaki
Isao Matsumoto
Application Number:
JP29766792A
Publication Date:
March 11, 2002
Filing Date:
October 09, 1992
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
C22C1/00; B22F9/04; C22C1/02; H01M4/24; H01M4/26; H01M4/38; H01M10/24; H01M10/34; (IPC1-7): H01M4/24; H01M4/26; H01M10/24
Domestic Patent References:
| JP3245460A | ||||
| JP310002A | ||||
| JP59504A | ||||
| JP5266915A |
Attorney, Agent or Firm:
Fumio Iwahashi (2 others)
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