Title:
ガス発生量の少ないアルカリ電池用亜鉛合金粉末およびその製造方法
Document Type and Number:
Japanese Patent JP4639304
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To solve the problem that zinc alloy powder for a negative electrode reducing a hydrogen gas generation amount by heat treating zinc alloy powder in which is added alloy elements is accompanied by decrease of discharge duration from oxidation of zinc and also by increase in the gas generation amount after over-discharging. SOLUTION: Crystal particles of zinc alloy powder, which are enlarged within predetermined range in size, obtained by recrystallization after heat treatment while being prevented from oxidation of zinc under controlled heat treatment conditions of temperature, atmosphere, or the like, provides zinc alloy powder for the alkaline battery which reduces the gas generation amount not only before but also during and after using the battery, and also which improves the discharge duration.
More Like This:
Inventors:
Kenji Ichiyasu
Hikoichi Zhang
Shigeru Fuchida
Hikoichi Zhang
Shigeru Fuchida
Application Number:
JP2000085659A
Publication Date:
February 23, 2011
Filing Date:
March 27, 2000
Export Citation:
Assignee:
dowa Electronics Co., Ltd.
International Classes:
C22F1/02; H01M4/42; B22F1/00; C22C18/00; C22F1/00; C22F1/16; H01M4/06
Domestic Patent References:
| JP11176435A | ||||
| JP4237952A |
Attorney, Agent or Firm:
Kenji Wada
Komatsu Taka
Komatsu Taka