Title:
NEGATIVE ELECTRODE ZINC-BASED ALLOY POWDER FOR ALKALINE BATTERY
Document Type and Number:
Japanese Patent JP3155201
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a zinc-based alloy powder capable of improving suppression of generation of hydrogen gas before and after discharging, as well as the load discharge characteristic when the zinc-based alloy powder is used as a negative electrode active material for an alkaline battery, and contains no harmful material such as mercury, cadmium, or lead.
SOLUTION: The zinc-based alloy powder contains Bi in the range of 0.001-0.5wt.%, Zr in the range of 0.001-0.5wt.%, and Sn in the range of 0.001-0.5wt.%. The zinc-based alloy is preferable to contain oxygen in the range of 0.001-0.08wt.%, have an apparent specific gravity of 1.5-2.4g/cm3, and be heat-treated in the range of 100-400°C under a vacuum or in an atmosphere of inert gas.
Inventors:
Yasumura, Takaaki
Nakagawa, Yoshiteru
Nozue, Tomohisa
Matsui, Kazuo
Tsutsui, Kiyohide
Nakagawa, Yoshiteru
Nozue, Tomohisa
Matsui, Kazuo
Tsutsui, Kiyohide
Application Number:
JP15140796A
Publication Date:
April 09, 2001
Filing Date:
June 12, 1996
Export Citation:
Assignee:
FUJI ELELCTROCHEM CO LTD
International Classes:
H01M4/42; C22C18/00; H01M4/06; (IPC1-7): H01M4/42; C22C18/00
Attorney, Agent or Firm:
一色 健輔 （外２名）