Title:
AIR ELECTRODE AND AIR CELL USING THE SAME AS POSITIVE ELECTRODE
Document Type and Number:
Japanese Patent JP2002289266
Kind Code:
A
Abstract:
To develop air electrode catalyst which is less expensive and has less oxygen overvoltage than platinum catalyst and to provide an inexpensive air electrode having high charging/discharging efficiency and an air cell by using the air electrode catalyst.
The air electrode catalyst for an air electrode of the air cell operating in acidic atmosphere is mainly composed of carbon and metal sulphide. The metal sulphide is preferably NiS. The air call preferably comprises an air electrode using the electrode catalyst mainly composed of carbon and metal sulphide as a positive electrode, a proton exchange film as electrolyte, and a hydrogen storage alloy electrode as a negative electrode.
Inventors:
ARISHIMA YASUO
KAYANO HIROSHI
SHIBATA SHINSUKE
ISHI SUSUMU
NAGAI TATSU
KAYANO HIROSHI
SHIBATA SHINSUKE
ISHI SUSUMU
NAGAI TATSU
Application Number:
JP2001092620A
Publication Date:
October 04, 2002
Filing Date:
March 28, 2001
Export Citation:
Assignee:
HITACHI MAXELL
International Classes:
H01M4/90; H01M12/06; (IPC1-7): H01M12/06; H01M4/90
Attorney, Agent or Firm:
Miwa Tetsuo