Title:
METAL OXIDE HYDROGEN SECONDARY BATTERY
Document Type and Number:
Japanese Patent JP3146063
Kind Code:
B2
Abstract:
PURPOSE: To provide a metal oxide hydrogen secondary battery provided with a negative electrode, containing a rare earth hydrogen storage alloy with a specific surface area by a BET method at hydrocrushing time in a predetermined quantity, and a long life of charge/discharge cycle further with small unevenness of this life.
CONSTITUTION: In a metal oxide hydrogen secondary battery of structure in which a positive electrode, alkaline electrolyte and a negative electrode of containing rare earth hydrogen storage alloy powder as an active material are housed in a vessel, the negative electrode contains a rare earth hydrogen storage alloy whose specific surface area by a BET method at one time hydrocrushing time at 2 to 30°C under a hydrogen pressure of 5 to 10atm. (gage pressure) becomes 0.020m2/g or more and less than 0.050m2/g.
Inventors:
Chizuru Shindo
Nobuaki Chiba
Mitsuo Ima
Kaoru Hosobuchi
Ichiro Saruwatari
Nobuaki Chiba
Mitsuo Ima
Kaoru Hosobuchi
Ichiro Saruwatari
Application Number:
JP12349692A
Publication Date:
March 12, 2001
Filing Date:
May 15, 1992
Export Citation:
Assignee:
Toshiba Battery Co., Ltd.
International Classes:
H01M4/24; H01M4/38; H01M10/24; H01M10/30; (IPC1-7): H01M4/38
Domestic Patent References:
| JP4112458A | ||||
| JP536406A |
Attorney, Agent or Firm:
Takehiko Suzue
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