Title:
MANUFACTURE OF UNSINTERED NICKEL ELECTRODE FOR ALKALINE STORAGE BATTERY
Document Type and Number:
Japanese Patent JP3249414
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To manufacture an unsintered nickel pole for an alkaline storage battery with the usage factor of active material being extremely high.
SOLUTION: Sodium hydroxide water solution is added to composite particle powder A with β-CoOOH layers formed on the surfaces of nickel hydroxide particles or nickel hydroxide mainly contained solid solution particles and heat- treated at 50-200°C under the existance of oxygen to change the β-CoOOH layers into sodium contained cobalt compound layers for manufacturing composite particle powder B. Then, the composite particle powder B is used as active material powder to manufacture an unsintered nickel pole. The usage factor of the active material shown as a vertical axis in a figure is an index, where the usage factor of the active material at the third cycle for the unsintered nickel pole a1 is 100.
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Inventors:
Kosuke Satoguchi
Mitsunori Tokuda
Katsuhiko Niiyama
Mutsumi Yano
Mitsuzo Nogami
Ikuro Yonezu
Koji Nishio
Mitsunori Tokuda
Katsuhiko Niiyama
Mutsumi Yano
Mitsuzo Nogami
Ikuro Yonezu
Koji Nishio
Application Number:
JP35533196A
Publication Date:
January 21, 2002
Filing Date:
December 20, 1996
Export Citation:
Assignee:
Sanyo Electric Co., Ltd.
International Classes:
H01M4/52; H01M4/32; (IPC1-7): H01M4/32; H01M4/52
Domestic Patent References:
| JP1107453A | ||||
| JP4129171A | ||||
| JP1200555A | ||||
| JP378965A |
Attorney, Agent or Firm:
Tomohiro Matsuo