POSITIVE ELECTRODE ACTIVE MATERIAL FOR ALKALINE CELL

Title:

POSITIVE ELECTRODE ACTIVE MATERIAL FOR ALKALINE CELL

Document Type and Number:

WIPO Patent Application WO/2002/023647

Kind Code:

A1

Abstract:

A positive electrode active material for an alkaline cell which comprises an Ag-Bi(-M) containing oxidation product produced by reacting respective inorganic acid salts of silver and bismuth and preferably M, M representing at least one metal selected from the group consisting of manganese, nickel and cobalt, with an alkali hydroxide in an aqueous medium to prepare an Ag-Bi(-M) containing neutralization product including precipitates and oxidizing the neutralization product with an oxidizing agent; or comprises an Ag-Bi(-M) containing oxidation product produced by reacting respective inorganic acid salts of silver and bismuth and preferably M with an alkali hydroxide in the presence of an oxidizing agent in an aqueous medium.

Inventors:

TANOUE KOJI (JP)
OMOTO YOSHIKAZU (JP)
SHOJI MASAYUKI (JP)
NISHINA MASAYUKI (JP)
UEDA TOSHIO (JP)

Application Number:

PCT/JP2001/007829

Publication Date:

March 21, 2002

Filing Date:

September 10, 2001

Export Citation:

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Assignee:

DOWA MINING CO (JP)
TANOUE KOJI (JP)
OMOTO YOSHIKAZU (JP)
SHOJI MASAYUKI (JP)
NISHINA MASAYUKI (JP)
UEDA TOSHIO (JP)

International Classes:

C01G5/00; C01G29/00; C01G53/00; H01M4/06; H01M4/48; H01M4/54; H01M6/06; H01M10/32; H01M4/02; H01M6/12; (IPC1-7): H01M4/54; H01M4/06; H01M6/06

Foreign References:

US5389469A	1995-02-14
JPS52142241A	1977-11-28
JPS5611860A	1981-02-05
US4520005A	1985-05-28
JPS61136916A	1986-06-24

Other References: