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Title:
CATHODE MATERIAL FOR LITHIUM BATTERY
Document Type and Number:
WIPO Patent Application WO2005005319
Kind Code:
A3
Abstract:
A method is disclosed for synthesizing a crystalline metal oxide powder material containing two or more uniformly distributed metal elements. Crystalline, water containing, oxygen containing inorganic acid salts of the metals are heated to liquefy the salts. The apparent solution contains a uniform mixture of the metal elements. The water is removed from the liquid and the resulting powder calcined in air to decompose the acid salts to a mixed metal crystalline oxide. The method is particularly useful to make doped LiNi02 type crystals using hydrated nitrate or nitrite salts of Li, Ni and the dopant elements. Examples of useful salts are LiN03-H2O, Ni(N03)2<.>6H20, Co(N03)2<.>6H2O, Al(NO3)3<.>9H20, and Mg(N03)2<.>6H20.

Inventors:
NAZRI GHOLAM-ABBAS
GARABEDIAN GREGORY CHARLES
Application Number:
PCT/US2004/016303
Publication Date:
June 02, 2005
Filing Date:
May 24, 2004
Export Citation:
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Assignee:
GEN MOTORS CORP (US)
International Classes:
C01D15/00; C01G1/02; C01G53/00; C01G; (IPC1-7): C01D15/00
Foreign References:
US20030031930A12003-02-13
Other References:
See also references of EP 1658235A4
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