Title:
【発明の名称】リチウム二次電池用正極活物質の製造方法
Document Type and Number:
Japanese Patent JP3384280
Kind Code:
B2
Abstract:
A method for producing a cathode active material for a lithium secondary battery having a large initial capacity and excellent in the charging-discharging cycle characteristics, while restraining the generation of NO2, is provided. In the production method of a cathode active material for a lithium secondary battery made up of a complex oxide containing at least lithium, after adding a material generating oxygen on spray pyrolysis, such as nitric acid, hydrogen peroxide, etc., to an aqueous or alcohol solution of the organic acid salts of metal elements constituting the complex oxide, the mixture is subjected to spray pyrolysis to form a complex oxide, and the complex oxide is heat-treated. As the complex oxides, there are a lithium manganese complex oxide, a lithium cobalt complex oxide, a lithium nickel complex oxide, etc.
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Inventors:
Hirohisa Yamashita
Koji Hattori
Koji Hattori
Application Number:
JP11804397A
Publication Date:
March 10, 2003
Filing Date:
May 08, 1997
Export Citation:
Assignee:
MURATA MANUFACTURING CO.,LTD.
International Classes:
H01M10/05; C01G45/00; C01G45/02; C01G51/00; C01G53/00; H01M4/505; H01M4/525; (IPC1-7): H01M4/58
Domestic Patent References:
| JP950811A | ||||
| JP8277118A | ||||
| JP8217458A | ||||
| JP6219744A |