Title:
リチウム二次電池用正極活物質及びその製造方法
Document Type and Number:
Japanese Patent JP4153125
Kind Code:
B2
Abstract:
Disclosed is active material for a positive electrode used in lithium secondary batteries of Formula 1 below and a method of manufacturing the active material. The active material includes large particles of 1 to 25 mum formed of a plurality of minute particles of 0.4 to 0.7 mum. The method includes the steps of adding a chelating agent to a mixture derived by dissolving lithium salt, nickel salt and cobalt salt in a solvent to a molar ratio of 0.95-1.06: 0.5-1:0-0.5; producing a gel by heating the mixture; for precursor by thermally decomposing the gel; and heat treating the precursor.where x is between 0.95 and 1.06, and y is between 0 and 0.5.
Inventors:
Ho-ma
Money
Park Dongpo
Money
Park Dongpo
Application Number:
JP16871999A
Publication Date:
September 17, 2008
Filing Date:
May 13, 1999
Export Citation:
Assignee:
SAMSUNG SDI Co., LTD.
International Classes:
H01M10/05; C01G51/00; C01G53/00; H01M4/525
Domestic Patent References:
| JP8250120A |
Attorney, Agent or Firm:
Hidekazu Miyoshi