Title:
リチウム含有複合酸化物並びにその製造方法
Document Type and Number:
Japanese Patent JP4172622
Kind Code:
B2
Abstract:
A lithium-containing complex oxide exhibits a high performance as a cathode active material of a lithium secondary cell or the like and having a high tap density. A granular lithium-containing complex oxide, such as lithium manganese complex oxide, is made up of "complex oxide grains produced by integrating lithium-rich material grains abnormally grown during a firing reaction with the surfaces of the base grains by sintering." The number of complex oxide grains is not more than 50 per gram of the complex grains. A metal oxide such as manganese oxide and lithium carbonate not more than 5 mum in average grain size are mixed by means of a mixer which grinds and mixes particles by using a shearing force and heated and fired at a warming rate of not more than 50° C./h., thus producing the lithium-containing complex oxide.
Inventors:
Yoshio Kajiya
Hiroshi Tasaki
Hiroshi Tasaki
Application Number:
JP2002108801A
Publication Date:
October 29, 2008
Filing Date:
April 11, 2002
Export Citation:
Assignee:
Nikko Metal Co., Ltd.
International Classes:
C01G45/00; C01G45/12; H01M4/36; H01M4/485; H01M4/505; H01M4/58; H01M10/05; H01M4/02
Domestic Patent References:
| JP11185754A | ||||
| JP2000143246A | ||||
| JP2000281349A | ||||
| JP5198301A | ||||
| JP2001307729A |
Attorney, Agent or Firm:
Takeshi Imai