The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 01, 2011
Filed:
Jun. 25, 2008
Applicants:
Motoharu Saito, Hyogo, JP;
Masahisa Fujimoto, Osaka, JP;
Katsutoshi Takeda, Tokushima, JP;
Inventors:
Assignee:
Sanyo Electric Co., Ltd., Moriguchi-shi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/58 (2010.01); B05D 5/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
A positive electrode active material is formed of a lithium containing layered oxide. The lithium containing layered oxide contains either or both of LiNaMnCoOthat belongs to a space group P6mc or LiNaMnCoOthat belongs to a space group Cmca. The lithium containing layered oxide contains the LiNaMnCoOas a solid solution, a mixture or both of them. In the LiNaMnCoO, 0.5≦A≦1.2, 0<B≦0.01, 0.40≦x≦0.55, 0.40≦y≦0.55, 0.80≦x+y≦1.10 and 0≦α≦0.3.