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:
May. 14, 2013
Filed:
Mar. 27, 2008
Masayuki Uegami, Yamaguchi-ken, JP;
Akihisa Kajiyama, Yamaguchi-ken, JP;
Kazutoshi Ishizaki, Yamaguchi-ken, JP;
Hideaki Sadamura, Yamaguchi-ken, JP;
Masayuki Uegami, Yamaguchi-ken, JP;
Akihisa Kajiyama, Yamaguchi-ken, JP;
Kazutoshi Ishizaki, Yamaguchi-ken, JP;
Hideaki Sadamura, Yamaguchi-ken, JP;
Toda Kogyo Corporation, Otake-shi, Hiroshima-ken, JP;
Abstract
The present invention aims at providing lithium manganate having a high output and an excellent high-temperature stability. The above aim can be achieved by lithium manganate particles having a primary particle diameter of not less than 1 μm and an average particle diameter (D) of kinetic particles of not less than 1 μm and not more than 10 μm, which are substantially in the form of single crystal particles and have a composition represented by the following chemical formula: LiMnYOin which Y is at least one element selected from the group consisting of Al, Mg and Co; x and y satisfy 0.03≦x≦0.15 and 0.05≦y≦0.20, respectively, wherein the Y element is uniformly dispersed within the respective particles, and an intensity ratio of I(400)/I(111) thereof is not less than 33% and an intensity ratio of I(440)/I(111) thereof is not less than 16%.