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:
Jan. 08, 2013
Filed:
Mar. 26, 2008
Atsuo Yamada, Kawasaki, JP;
Shogo Hayase, Shioya-gun, JP;
Yoshiki Fujita, Anan, JP;
Shinichi Nishimura, Yamato, JP;
Mamoru Tachikawa, Isehara, JP;
Takakazu Hino, Yokohama, JP;
Atsuo Yamada, Kawasaki, JP;
Shogo Hayase, Shioya-gun, JP;
Yoshiki Fujita, Anan, JP;
Shinichi Nishimura, Yamato, JP;
Mamoru Tachikawa, Isehara, JP;
Takakazu Hino, Yokohama, JP;
Tokyo Institute of Technology, Tokyo, JP;
Dow Corning Toray Co., Ltd, Tokyo, JP;
Abstract
The present invention has features in that a lithium transition metal silicate obtained by sintering a mixture containing a transition metal compound containing at least one transition metal selected from the group consisting of Mn, Fe, Co and Ni; a lithium compound; and a silicon-based polymer compound, is used as a positive electrode material for a secondary battery. The lithium transition metal silicate of the present invention has a high lithium occlusion and release efficiency per unit amount of a transition metal. A secondary battery in which the cost is low, stability and safety are high, and superior charge and discharge characteristics are exhibited can be provided.