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. 08, 2011
Filed:
Mar. 22, 2006
Daisuke Endo, Kyoto, JP;
Tokuo Inamasu, Kyoto, JP;
Toshiyuki Nukuda, Kyoto, JP;
Yoshihiro Katayama, Kyoto, JP;
Daisuke Endo, Kyoto, JP;
Tokuo Inamasu, Kyoto, JP;
Toshiyuki Nukuda, Kyoto, JP;
Yoshihiro Katayama, Kyoto, JP;
GS Yuasa International Ltd., Kyoto-Shi, Tokyo, JP;
Abstract
It is an object of the present invention to provide an active material for lithium ion battery having an excellent discharge capacity in the potential flat part and a high-performance and long-life lithium ion battery, and particularly to provide a technology of improving voltage flatness. The present invention provides an active material for lithium ion battery represented by a composition formula: Li[LiMgTi]O(0<x<1/2) in which a part of the element of lithium titanate is substituted with Mg, and a lithium ion battery using this active material as a negative electrode active material.