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. 26, 2016
Filed:
Jun. 13, 2012
Akinobu Nakamura, Tokyo, JP;
Akinobu Nakamura, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
It is an object of this exemplary embodiment to provide a lithium ion battery using a lithium manganese complex oxide, in which the dissolution of manganese and resistance increase are inhibited, and which is excellent in life characteristics at high temperature. One aspect of this exemplary embodiment is a lithium ion battery comprising at least a positive electrode comprising a positive electrode active material, and an electrolytic solution, wherein the positive electrode active material is a lithium manganese complex oxide, the positive electrode comprises a bismuth oxide, and a metal compound attached to part of a surface of the lithium manganese complex oxide, and a dissolution rate of a metal of the metal compound in the electrolytic solution is lower than a dissolution rate of manganese of the lithium manganese complex oxide.