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. 09, 2017
Filed:
Jan. 23, 2012
Hiroyuki Nishide, Tokyo, JP;
Kenichi Oyaizu, Tokyo, JP;
Hiroki Yakushiji, Tokyo, JP;
Shigeyuki Iwasa, Tokyo, JP;
Kentaro Nakahara, Tokyo, JP;
Hiroyuki Nishide, Tokyo, JP;
Kenichi Oyaizu, Tokyo, JP;
Hiroki Yakushiji, Tokyo, JP;
Shigeyuki Iwasa, Tokyo, JP;
Kentaro Nakahara, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
In a secondary battery utilizing redox by a radical site, charge-discharge is carried out in such a manner that a lithium ion moves between a positive electrode and a negative electrode (rocking chair-type). An anion in an amount necessary for electrode doping during charge-discharge is made unnecessary, thereby reducing the amount of an electrolytic solution. A secondary battery with a large energy density is achieved. Provided is an electrode active material including at least one polymer including a radical site capable of being converted into a first cation, and an anion site capable of being bonded with the first cation or a second cation.