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:
Mar. 21, 2017
Filed:
Nov. 20, 2013
Applicant:
Nec Corporation, Tokyo, JP;
Inventors:
Makiko Takahashi, Tokyo, JP;
Takehiro Noguchi, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 10/052 (2010.01); H01M 10/0569 (2010.01); H01M 4/62 (2006.01); H01M 10/0567 (2010.01); H01M 2/02 (2006.01); H01M 4/58 (2010.01); H01M 10/0525 (2010.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01);
U.S. Cl.
CPC ...
H01M 10/0569 (2013.01); H01M 2/0207 (2013.01); H01M 4/5825 (2013.01); H01M 4/62 (2013.01); H01M 10/0525 (2013.01); H01M 10/0567 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 2300/0028 (2013.01); Y02E 60/122 (2013.01); Y02P 70/54 (2015.11);
Abstract
A lithium ion secondary battery which is a non-aqueous electrolyte secondary battery comprising a positive electrode comprising a positive electrode active material capable of absorbing and releasing lithium, and an electrolyte solution comprising a non-aqueous electrolyte solvent, wherein the positive electrode comprises a sulfate group, and the non-aqueous electrolyte solvent comprises a sulfone compound represented by a specified formula.