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:
Jun. 21, 2016
Filed:
Sep. 27, 2011
Applicants:
Daisuke Kawasaki, Tokyo, JP;
Kenichi Shimura, Tokyo, JP;
Yoko Hashizume, Tokyo, JP;
Inventors:
Assignee:
NEC Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/0566 (2010.01); H01M 4/34 (2006.01); H01M 4/38 (2006.01); H01M 4/48 (2010.01); H01M 4/58 (2010.01); H01M 10/052 (2010.01); H01M 10/0567 (2010.01); H01M 10/0569 (2010.01); H01M 4/62 (2006.01); H01M 4/36 (2006.01); H01M 4/485 (2010.01); H01M 4/587 (2010.01);
U.S. Cl.
CPC ...
H01M 10/0566 (2013.01); H01M 4/364 (2013.01); H01M 4/386 (2013.01); H01M 4/485 (2013.01); H01M 4/587 (2013.01); H01M 10/052 (2013.01); H01M 10/0567 (2013.01); H01M 10/0569 (2013.01); H01M 4/622 (2013.01); H01M 2300/004 (2013.01); H01M 2300/0034 (2013.01); H01M 2300/0037 (2013.01); Y02E 60/122 (2013.01); Y02T 10/7011 (2013.01);
Abstract
The object is to provide a secondary battery which has an excellent cycle property even in high-temperature environment and which has small resistance increase even when it is used in high-temperature environment. An exemplary embodiment of the invention is a secondary battery, comprising: a positive electrode, a negative electrode, and an electrolyte liquid; wherein the electrolyte liquid comprises a chain-type fluorinated sulfone compound represented by a predetermined formula.