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:
Aug. 25, 2015
Filed:
Jun. 09, 2010
Applicants:
Asami Ohashi, Tokyo, JP;
Yoshiyuki Ishii, Tokyo, JP;
Inventors:
Asami Ohashi, Tokyo, JP;
Yoshiyuki Ishii, Tokyo, JP;
Assignee:
ASAHI KASEI E-MATERIALS CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 10/0565 (2010.01); H01M 10/0567 (2010.01); H01M 10/0525 (2010.01); H01M 10/42 (2006.01); H01M 10/0569 (2010.01);
U.S. Cl.
CPC ...
H01M 10/0525 (2013.01); H01M 10/0565 (2013.01); H01M 10/0567 (2013.01); H01M 10/4235 (2013.01); H01M 10/0569 (2013.01); H01M 2300/0025 (2013.01); Y02E 60/122 (2013.01);
Abstract
The present invention provides an electrolyte solution and a lithium ion secondary battery which maintain for a long period high battery characteristics represented by the discharge capacity retention rate after the charge/discharge cycle, and simultaneously achieve also the high safety represented by the flame retardation. The present invention provides an electrolyte solution containing a nonaqueous solvent, an electrolyte, a specific compound having a perfluoroalkyl group in the molecule, and an additive having a fluorine atom and/or a phosphorus atom in the molecule.