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, 2021
Filed:
Mar. 21, 2019
Applicant:
Panasonic Corporation, Kadoma, JP;
Inventors:
Takanobu Chiga, Osaka, JP;
Naoya Morisawa, Hyogo, JP;
Kazuhiro Iida, Tokyo, JP;
Atsushi Fukui, Hyogo, JP;
Assignee:
PANASONIC CORPORATION, Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/525 (2010.01); H01M 10/0525 (2010.01); H01M 10/0567 (2010.01); H01M 10/0568 (2010.01); H01M 10/0569 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 10/0569 (2013.01); H01M 4/525 (2013.01); H01M 10/0525 (2013.01); H01M 10/0567 (2013.01); H01M 10/0568 (2013.01); H01M 2004/028 (2013.01); H01M 2300/004 (2013.01);
Abstract
A nonaqueous electrolyte includes a lithium salt, a trifluoropropionate ester of the formula (1), and a fluorinated carboxylate ester of the formula (2). The amount of (1) is not less than 10 mass % of the nonaqueous electrolyte. In the formulae, R1 is a Calkyl group, one or two of X1 to X4 are fluorine atoms, R2 is a hydrogen atom, a Calkyl group or a fluorinated Calkyl group, and R3 is a Calkyl group or a fluorinated Calkyl group.