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. 03, 2025
Filed:
Jan. 15, 2020
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventors:
Kenji Matsubara, Osaka, JP;
Nobuhiko Hojo, Osaka, JP;
Masanobu Takeuchi, Osaka, JP;
Atsushi Fukui, Hyogo, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/62 (2006.01); H01M 4/02 (2006.01); H01M 4/133 (2010.01); H01M 4/587 (2010.01); H01M 10/36 (2010.01); H01M 10/42 (2006.01);
U.S. Cl.
CPC ...
H01M 4/621 (2013.01); H01M 4/133 (2013.01); H01M 4/587 (2013.01); H01M 10/36 (2013.01); H01M 10/4235 (2013.01); H01M 2004/027 (2013.01); H01M 2300/0002 (2013.01);
Abstract
A secondary battery according to the present invention is provided with a positive electrode, a negative electrode and an electrolyte solution; the electrolyte solution contains water and a lithium salt; the negative electrode contains a negative electrode active material; a silane coupling agent, which is reductively decomposed at a potential that is higher than the reductive decomposition potential of water, is adhered to the surface of the negative electrode active material; and the silane coupling agent contains fluorine as a constituent element.