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:
May. 06, 2025
Filed:
May. 21, 2020
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventors:
Tasuku Ishiguro, Osaka, JP;
Yasuko Nozaki, Osaka, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 10/0567 (2009.12); H01M 4/505 (2009.12); H01M 4/525 (2009.12); H01M 10/0525 (2009.12); H01M 10/0568 (2009.12); H01M 4/02 (2005.12);
U.S. Cl.
CPC ...
H01M 10/0567 (2012.12); H01M 4/505 (2012.12); H01M 4/525 (2012.12); H01M 10/0525 (2012.12); H01M 10/0568 (2012.12); H01M 2004/028 (2012.12); H01M 2300/0025 (2012.12);
Abstract
A non-aqueous electrolyte secondary battery having a positive electrode, a separator, a negative electrode opposed to the positive electrode via the separator, and a liquid electrolyte wherein the liquid electrolyte includes a lithium salt, methyl acetate, and dimethyl sulfone. The content ratio of methyl acetate in the liquid electrolyte is 10% by mass to 40% by mass, and the content ratio of dimethyl sulfone in the liquid electrolyte is 0.1% by mass to 5% by mass.