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:
Mar. 12, 2024
Filed:
Feb. 18, 2021
Applicant:
Murata Manufacturing Co., Ltd., Kyoto, JP;
Inventors:
Nobuyuki Iwane, Kyoto, JP;
Hiroshi Horiuchi, Kyoto, JP;
Assignee:
Murata Manufacturing Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/131 (2010.01); H01M 4/525 (2010.01); H01M 4/62 (2006.01); H01M 4/66 (2006.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/131 (2013.01); H01M 4/525 (2013.01); H01M 4/623 (2013.01); H01M 4/661 (2013.01); H01M 10/0525 (2013.01); H01M 2004/028 (2013.01);
Abstract
A secondary battery includes a positive electrode, a negative electrode, and an electrolyte. The positive electrode includes a positive electrode active material layer that includes a positive electrode active material, a fluorine-based binder having a melting point from 152° C. to 166° C., a conductive assistant having a specific surface area from 1000 m/g to 1500 m/g, and a vinylpyrrolidone-based polymer.