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:
Feb. 18, 2025
Filed:
Mar. 24, 2022
Applicant:
Murata Manufacturing Co., Ltd., Kyoto, JP;
Inventors:
Takuju Hashimoto, Kyoto, JP;
Yuki Niwata, Kyoto, JP;
Assignee:
Murata Manufacturing Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/525 (2010.01); C01G 51/42 (2025.01); H01M 10/0525 (2010.01); H01M 10/0569 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/525 (2013.01); C01G 51/42 (2013.01); H01M 10/0525 (2013.01); H01M 10/0569 (2013.01); C01P 2002/50 (2013.01); C01P 2006/40 (2013.01); H01M 2004/028 (2013.01); H01M 2300/0037 (2013.01);
Abstract
A secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution. The positive electrode includes a positive electrode active material particle. The positive electrode active material particle includes a layered rock-salt lithium composite oxide and a spinel metal oxide. The positive electrode active material particle has therein the spinel metal oxide provided on at least a surface of a particle including the layered rock-salt lithium composite oxide. The electrolytic solution includes a chain carboxylic acid ester and a cyclic ether.