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:
Apr. 19, 2022
Applicant:
Tdk Corporation, Tokyo, JP;
Inventor:
Ryosuke Kido, Tokyo, JP;
Assignee:
TDK CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/48 (2010.01); H01M 4/02 (2006.01); H01M 4/13 (2010.01); H01M 4/36 (2006.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
H01M 4/48 (2013.01); H01M 4/13 (2013.01); H01M 4/366 (2013.01); H01M 2004/027 (2013.01); H01M 10/0525 (2013.01);
Abstract
A lithium ion secondary battery includes: a positive electrode, a negative electrode, a separator located between the positive electrode and the negative electrode, and an electrolytic solution. The negative electrode includes a negative electrode active material which contains silicon oxide and a compound containing a first element. The electrolytic solution contains an imide salt which contains the first element and an imide anion. The first element is any one or more elements selected from the group consisting of K, Na, Mg, Ca, Cs, Al, and Zn.