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:
Nov. 14, 2023
Filed:
Sep. 14, 2017
Applicant:
Nec Corporation, Tokyo, JP;
Inventors:
Suguru Tamai, Tokyo, JP;
Noboru Yoshida, Tokyo, JP;
Assignee:
NEC CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 10/0525 (2010.01); H01M 4/131 (2010.01); H01M 10/0567 (2010.01); H01M 10/058 (2010.01); H01M 4/62 (2006.01); H01M 4/485 (2010.01); H01M 4/60 (2006.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 10/0525 (2013.01); H01M 4/131 (2013.01); H01M 4/485 (2013.01); H01M 4/602 (2013.01); H01M 4/62 (2013.01); H01M 10/058 (2013.01); H01M 10/0567 (2013.01); H01M 2004/027 (2013.01); H01M 2220/20 (2013.01); Y02E 60/10 (2013.01); Y02T 10/70 (2013.01);
Abstract
The purpose of one embodiment of the present invention is to provide a lithium ion secondary battery which has improved cycle characteristics and the negative electrode of which comprises a silicon oxide. The present invention relates to a lithium ion secondary battery comprising a silicon oxide and an electrolyte solution comprising a fluorinated acid anhydride.