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:
Sep. 10, 2019
Filed:
Jul. 31, 2017
Applicant:
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Inventors:
Kazuhisa Takeda, Toyota, JP;
Keisuke Ohara, Nagoya, JP;
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, Aichi-ken, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/62 (2006.01); H01M 4/36 (2006.01); H01M 4/587 (2010.01); H01M 10/0525 (2010.01); H01M 10/0568 (2010.01); H01M 10/0569 (2010.01);
U.S. Cl.
CPC ...
H01M 4/624 (2013.01); H01M 4/366 (2013.01); H01M 4/587 (2013.01); H01M 4/62 (2013.01); H01M 10/0525 (2013.01); H01M 10/0568 (2013.01); H01M 10/0569 (2013.01); H01M 2300/0037 (2013.01);
Abstract
A lithium ion secondary battery includes a negative electrode, a positive electrode, and a non-aqueous electrolyte solution. The non-aqueous electrolyte solution includes a lithium salt and an aprotic solvent. The negative electrode includes a composite particle. The composite particle includes a negative electrode active material and tungsten trioxide. The negative electrode active material contains graphite. The tungsten trioxide is disposed on a surface of the negative electrode active material.