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. 15, 2022
Filed:
Oct. 12, 2017
Applicant:
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Inventors:
Shinsuke Matsuhara, Miyoshi, JP;
Kazuhisa Takeda, Toyota, JP;
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 50/449 (2021.01); H01M 10/0587 (2010.01); H01M 4/62 (2006.01); H01M 10/04 (2006.01); H01M 50/46 (2021.01); H01M 10/0565 (2010.01); C08G 65/08 (2006.01);
U.S. Cl.
CPC ...
H01M 50/449 (2021.01); H01M 4/62 (2013.01); H01M 4/622 (2013.01); H01M 10/0431 (2013.01); H01M 10/0565 (2013.01); H01M 10/0587 (2013.01); H01M 50/461 (2021.01); C08G 65/08 (2013.01); H01M 2300/0085 (2013.01);
Abstract
A nonaqueous electrolyte secondary battery includes a flat wound electrode body that includes a positive electrode sheet, a negative electrode sheet, and a separator sheet, and a nonaqueous electrolyte. The wound electrode body includes a filling layer containing a thermal polymerization product of a resin having electrolyte solution swellability between the negative electrode sheet and the separator sheet.