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.

Date of Patent:
Feb. 25, 2020

Filed:

Nov. 04, 2015
Applicant:

Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;

Inventor:

Keiichiro Kobayashi, Nisshin, JP;

Assignee:

TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, Aichi-ken, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 2/02 (2006.01); H01M 10/0525 (2010.01); H01M 10/0587 (2010.01);
U.S. Cl.
CPC ...
H01M 10/0525 (2013.01); H01M 2/0217 (2013.01); H01M 2/0237 (2013.01); H01M 10/0587 (2013.01);
Abstract

Provided is a nonaqueous electrolyte secondary battery in which a flat wound electrode body, a nonaqueous electrolytic solution, and an insulating film are accommodated in a quadrilateral battery case. The insulating film is formed into a bag shape corresponding to a shape of the electrode body and is arranged between an inner wall of the battery case and the electrode body. An entire surface of a bottom-side R portion of two R portions of the electrode body, which faces a bottom surface of the battery case, and an inside of the bag-shaped insulating film, which faces the bottom-side R portion of the electrode body, are joined to each other.


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