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:
Jun. 18, 2019

Filed:

Jan. 30, 2017
Applicant:

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

Inventors:

Hiroya Umeyama, Okazaki, JP;

Yukinobu Miyamura, Osaka, JP;

Hiroaki Imanishi, Moriguchi, JP;

Assignee:

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 2/34 (2006.01); H01M 2/06 (2006.01); H01M 2/30 (2006.01); H01M 10/42 (2006.01); H01M 2/04 (2006.01);
U.S. Cl.
CPC ...
H01M 2/345 (2013.01); H01M 2/043 (2013.01); H01M 2/06 (2013.01); H01M 2/30 (2013.01); H01M 10/4235 (2013.01); H01M 2200/20 (2013.01); H01M 2220/20 (2013.01);
Abstract

A secondary battery includes: a battery element; a case housing the battery element; a positive-electrode external terminal and a negative-electrode external terminal provided outside the case and electrically connected to the battery element; and a short-circuiting mechanism configured to establish a short-circuit between the positive and negative external terminals through the case. The short-circuiting mechanism includes a conducting portion conductively connected to one of the positive and negative external terminals so as to face the case, an inversion plate provided at a portion of the case facing the conducting portion and configured to deform to approach the conducting portion when an internal pressure of the case rises, and a brazing material provided on one of the conducting portion and the inversion plate at a position between the conducting portion and the inversion plate.


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