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:
Mar. 28, 2017

Filed:

Mar. 29, 2013
Applicants:

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

Primearth Ev Energy Co., Ltd., Kosai-shi, Shizuoka, JP;

Inventors:

Hiroyuki Nakayama, Toyota, JP;

Satoshi Suzuki, Toyota, JP;

Takashi Harayama, Toyota, JP;

Youichi Naruse, Nagoya, JP;

Kaoru Kajita, Toyohashi, JP;

Toshiya Okada, Toyota, JP;

Takamasa Kajiwara, Hamamatsu, JP;

Assignees:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 2/02 (2006.01); H01M 2/04 (2006.01); H01M 10/04 (2006.01); H01M 2/30 (2006.01); H01M 2/22 (2006.01);
U.S. Cl.
CPC ...
H01M 2/021 (2013.01); H01M 2/024 (2013.01); H01M 2/0217 (2013.01); H01M 2/0426 (2013.01); H01M 2/0439 (2013.01); H01M 2/0473 (2013.01); H01M 2/22 (2013.01); H01M 2/30 (2013.01); H01M 10/04 (2013.01); Y10T 29/4911 (2015.01);
Abstract

A battery includes an external terminal member and an insulating member on an outer surface of a lid member so that an interval between the insulating member and the lid member is smaller in a long side of the lid member than in a short side. A weld mark is formed over the entire circumference of the lid member to extend across the outer surface of the lid member and an open end face of the case body. The weld mark not only extends across the outer surface of the lid member and the open end face of the case body but also reaches an outer side surface of the case body in a zone of the long side of the lid member facing the insulating member, but does not reach the outer side surface of the case body in a zone except the former zone.


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