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:
Oct. 31, 2017
Filed:
Oct. 27, 2014
Sanyo Electric Co., Ltd., Daito-shi, Osaka, JP;
Takahiro Fukuoka, Tokushima, JP;
Shuichi Yamashita, Tokushima, JP;
Yuma Yamaguchi, Tokushima, JP;
Yuki Iida, Tokushima, JP;
SANYO Electric Co., Ltd., Daito-shi, JP;
Abstract
A sealing body according to the present invention is sealing body for a sealed battery including conductive terminal cap, a conductive explosion-proof valve electrically connected to the terminal cap, a conductive terminal plate having an abutting surface abutting the explosion-proof valve, and an insulating plate disposed between the explosion-proof valve and the terminal plate. A welded part between the explosion-proof valve and the terminal plate is formed in the inner part of the abutting surface, and the plan-view shape of the welded part is a shape defining an enclosed region, a C-shape, or a spiral shape. A notch part surrounding the welded part is formed in the terminal plate. The breaking pressure of the welded part is higher than the breaking pressure of the notch part.