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:
Nov. 24, 2015
Filed:
Jan. 25, 2013
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Sanyo Electric Co., Ltd., Moriguchi-shi, Osaka, JP;
Hironori Harada, Aichi-ken, JP;
Hiroshi Inukai, Toyota, JP;
Toshihiro Takada, Toyota, JP;
Yasuhiro Yamauchi, Kasai, JP;
Yoshinori Yokoyama, Kasai, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
Provided is a sealed secondary battery having a current interrupt mechanism with a high heat resistance that prevents fusion of the current collecting plate by the Joule heat generated during high-rate charge and discharged. A current interrupt mechanismof a sealed secondary batteryprovided in accordance with the present invention is configured such that when the internal pressure inside a battery caserises above the predetermined level, a current interrupt valveis deformed by the internal pressure in a direction of separating from a rectangular plate-shaped current collecting plateand the current collecting plate breaks in the portion of an annular grooveof a central thin sectionof the current collecting plate.