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:
Sep. 04, 2018
Filed:
Dec. 16, 2013
Satomi Kawase, Miyoshi, JP;
Satomi Kawase, Miyoshi, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, Aichi-ken, JP;
Abstract
A sealed battery () is provided with a current interrupting mechanism () that interrupts current that flows through an electrode body () when an internal pressure (F) of a battery case () exceeds an operating pressure (G). The current interrupting mechanism includes a movable member () that includes a moving portion (A) that moves with a rise in the internal pressure, and a conductive member () that is electrically connected to the electrode body. The conductive member () includes a protruding portion (A) that protrudes toward the moving portion. A weld (PT) created by welding using an energy beam is interposed between the protruding portion and the moving portion. The conductive member has, around the protruding portion, an annular groove (BG) that fractures in an annular shape surrounding the weld when the internal pressure exceeds the operating pressure. The protruding portion elastically pushes against the moving portion via the weld.