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:
Apr. 24, 2018
Filed:
Dec. 25, 2013
Hitachi Automotive Systems, Ltd., Ibaraki, JP;
HITACHI AUTOMOTIVE SYSTEMS, LTD., Ibaraki, JP;
Abstract
A rectangular secondary battery () includes a current interrupting portion () disposed in a current path between a collector plate () connected to a rolled electrode group () and an external terminal () and configured to interrupt the current path when an internal pressure of a battery container () is increased. The current interrupting portion () has a diaphragm () whose top portion () is electrically connected to the collector plate () and whose edge portion () is electrically connected to the external terminal (). The diaphragm () is formed into a convex shape protruding inside the battery container () and into a planar shape elongated in a longitudinal direction of the battery container ().