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:
Mar. 05, 2019
Filed:
Dec. 25, 2013
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, Ibaraki, JP;
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, 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 () disposed outside a battery container () and configured to interrupt the current path when an internal pressure of the battery container () is increased. The current interrupting portion () has a diaphragm () electrically connected to the external terminal () and deformed when the internal pressure of the battery container () is increased, a connection plate () connected to the diaphragm and disconnected from the diaphragm by the deformation of the diaphragm, and a connecting portion () connecting the connection plate and collector plate. A rigidity of the connecting portion () is lower than that of the collector plate ().