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:
Jan. 14, 2020
Filed:
Jul. 14, 2016
Panasonic Corporation, Osaka, JP;
Isao Fujiwara, Hyogo, JP;
Hiromasa Yagi, Osaka, JP;
PANASONIC CORPORATION, Osaka, JP;
Abstract
A nonaqueous electrolyte secondary battery includes a conductive outer can, an electrode body in the outer can, a conductive seal plate tightly closing an open end of the outer can, and a cathode external terminal on the seal plate. The battery further includes a current cutoff mechanism (CID). The CID is located on the electrical conduction pathway between the cathode external terminal and the electrode body and interrupts the electrical coupling therebetween in response to an increased internal pressure in the battery. The CID includes a thin portion of the seal plate and a diaphragm. The diaphragm deforms to interrupt the electrical coupling between the cathode external terminal and the electrode body in response to the increase in the internal pressure in the battery. A cathode collector lead electrically couples the electrode body and the seal plate, and the seal plate connects the diaphragm and the cathode collector lead.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile