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. 10, 2020
Filed:
Mar. 23, 2016
Nec Corporation, Tokyo, JP;
Makihiro Otohata, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
The secondary battery comprises: a battery elementhaving a positive electrodewherein positive active materialare applied on both surfaces of a positive current collector, a negative electrodewherein negative active materialare applied on both surfaces of a negative current collector, and a separator; a packaging film, made of a film that includes a heat-seal resin layer, for accommodating the battery element; wherein a melting point or a decomposition temperature of the separator is higher than a melting point of the heat-seal resin layer by 50° C. or more; and wherein, at least a part of the active material layerof the positive electrode or the negative electrode and the heat-seal resin layer are heat-sealed to each other at at least one surface of the upper surface and the lower surface of the battery element.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile