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:
Feb. 26, 2019
Filed:
Jan. 16, 2015
Nec Energy Devices, Ltd., Sagamihara-shi, Kanagawa, JP;
Kimiyoshi Fukatsu, Kanagawa, JP;
Tomohiko Hayashi, Kanagawa, JP;
NEC ENERGY DEVICES, LTD., Sagamihara-shi, Kanagawa, JP;
Abstract
Electrodefor a secondary battery to be laminated with another type of electrode, with separatorinterposed therebetween, to constitute a battery electrode assembly, is comprised of collectorand active material layerformed on collector, and electrodeincludes a coated part in which active material layeris formed on collectorand an uncoated part in which active material layeris not formed on collector. Active material layerincludes, in at least a part of the outer peripheral portion of the coated part, high density parthaving a smaller thickness and a higher density than those of a portion other than the outer peripheral portion.