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:
Nov. 05, 2019
Filed:
Aug. 24, 2015
Nec Energy Devices, Ltd., Sagamihara-shi, Kanagawa, JP;
Envision AESC Energy Devices Ltd., Sagamihara-shi, Kanagawa, JP;
Abstract
An electrode for a secondary battery including an electrode laminated assembly that has a configuration in which electrodes and a separator are laminated, includes current collectorand active material layerformed on a surface of current collector. Active material layerincludes a thick-layer portion and a thin-layer portion that is positioned at an edge portion of the active material layer and that is smaller in thickness than the thick-layer portion, and is formed by discharging slurry containing an active material from discharge portof die headtoward the surface of current collector, the slurry being supplied to die headthrough coating valve. At the time of the formation of the thin-layer portion of active material layer, the slurry supplied through coating valvehaving a smaller opening amount than at the time of the formation of the thick-layer portion is discharged toward current collectorfrom discharge portthat is closer to current collectorthan at the time of the formation of the thick-layer portion.