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:
Jun. 20, 2023
Filed:
Aug. 07, 2019
Ningde Amperex Technology Limited, Ningde, CN;
DONGGUAN POWERAMP TECHNOLOGY LIMITED, Dongguan, CN;
Abstract
A lithium secondary battery is disclosed which includes a cathode having a first cathode region and a second cathode region adjacent to the first cathode region, wherein the second cathode region is adjacent to an uncoated region of the cathode substrate; an anode, the anode having a first anode region and a second anode region adjacent to the first anode region, wherein the second anode region is adjacent to an uncoated region of the anode substrate, wherein a value Cis a ratio of a direct current resistance value Rof the first anode region to a direct current resistance value Rof the first cathode region; wherein a value Cis a ratio of a direct current resistance value Rof the second anode region to a direct current resistance value Rof the second cathode region; and wherein C<C.