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:
May. 10, 2022
Filed:
Sep. 07, 2020
Ningde Amperex Technology Limited, Fujian, CN;
Jing Jiang, Fujian, CN;
Liangzhen Xiao, Fujian, CN;
NINGDE AMPEREX TECHNOLOGY LIMITED, Fujian Province, CN;
Abstract
A wound electrode assembly, including a first electrode plate including a first current collector and a second electrode plate including a second current collector, wherein the second electrode plate includes a second empty foil segment, the second empty foil segment surrounds the first electrode plate, the second empty foil segment is configured as a tail segment of the second electrode plate, in the second empty foil segment, a surface of the second current collector opposite to the first electrode plate is coated with active substance, a surface of the second current collector away from the first electrode plate is coated with the active substance. The wound electrode assembly to effectively avoids lithium dendrite while improving the utilization of the battery material and the energy density of the battery, thereby improving the safety performance of the battery.