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:
Jan. 27, 2026
Filed:
Mar. 03, 2020
Applicant:
Ningde Amperex Technology Limited, Ningde, CN;
Inventor:
Kefei Wang, Ningde, CN;
Assignee:
NINGDE AMPEREX TECHNOLOGY LIMITED, Ningde, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/66 (2006.01); H01M 4/36 (2006.01); H01M 10/0567 (2010.01); H01M 10/0569 (2010.01);
U.S. Cl.
CPC ...
H01M 4/364 (2013.01); H01M 4/366 (2013.01); H01M 4/661 (2013.01); H01M 4/663 (2013.01); H01M 10/0567 (2013.01); H01M 10/0569 (2013.01);
Abstract
An electrochemical device, including a cathode, an anode and an electrolyte. The cathode includes a cathode current collector and a cathode mixture layer formed on the cathode current collector. A dyne value of the cathode current collector is 25 dyn/cm to 31 dyn/cm. Burrs are provided on an edge of the cathode mixture layer, and a length of the burrs is not greater than 4 mm. The electrochemical device has improved cycle performance.