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. 14, 2023
Filed:
Feb. 22, 2019
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/62 (2006.01); H01M 4/133 (2010.01); H01M 4/66 (2006.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/623 (2013.01); H01M 4/133 (2013.01); H01M 4/663 (2013.01); H01M 2004/028 (2013.01);
Abstract
A positive electrode includes: a current collector; and a positive electrode active material layer disposed on the current collector, wherein the positive electrode active material layer includes a positive electrode active material, a conductive material, and a binder, the conductive material contains at least one of carbon black or a carbon nanotube and the binder contains polyvinylidene fluoride to which a functional group is bonded, and the functional group has a carboxyl group, and in the polyvinylidene fluoride to which the functional group is bonded.