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:
Dec. 30, 2025
Filed:
Aug. 11, 2020
Lg Chem, Ltd., Seoul, KR;
Joo Hong Jin, Daejeon, KR;
Min Kyu You, Daejeon, KR;
Sun Sik Shin, Daejeon, KR;
Kyung Lok Lee, Daejeon, KR;
Ji A Shin, Daejeon, KR;
LG Chem, Ltd., Seoul, KR;
Abstract
A positive electrode includes: a positive electrode active material layer formed on a surface of a positive electrode current collector, including two types of positive electrode active materials with different average particle diameters (D), a conductive material, and a binder; and a carbon-based coating layer formed on a surface of the positive electrode active material layer. The two types of positive electrode active materials are each represented by Chemical Formula 1 below. The carbon-based coating layer includes a sphere-type conductive material and a binder, where the binder is included in an amount of 5 parts by weight or more and less than 10 parts by weight with respect to 100 parts by weight of the carbon-based coating layer.LiNiCoMO [Chemical Formula 1] In Chemical Formula 1, 0≤a≤0.5, 0<x<1, 0<y<1, 0<z<1, and M is at least one of Mn and Al.