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:
Sep. 03, 2024
Filed:
Oct. 05, 2022
Lg Energy Solution, Ltd., Seoul, KR;
Seung Won Park, Daejeon, KR;
Yo Han Kwon, Daejeon, KR;
Je Young Kim, Daejeon, KR;
Seok Koo Kim, Daejeon, KR;
Wang Mo Jung, Daejeon, KR;
Chul Haeng Lee, Daejeon, KR;
Byung Chun Park, Daejeon, KR;
LG Energy Solution, Ltd., Seoul, KR;
Abstract
A lithium secondary battery including: a negative electrode; a positive electrode; a separator disposed between the negative electrode and the positive electrode; and an electrolyte, wherein the negative electrode includes SiOx (where 0<x<2) and a carbon-based negative electrode active material, the positive electrode includes a positive electrode active material including a lithium-rich manganese-based oxide in which a manganese content in the total metal except lithium is greater than 50 mol %, and a ratio (Li/Me) of the number of moles of lithium to a total number of moles of metals except lithium is greater than 1, and the depth of using SiOx defined by the disclosed Equation (1) in a state of SOC 0% is 1 to 15, preferably 3 to 15.