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. 19, 2023
Filed:
Feb. 27, 2019
Lg Chem, Ltd., Seoul, KR;
Su Min Lee, Daejeon, KR;
Je Young Kim, Daejeon, KR;
Yong Ju Lee, Daejeon, KR;
Sun Young Shin, Daejeon, KR;
LG ENERGY SOLUTION, LTD., Seoul, KR;
Abstract
The present invention relates to a negative electrode active material including a silicon-based composite and a carbon-based material, wherein the silicon-based composite includes SiO(0≤x≤2) including pores, a polymer disposed in the pores, and a metal compound disposed on a surface of the SiO(0≤x≤2) or on the surface and inside of the SiO(0≤x≤2), wherein the metal compound is a compound including at least one element selected from the group consisting of lithium (Li), magnesium (Mg), calcium (Ca), and aluminum (Al), a method of preparing the same, and a negative electrode and a lithium secondary battery which include the negative electrode active material.