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. 21, 2023
Filed:
Feb. 18, 2020
Applicants:
SK Innovation Co., Ltd., Seoul, KR;
Unist(ulsan National Institute of Science and Technology), Ulsan, KR;
Inventors:
Joon Sup Kim, Daejeon, KR;
Jee Hee Lee, Daejeon, KR;
Nam Hyeong Kim, Ulsan, KR;
Jae Kyung Sung, Ulsan, KR;
Tae Yong Lee, Ulsan, KR;
Jae Phil Cho, Ulsan, KR;
Assignee:
SK ON CO., LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/587 (2010.01); H01M 10/052 (2010.01); H01M 4/36 (2006.01); H01M 4/58 (2010.01); H01M 4/38 (2006.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/587 (2013.01); H01M 4/364 (2013.01); H01M 4/366 (2013.01); H01M 4/386 (2013.01); H01M 4/58 (2013.01); H01M 10/052 (2013.01); H01M 2004/021 (2013.01); H01M 2004/027 (2013.01);
Abstract
Provided is a negative electrode active material for a lithium secondary battery according to the present invention, including a carbon-based particle including pores in an inner portion and/or a surface thereof; and a silicon-based coating layer positioned on a pore surface and/or a pore-free surface of the carbon-based particle and containing silicon carbon compound.