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:
Jan. 09, 2024
Filed:
Jan. 17, 2020
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Hee Won Choi, Daejeon, KR;
Je Young Kim, Daejeon, KR;
Sang Wook Woo, Daejeon, KR;
Li Lin Piao, Daejeon, KR;
Assignee:
LG ENERGY SOLUTION, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B 32/205 (2017.01); C01B 32/21 (2017.01);
U.S. Cl.
CPC ...
C01B 32/205 (2017.08); C01B 32/21 (2017.08); C01P 2004/32 (2013.01); C01P 2006/17 (2013.01);
Abstract
An anode active material for secondary batteries which has improved cycle swelling characteristics and rapid charge performance, an anode comprising same, and a method for manufacturing same, in which the anode active material is manufactured by modifying the surface of natural graphite particles. The natural graphite particles have a Dmax/Dmin value of 1.6 to 2.1 in the particle size distribution thereof and have, formed in the surface thereof, pores having a diameter of 0.5 μm to 2.0 μm.