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:
Oct. 18, 2022
Filed:
May. 27, 2020
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Assignee:
LG ENERGY SOLUTION, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/133 (2010.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/133 (2013.01); H01M 10/0525 (2013.01); C01P 2002/74 (2013.01); H01M 2004/021 (2013.01); H01M 2004/027 (2013.01);
Abstract
A negative electrode active material including artificial graphite secondary particles comprising artificial graphite primary particles having an average particle diameter (D50) of 10 nm to 9 μm, said artificial graphite secondary particles being formed by granulating said artificial graphite primary particles, wherein a value (V) obtained by dividing a minimum particle diameter (D) of the secondary particles by the average particle diameter (D) of the initial particles is 0.50 to 0.8, and a value (V) obtained by dividing the minimum particle diameter (D) of the secondary particles by an average particle diameter (D) of the secondary particles is 0.23 to 0.4.