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:
Dec. 26, 2017
Filed:
Mar. 31, 2014
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Byoung Hoon Ahn, Daejeon, KR;
Chang-Wan Koo, Daejeon, KR;
Joon Sung Bae, Daejeon, KR;
Jae Bin Chung, Daejeon, KR;
Assignee:
LG Chem, Ltd., , KR;
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/587 (2010.01); C01B 31/04 (2006.01); H01M 4/133 (2010.01); H01M 4/1393 (2010.01); H01M 4/36 (2006.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/587 (2013.01); C01B 31/04 (2013.01); H01M 4/133 (2013.01); H01M 4/1393 (2013.01); H01M 4/364 (2013.01); H01M 4/622 (2013.01); H01M 10/0525 (2013.01); H01M 2004/021 (2013.01);
Abstract
Disclosed is an anode active material for lithium secondary batteries that includes natural graphite particles consisting of spherical particles of agglomerated graphite sheets, outer surfaces of which are not coated with a carbon-based material, wherein the surfaces of the particles have a degree of amorphization of at least 0.3 within a range within which an R value [R=I/I] (Iis the intensity of Raman around 1350 cmand Iis the intensity of Raman around 1580 cm) of a Raman spectrum is in the range of 0.30 to 1.0.