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:
Mar. 10, 2020
Filed:
Apr. 22, 2015
Applicant:
Nexeon Ltd, Oxfordshire, GB;
Inventors:
Young Tai Cho, Seoul, KR;
Seung Chul Park, Daejeon, KR;
Seon Park, Daejeon, KR;
Hee Young Seo, Daejeon, KR;
Jee Hye Park, Daejeon, KR;
Yong Eui Lee, Gyeonggi-do, KR;
Chul Hwan Kim, Daejeon, KR;
Assignee:
Nexeon Ltd, Oxfordshire, GB;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/134 (2010.01); H01M 4/38 (2006.01); H01M 10/052 (2010.01); H01M 4/36 (2006.01); H01M 10/0525 (2010.01); H01M 4/62 (2006.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/134 (2013.01); H01M 4/366 (2013.01); H01M 4/38 (2013.01); H01M 4/386 (2013.01); H01M 10/052 (2013.01); H01M 10/0525 (2013.01); H01M 4/625 (2013.01); H01M 4/626 (2013.01); H01M 2004/021 (2013.01); H01M 2004/027 (2013.01); H01M 2220/10 (2013.01); H01M 2220/20 (2013.01); H01M 2220/30 (2013.01);
Abstract
Provided is a negative active material and a lithium secondary battery including the negative active material. The negative active material for a secondary battery includes silicon particles, wherein circularities of the particles are determined by equation 1 below, and the circularities are 0.5 or greater and 0.9 or less,Circularity=2()  [Equation 1]