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:
Jul. 12, 2016
Filed:
Jun. 17, 2010
Ki-tae Kim, Daejeon, KR;
Soon-ho Ahn, Daejeon, KR;
Je-young Kim, Daejeon, KR;
Jaephil Cho, Ulsan, KR;
Mi-hee Park, Gyeongsangnam-do, KR;
Ki-Tae Kim, Daejeon, KR;
Soon-Ho Ahn, Daejeon, KR;
Je-Young Kim, Daejeon, KR;
Jaephil Cho, Ulsan, KR;
Mi-Hee Park, Gyeongsangnam-do, KR;
LG Chem, Ltd., , KR;
Abstract
The present invention relates to negative-electrode active material for a lithium secondary battery exhibiting excellent capacity property and cycle life property, a method of preparing the same, and a lithium secondary battery using the negative-electrode active material, wherein the negative-electrode active material for a lithium secondary battery comprises a nanotube having a tube shape defined by an outer wall with a thickness of nanoscale, the outer wall of the nanotube comprises at least one non-carbonaceous material selected from the group consisting of silicon, germanium and antimony, and an amorphous carbon layer with a thickness of 5 nm or less is formed on the outer wall of the nanotube.