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:
Aug. 09, 2016
Filed:
Dec. 31, 2013
Lg Chem, Ltd., Seoul, KR;
Unist (Ulsan National Institute of Science and Technology), Ulsan, KR;
Jaephil Cho, Gyeonggi-do, KR;
Jae-Bum Choo, Gyeonggi-do, KR;
Byung-Hee Han, Gyeonggi-do, KR;
Hyun-Jung Kim, Daegu, KR;
Ki-Tae Kim, Daejeon, KR;
Je-Young Kim, Daejeon, KR;
Abstract
The present invention relates to a method for preparing a negative-electrode active material for rechargeable lithium battery, wherein the negative-electrode active material comprises a core comprising material capable of doping and dedoping lithium; and, a carbon layer formed on the surface of the core, wherein the carbon layer has a three dimensional porous structure comprising nanopores regularly ordered on the carbon layer with a pore wall of specific thickness placed therebetween. In some embodiments, the method comprises modifying a material capable of doping and dedoping lithium with an organic functional group, mixing the modified material with an inorganic oxide, heating the mixture, and removing the inorganic oxide to form the negative-electrode active material.