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:
Apr. 05, 2016
Filed:
Jan. 14, 2011
Jaephil Cho, Ulsan, KR;
Min-ho Seo, Daegu, KR;
Mi-hee Park, Gyeongsangnam-do, KR;
Hye-jung Kim, Ulsan-si, KR;
Ki-tae Kim, Daejeon, KR;
Je-young Kim, Daejeon, KR;
Jaephil Cho, Ulsan, KR;
Min-Ho Seo, Daegu, KR;
Mi-Hee Park, Gyeongsangnam-do, KR;
Hye-Jung Kim, Ulsan-si, KR;
Ki-Tae Kim, Daejeon, KR;
Je-Young Kim, Daejeon, KR;
Abstract
The present invention provides a method of preparing a negative active material for a rechargeable lithium battery, comprising the steps of: mixing a silicon precursor, a surfactant comprising an ammonium halide salt having a organic group, an initiator, and a solvent; heat-treating the mixture; cooling the heat-treated mixture to room temperature; washing the cooled, heat treated mixture; and calcining the washed product.