Invention Grant
US09306209B2 Method of preparing negative active material containing a carbon-coated silicon core for a rechargeable lithium battery and a rechargeable lithium battery
有权
制备负极活性物质的方法，所述负极活性物质含有用于可再充电锂电池和可再充电锂电池的碳涂覆硅芯
- Patent Title: Method of preparing negative active material containing a carbon-coated silicon core for a rechargeable lithium battery and a rechargeable lithium battery
- Patent Title (中): 制备负极活性物质的方法，所述负极活性物质含有用于可再充电锂电池和可再充电锂电池的碳涂覆硅芯
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Application No.: US13006921Application Date: 2011-01-14
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Publication No.: US09306209B2Publication Date: 2016-04-05
- Inventor: Jaephil Cho , Min-Ho Seo , Mi-Hee Park , Hye-Jung Kim , Ki-Tae Kim , Je-Young Kim
- Applicant: Jaephil Cho , Min-Ho Seo , Mi-Hee Park , Hye-Jung Kim , Ki-Tae Kim , Je-Young Kim
- Applicant Address: KR KR
- Assignee: ULSAN National Institute of Science and Technology,LG Chem, Ltd.
- Current Assignee: ULSAN National Institute of Science and Technology,LG Chem, Ltd.
- Current Assignee Address: KR KR
- Agency: Lerner, David, Littenberg, Krumholz & Mentlik, LLP
- Priority: KR10-2010-0036079 20100419
- Main IPC: H01M4/04
- IPC: H01M4/04 ; H01M4/36 ; H01M4/38 ; H01M4/62 ; H01M4/134
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.
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