Method of preparing negative active material for a rechargeable lithium battery and a rechargeable lithium battery
AssigneesLG Chem, Ltd., Unist Academy-Industry Research Corporation
InventorsJaephil Cho, Min-Ho Seo, Mi-Hee Park, Hye-Jung Kim, Ki-Tae Kim, Je-Young Kim
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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.
Claims17
A method of preparing a negative active material for a rechargeable lithium battery comprising the steps of:
- a) mixing a silicon precursor, a surfactant comprising an ammonium halide salt having a organic group, an initiator, and a solvent;
- b) heat-treating the mixture;
- c) cooling the heat-treated mixture to room temperature;
- d) washing the cooled, heat-treated mixture;
- and
- e) calcining the washed product.
Dependencies are inferred from the claim text.