Negative-electrode active material for rechargeable lithium battery
AssigneesUnist Academy-Industry Research Corporation, LG Chem, Ltd.
InventorsJaephil Cho, Jae-Bum Choo, Byung-Hee Han, Hyun-Jung Kim, Ki-Tae Kim, Je-Young Kim
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Abstract
The present invention relates to negative-electrode active material for rechargeable lithium battery comprising: 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.
Claims10
A method for preparing negative-electrode active material for rechargeable lithium battery comprising the steps of:
- modifying material capable of doping and dedoping lithium with organic functional groups;
- mixing the material capable of doping and dedoping lithium modified with the organic functional group with inorganic oxide;
- heating the mixture;
- and
- removing the inorganic oxide.
Dependencies are inferred from the claim text.