ANODE ACTIVE MATERIAL PRECURSOR AND ACTIVE MATERIAL FOR A RECHARGEABLE LITHIUM BATTERY COMPRISING HOLLOW NANOFIBROUS CARBON, AND A PRODUCTION METHOD THEREFOR

摘要

Provided are an anode active material precursor and an active material for a recgargeable lithium battery comprising hollow nanofibrous carbon, and a production method thereof. The anode active material precursor for a rechargeable lithium battery comprising hollow nanofibrous carbon according to one embodiment of the present invention is a composite anode active material precursor for a rechargeable lithium battery comprising: hollow nanofibrous carbon; and an anode active material precursor joined to the skeleton of the hollow nanofibrous carbon, wherein the anode active material precursor comprises a metal composite represented by the following Formula 1-1 or Formula 1-2: Ma(PO 4 ) b · nH 2 O (Formula 1-1) and M(OH) c · nH 2 O (Formula 1-2); and a composite anode material for a rechargeable lithium battery according to the present invention is made electrically conductive by including a carbon substance, and the outside or the inside of the hollow nanofibrous carbon as well is charged with an olivine type lithium phosphate anode material. Consequently, it is possible to dramatically improve electrical conductivity which has been a shortcoming of olivine type lithium phosphate of the prior art, and it is possible to ensure a high capacity density suitable for high-capacity batteries since the anode active material is charged on the inside of the hollow nanofibrous carbon as well without wasting any space.