| 초록 |
Graphite, as an anode material, has been generally employed in commercial Li-ion batteries (LIBs) to increase the storage ability of Li ions. However, since its theoretical capacity (372 mAhg-1) is not sufficient for achieving a LIB with high energy/power density, transition metal oxides (MxOy: M=Co, Fe, Ni, Cu, Mn, etc.) having superior specific capacity have attracted attention. However, bulk transition metal oxides are still far from application as LIB anode materials owing to their poor electrical conductivity and lithiation induced volume expansion (~ 300 %). Thus, fabrication of high performance transition metal oxide electrode materials with large reversible capacities and excellent reliability is highly required. Herein, metal oxide-decorated three-dimensional carbon structures were prepared as an anode material of a LIB. They show an improved electrical conductivity and specific surface area compared to the transition metal oxides. |
