NANOWIRE BASED ANODES FOR LITHIUM ION BATTERIES

摘要

One-dimensional, nanowire based materials are promising candidates for Lithium-ion battery electrodes due to their faster charge transport, better conducting pathways and good strain relaxation. In this paper, we present the use of metal oxide nanowire material systems as anodes for Li-ion batteries. The theoretical specific capacities of the metal oxides (650～950 mAhg~(-1)) are much higher than that of carbonaceous materials and they are semi conducting in nature. Of the various metal and metal oxide materials systems, both tin (Sn) and tin oxide (SnO_2) have a high capacity (Sn: 994 mAhg~(-1); SnO_2:781 mAhg~(-1)) compared to that of graphite (372 mAhg~(-1)).