| 초록 |
An anode material of lithium ion battery, recently, the anatase TiO2 attracted a much attention due to its higher operating voltage and structural stability during the electrochemical reactions. However, the poor electrical conductivity and lower ionic diffusion are the main drawbacks of the bulk TiO2. TO solve these problems, coating with conducting materials or N doping has been considered. Herein, we prepared the N doped graphene-N doped carbon/TiO2-TiN (NG-NC/TiO2-TiN) via the carbonization of GO-Polyaniline/TiO2 (GO-PANI/TiO2) nanocomposites. The N rich PANI acting as a nitrogen dopant to GO and TiO2, and gives the respective NG and TiO2-TiN. In lithium battery anode, the NG-NC/TiO2-TiN gives the higher specific capacity and excellent cycle stability in comparison to C/TiO2 and pristine TiO2 microsphere. |
