| 초록 |
Li ion batteries are useful energy storage devices for portable electronics application, electrical vehicles, and utility grids. However, there are strong needs of higher energy density and low price materials than what the LIB systems can provide. One of the most promising materials for next generation energy sources is magnesium because it is twice the specific capacity and much more abundant than lithium. On the other hand, disadvantages of Mg ion batteries would be narrow chemical windows of the electrolytes, and strong passivation on Mg metal surface. Only a few positive materials such as Chevrel phase Mo6S8, thin layer V2O5, and MoO3, have demonstrated Mg intercalation mechanism so far. In this presentation, the electrochemical intercalation properties of Mg2+ ion into a new host material, Mo4O6, have been characterized together with its structural changes in non-aqueous electrolyte system: Mg(ClO4)2. |
