| 초록 |
Graphene has been reported through the existing research that it has extraordinary electrical properties. It has been widely used for new electrode material and electrochemical fields. In our previous study, we confirmed that it had been increased in the ionic conductivity when we used graphene and lithium manganese oxide to make cathode active material for lithium-ion batteries. In this study, graphene was prepared through chemical exfoliation method. Its morphology was observed by SEM and TEM. The structure has been confirmed by using Raman and XPS. Cathode materials for sodium-ion battery were prepared using graphene, sodium and transition metal. The electrochemical properties of the cathode active material have been evaluated. |
