| 초록 |
In this talk, I would like to introduce my current research on Si based anode materials for advanced lithium ion batteries. The Si/SiOx composite materials were being explored their commercial possibility as high performance anode materials for lithium ion batteries, but suffer from the complexity and limited synthetic routes for their preparation. Herein, Si/SiOx nanospheres were developed using a non-toxic and precious-metal-free preparation method based on hydrogen silsesquioxane (HSiO1.5) obtained from sol-gel reaction of triethoxysilane. The resulting Si/SiOx nanospheres with uniform carbon coating layer show excellent cycle performance and rate capability with high dimensional stability. This approach based on scalable sol-gel reaction enables not only the development of Si/SiOx with various nanostructured forms, but also reducing production cost for mass production of nanostructured Si/SiOx. |
