| 초록 |
To date, The most widely used material as an anode in lithium rechargeable battery is graphite. But, The theoretical capacity of graphite is only 372mAh/g. Because limited capacity of the graphite, Tin will be an attractive alternative material of next generation as high theoretical capacity of ~900mAh/g. So, the large volume change (about 300%) of silicon from alloying/de-alloying lead to capacity fading by particle microcrack. In this work, we prepare a Tin nanoparticle (NP) deposited on graphite by solution process. The Sn NP is synthesized as Sn quantum dots in solution, and then it deposited on the surface of graphite. We try to enhance the capacity of anode in lithium rechargeable batteries by Sn NP on graphite composite. |
