| 초록 |
Recently, intensive studies are still necessary to develop anode materials with high performance because commercial graphite has a low specific capacity of 372 mAh g-1. To solve the issue, many researchers introduced heteroatoms (N, B, S and F) on surface of graphene. It is well-known that the heteroatoms and defects, which are generated during the doping process, act as additional Li storage sites, leading to improvement of reversible capacity for the battery with the graphene. Furthermore, expanded interlayer distance of the carbon materials due to the heteroatoms can induce rapid diffusion rates of Li ions. However, facile synthetic methods to enable uniform doping of the heteroatoms should be developed in order to use the graphene for anode materials. In this study, we will report a facile method to dope the fluorine, which is the highest electronegativity, on the graphene and relationship between the fluorine contents and the battery performance. |
