| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1558561 | New Carbon Materials | 2008 | 6 Pages |
Abstract
Two kinds of modified natural graphite (MNG) spheres with a pyrolytic carbon shell on smooth or granular surface were obtained using fluidized bed chemical vapor deposition of acetylene by adjusting the reaction parameters. The core of the MNG has a highly ordered graphite structure and the shell has a disordered structure. Compared with natural graphite (NG) spheres, MNG with a core-shell structure shows improved first cycling efficiency and cyclability. Especially, the MNG spheres with a granular surface possess 84% retention of the first discharge capacity after 41cycles, owing to effective decrease of the contact resistance and increase of contact area between the MNG spheres.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Chemistry
Authors
Shu-he LIU, Zhe YING, Zuo-ming WANG, Feng LI, Shuo BAI, Lei WEN, Hui-ming CHENG,