Highly Stable Mesoporous Ge@C Sphere Anodes for Lithium-ion Batteries
- DOI
- 10.2991/emcpe-16.2016.104How to use a DOI?
- Keywords
- highly stable; mesoporous; germanium; anode; lithium-ion batteries
- Abstract
The Mesoporous Ge@C sphere has been designed via a modified St”ber method and an in-situ solution deposition. Compared with the pure Ge nanoparticles, the as-synthesized Mesoporous Ge@C sphere nanocomposites show much better cycling stability and rate capability. That as-prepared anode material can maintain a reversible capacity of 708.8mAhg-1 after 200 cycles at a rate of 0.2C, and even at 5C, it also exhibits a high discharge capacity of ~522.4mAhg-1. The superior comprehensive electrochemical performance of the electrode is ascribed to the synergic effects of the porous structure and hollow carbon sphere, which can effectively alleviate the structural strain and suppress large volume changes, additionally, can reduce electrolyte diffusion path length beneficial to allow rapid electron transportation and let more Li+ flux across the interface.
- Copyright
- © 2016, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Chen Cheng AU - Jing Xu AU - Kai Xie PY - 2016/08 DA - 2016/08 TI - Highly Stable Mesoporous Ge@C Sphere Anodes for Lithium-ion Batteries BT - Proceedings of the 2016 5th International Conference on Environment, Materials, Chemistry and Power Electronics PB - Atlantis Press SN - 2352-5401 UR - https://doi.org/10.2991/emcpe-16.2016.104 DO - 10.2991/emcpe-16.2016.104 ID - Cheng2016/08 ER -