|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Nanocomposites IV: Nanoscience for Renewable Energy
||Fabrication of Silicon/Graphite Nanocomposite as Promising Anode Material for Lithium-ion Battery Applications
||Maziar Ashuri, Qianran He, Leon L. Shaw
|On-Site Speaker (Planned)
Silicon with more than 4000 mA h g-1 theoretical capacity is one of the most promising candidates among other anode materials for Li-ion batteries. However, it suffer from huge volume change during charge/discharge process. Several strategies have been proposed to overcome this issue such as core-shell and yolk-shell nanostructures, Si nanotubes, etc. However, most of them requires expensive equipment, long time synthesis, and special set up. In this study, we try to look at the old silicon/graphite composite with the new approach of etching. To fabricate the composite, silicon and graphite were ball-milled together. Then, the obtained nanocomposite was coated with a thin carbon shell. The last step was etching the carbon-coated nanocomposite. The etchant used was 0.5 M sodium hydroxide solution. The product was washed with deionized waster and applied as active material for half cells. The electrochemical results showed improved performance comparing to crystalline silicon.
||Planned: Supplemental Proceedings volume