Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9761723 | Solid State Ionics | 2005 | 5 Pages |
Abstract
Cobalt phosphides and lithiated cobalt phosphides are prepared by high-energy ball-milling at room temperature. With increasing the milling time, the phosphide structure is converted from CoP3 to CoP phase. The initial electrochemical lithiation of CoPx (CoP3+CoP) and CoP leads to a reversible capacity of 878 and 533 mAh/g. The faradic yield at the first cycle is about 74% for both the samples. Partial lithiation of the CoPx by ball-milling with Li3N reactant enhances the initial faradic yield to 95%, along with a sacrifice of part of the reversible capacity. The lithiation by thermoreaction, however, results in poor electrochemical performance.
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Zongshuang Zhang, Jun Yang, Yanna Nuli, Baofeng Wang, Jinqiang Xu,