中國有色金屬學報(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 21 No. 8 August 2011 |
（1. School of Chemical Engineering, Sichuan University, Chengdu 610065, China;
2. School of Materials Science and Engineering, Sichuan University, Chengdu 610065, China）
Abstract:LiFePO4-Li3V2(PO4)3 composites were synthesized by solid-hydrothermal method and by ball milling, respectively. The electrochemical performance of the solid-hydrothermally obtained materials (C-LFVP) was significantly improved compared with LiFePO4 (LFP) and Li3V2(PO4)3 (LVP), and it was also much better than that of the ball-milled LiFePO4-Li3V2(PO4)3 (P-LFVP). C-LFVP and P-LFVP both had four REDOX peaks (voltage plateaus), which coincided with that of LFP and LVP. Some new trace substances were found in C-LFVP which had more perfect morphology, this was responsible for the better electrochemical performance of C-LFVP than P-LFVP.
Key words: LiFePO4; Li3V2(PO4)3; composite materials; solid-hydrothermal
