Abstract

Lithium vanadium fluorophosphate (LiVPO 4F), was synthesized using a two-step reaction scheme based on a carbothermal reduction (CTR) process. Electrochemical tests showed that LiVPO 4F displayed a specific reversible capacity of 125 mAh/g in a plateau near 4.2 V and excellent capacity retention. Accelerating rate calorimetry (ARC) tests of the reactions between delithiated LiVPO 4F and 1 M LiPF 6 EC:DEC electrolyte showed that the thermal stability of LiVPO 4F is even better than LiFePO 4.

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