Reactivity of charged LiVPO4F with 1M LiPF6 EC:DEC electrolyte at high temperature as studied by accelerating rate calorimetry
2008; Elsevier BV; Volume: 11; Issue: 3 Linguagem: Inglês
10.1016/j.elecom.2008.12.052
ISSN1873-1902
AutoresFu Zhou, Xuemei Zhao, J. R. Dahn,
Tópico(s)Extraction and Separation Processes
ResumoLithium vanadium fluorophosphate (LiVPO4F), was synthesized using a two-step reaction scheme based on a carbothermal reduction (CTR) process. Electrochemical tests showed that LiVPO4F 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 LiVPO4F and 1 M LiPF6 EC:DEC electrolyte showed that the thermal stability of LiVPO4F is even better than LiFePO4.
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