Preparation of high tap-density 9LiFePO4·Li3V2(PO4)3/C composite cathode material by spray drying and post-calcining method
✍ Scribed by Shengkui Zhong; Ling Wu; Junchao Zheng; Jiequn Liu
- Book ID
- 113861015
- Publisher
- Elsevier Science
- Year
- 2012
- Tongue
- English
- Weight
- 642 KB
- Volume
- 219
- Category
- Article
- ISSN
- 0032-5910
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LiFePO 4 -Li 3 V 2 (PO 4 ) 3 composite cathode material is synthesized by aqueous precipitation of FeVO 4 •xH 2 O from Fe(NO 3 ) 3 and NH 4 VO 3 , following chemical reduction and lithiation with oxalic acid as the reducer and carbon source. Samples are characterized by XRD, SEM and TEM. XRD pattern
9LiFePO 4 •Li 3 V 2 (PO 4 ) 3 /C is synthesized via a carbon thermal reaction using petroleum coke as both reduction agent and carbon source. The as-prepared material is not a simple mixture of LiFePO 4 (LFP) and Li 3 V 2 (PO 4 ) 3 (LVP), but a composite possessing two phases: one is V-doped LFP and