期刊
CHEMELECTROCHEM
卷 6, 期 2, 页码 444-449出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/celc.201801314
关键词
aqueous sodium-ion batteries; cathode materials; fluorophosphates; Na2FePO4F; NaTi2(PO4)(3) anode
资金
- Department of Atomic Energy (DAE)
- Ministry of Human Resource Development (MHRD, Govt. of India)
Exploring stable and economic cathodes for aqueous sodium-ion batteries, we have investigated iron-based fluorophosphate (Na2FePO4F) as a compound for applications in aqueous battery systems. Solution combustion synthesized Na2FePO4F is found to act as an efficient cathode for aqueous Na-ion batteries delivering a reversible capacity over 85 mAh g(-1) (at a rate of 1 mA cm(-2)) with excellent rate kinetics. Further, this layered Na2FePO4F has been successfully implemented to design a full aqueous cell with NASICON-type NaTi2(PO4)(3) as anode, delivering a reversible capacity of 90 mAh g(-1). In conclusion, Na2FePO4F is proposed as a potential cathode material for aqueous Na-ion batteries.
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