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Na2FePO4F Fluorophosphate as Positive Insertion Material for Aqueous Sodium-Ion Batteries

Sharma, Lalit and Nakamoto, Kosuke and Sakamoto, Ryo and Okada, Shigeto and Barpanda, Prabeer (2019) Na2FePO4F Fluorophosphate as Positive Insertion Material for Aqueous Sodium-Ion Batteries. In: CHEMELECTROCHEM, 6 (2). pp. 444-449.

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Official URL: https://doi.org/10.1002/celc.201801314


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.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to WILEY-V C H VERLAG GMBH
Keywords: aqueous sodium-ion batteries; cathode materials; fluorophosphates; Na2FePO4F; NaTi2(PO4)(3) anode
Department/Centre: Division of Chemical Sciences > Materials Research Centre
Date Deposited: 14 Feb 2019 05:55
Last Modified: 14 Feb 2019 05:55
URI: http://eprints.iisc.ac.in/id/eprint/61707

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