Ultra-rapid combustion synthesis of Na2FePO4F fluorophosphate host for Li-ion and Na-ion insertion

Sharma, Lalit and Bhatia, Ankush and Assaud, Loic and Franger, Sylvain and Barpanda, Prabeer (2018) Ultra-rapid combustion synthesis of Na2FePO4F fluorophosphate host for Li-ion and Na-ion insertion. In: IONICS, 24 (8). pp. 2187-2192.

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Abstract

Exploring soft-chemistry synthesis of Fe-based battery cathode materials, we have optimized combustion synthesis as an ultra-rapid approach to produce Na2FePO4F fluorophosphate cathode. It yields nanoscale, carbon-coated target product by annealing (at 600 A degrees C) for just 1 min. The purity of the material crystallizing in the orthorhombic structure was confirmed by powder X-ray diffraction pattern and XPS analysis, while the morphology was studied by scanning electron microscopy. The as-synthesized material exhibits good electrochemical performance delivering a first discharge capacity of more than 70 mAh/g at C/10 rate versus both Li+/Li and Na+/Na, hence acting as an efficient host for both Li-ion and Na-ion insertion. Combustion synthesis can be employed as an economic route for synthesis and rapid screening of various phosphate-based insertion materials.

Item Type:	Journal Article
Publication:	IONICS
Publisher:	SPRINGER HEIDELBERG, TIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANY
Additional Information:	Copyright of this article belong to SPRINGER HEIDELBERG, TIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANY
Department/Centre:	Division of Chemical Sciences > Materials Research Centre
Date Deposited:	30 Jul 2018 14:39
Last Modified:	25 Aug 2022 11:31
URI:	https://eprints.iisc.ac.in/id/eprint/60320

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