Spray-drying synthesis of Na2FePO4F/carbon powders for lithium-ion batteries

Magali Brisbois; Natacha Krins; Raphaël P. Hermann; Audrey Schrijnemakers; Rudi Cloots; Bénédicte Vertruyen; Frédéric Boschini

doi:10.1016/j.matlet.2014.05.121

Spray-drying synthesis of Na₂FePO₄F/carbon powders for lithium-ion batteries

Magali Brisbois, Natacha Krins, Raphaël P. Hermann, Audrey Schrijnemakers, Rudi Cloots, Bénédicte Vertruyen, Frédéric Boschini

Research output: Contribution to journal › Article › peer-review

29 Scopus citations

Abstract

Sodium iron fluorophosphate Na₂FePO₄F is a candidate positive electrode material for both lithium-ion batteries and sodium-ion batteries. We report the synthesis of Na₂FePO₄F/carbon powders by the simple and easily up-scalable technique of spray-drying. An aqueous solution containing citric acid as a carbon source was sprayed in a pilot-scale spray-dryer. Heat treatment at 600 °C in argon for 12 h was found appropriate to obtain single-phase Na₂FePO₄F; only 1.8% of Fe (III) was detected by iron-57 Mössbauer spectroscopy. When cycled against lithium, the discharge capacity reached 110 mA h/g at C/15 rate.

Original language	English
Pages (from-to)	263-266
Number of pages	4
Journal	Materials Letters
Volume	130
DOIs	https://doi.org/10.1016/j.matlet.2014.05.121
State	Published - Sep 1 2014
Externally published	Yes

Funding

Part of this work was supported by the Walloon Region under the “PE Plan Marshall 2.vert” program ( BATWAL-1318146 ). M.B. and N.K. thank FRIA (Grant no. 1.E056.11 ) and FRS-FNRS (Grant no. 1.B155.11 ) (Belgium) for research fellowships. The authors thank G. Eppe and C. Malherbe for Raman spectroscopy.

Funders	Funder number
Walloon Region
Fonds pour la Formation à la Recherche dans l’Industrie et dans l’Agriculture	E056.11

Keywords

Energy storage and conversion
Mössbauer
Powder technology
Spray-drying

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.matlet.2014.05.121

Cite this

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title = "Spray-drying synthesis of Na2FePO4F/carbon powders for lithium-ion batteries",

abstract = "Sodium iron fluorophosphate Na2FePO4F is a candidate positive electrode material for both lithium-ion batteries and sodium-ion batteries. We report the synthesis of Na2FePO4F/carbon powders by the simple and easily up-scalable technique of spray-drying. An aqueous solution containing citric acid as a carbon source was sprayed in a pilot-scale spray-dryer. Heat treatment at 600 °C in argon for 12 h was found appropriate to obtain single-phase Na2FePO4F; only 1.8% of Fe (III) was detected by iron-57 M{\"o}ssbauer spectroscopy. When cycled against lithium, the discharge capacity reached 110 mA h/g at C/15 rate.",

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AU - Brisbois, Magali

AU - Krins, Natacha

AU - Hermann, Raphaël P.

AU - Schrijnemakers, Audrey

AU - Cloots, Rudi

AU - Vertruyen, Bénédicte

AU - Boschini, Frédéric

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AB - Sodium iron fluorophosphate Na2FePO4F is a candidate positive electrode material for both lithium-ion batteries and sodium-ion batteries. We report the synthesis of Na2FePO4F/carbon powders by the simple and easily up-scalable technique of spray-drying. An aqueous solution containing citric acid as a carbon source was sprayed in a pilot-scale spray-dryer. Heat treatment at 600 °C in argon for 12 h was found appropriate to obtain single-phase Na2FePO4F; only 1.8% of Fe (III) was detected by iron-57 Mössbauer spectroscopy. When cycled against lithium, the discharge capacity reached 110 mA h/g at C/15 rate.

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