Crystal chemistry of Na insertion/deinsertion in FePO4–NaFePO4

Montse Casas-Cabanas; Vladimir V. Roddatis; Damien Saurel; Pierre Kubiak; Javier Carretero-González; Verónica Palomares; Paula Serras; Teófilo Rojo

doi:10.1039/C2JM33639A

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Crystal chemistry of Na insertion/deinsertion in FePO₄–NaFePO₄†

Montse Casas-Cabanas,*^a Vladimir V. Roddatis,^a Damien Saurel,^a Pierre Kubiak,^a Javier Carretero-González,^a Verónica Palomares,^b Paula Serras^b and Teófilo Rojo^ab

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* Corresponding authors

^a CIC energiGUNE, Parque Tecnológico de Álava, Albert Einstein 48, 01510 Miñano, Álava, Spain
E-mail: mcasas@cicenergigune.com
Tel: +34 945 297 108

^b Departamento de Química Inorgánica, Facultad de Ciencia y Tecnología, Universidad del País Vasco UPV/EHU, Apdo. 644, 48080 Bilbao, Spain

Abstract

In this paper we examine the mechanism of Na insertion and extraction in the FePO₄–NaFePO₄ system. Chemical preparation of the intermediate Na_1−xFePO₄ phase has revealed the existence of a range of stable compositions with different Na⁺/vacancy arrangements. The mechano-chemical aspects of the charge and discharge reactions are also discussed.

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Article information

DOI: https://doi.org/10.1039/C2JM33639A
Article type: Communication
Submitted: 06 Jun 2012
Accepted: 09 Jul 2012
First published: 10 Jul 2012

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J. Mater. Chem., 2012,22, 17421-17423

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Crystal chemistry of Na insertion/deinsertion in FePO₄–NaFePO₄

M. Casas-Cabanas, V. V. Roddatis, D. Saurel, P. Kubiak, J. Carretero-González, V. Palomares, P. Serras and T. Rojo, J. Mater. Chem., 2012, 22, 17421 DOI: 10.1039/C2JM33639A

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Journal of Materials Chemistry