Higher energy and safer sodium ion batteries via an electrochemically made disordered Na3V2(PO4)2F3 material

Na3V2(PO4)2F3 is a promising cathode material for Na-ion batteries, although its third sodium is usually not accessible electrochemically. Here the authors realize a disordered tetragonal NVPF phase, which can reversibly uptake 3 Na-ions and enables improved energy density for the NVPF/C full cell.

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Detalles Bibliográficos
Autores principales: Guochun Yan, Sathiya Mariyappan, Gwenaelle Rousse, Quentin Jacquet, Michael Deschamps, Renald David, Boris Mirvaux, John William Freeland, Jean-Marie Tarascon
Formato: article
Lenguaje:EN
Publicado: Nature Portfolio 2019
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Acceso en línea:https://doaj.org/article/7e0d07d56ee6431ba9d007caadd3c1ea
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Sumario:Na3V2(PO4)2F3 is a promising cathode material for Na-ion batteries, although its third sodium is usually not accessible electrochemically. Here the authors realize a disordered tetragonal NVPF phase, which can reversibly uptake 3 Na-ions and enables improved energy density for the NVPF/C full cell.