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Open AccessFeature PaperCommunication

Redox Activity of Sodium Vanadium Oxides towards Oxidation in Na Ion Batteries

Normandie Univ, ENSICAEN, UNICAEN, CNRS, CRISMAT, 14000 Caen, France
Author to whom correspondence should be addressed.
Materials 2018, 11(6), 1021;
Received: 31 May 2018 / Revised: 13 June 2018 / Accepted: 13 June 2018 / Published: 15 June 2018
(This article belongs to the Special Issue Electrode Materials for High Performance Sodium-ion Batteries)
The search for new materials that could be used as electrode material for Na-ion batteries is one of the most challenging issues of today. Many transition metal oxide families as well as transition metal polyanionic frameworks have been proposed over the last five years. In this work, we report the sodium extraction from Na2V3O7, which is a tunnel type structure built of [V3O7]2− nanotubes held by sodium ions. We report a reversible charge capacity of 80 mAh/g at 2.8 V vs. Na+/Na due to the V5+/V4+ redox activity. No oxygen redox activity has been observed for this material nor for the vanadium (5+) oxide Na4V2O7. View Full-Text
Keywords: Na2V3O7; sodium vanadate; Na-ion batteries; Na4V2O7 Na2V3O7; sodium vanadate; Na-ion batteries; Na4V2O7
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MDPI and ACS Style

Adamczyk, E.; Gnanavel, M.; Pralong, V. Redox Activity of Sodium Vanadium Oxides towards Oxidation in Na Ion Batteries. Materials 2018, 11, 1021.

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