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Superior Electrochemical Performance and Storage Mechanism of Na 3 V 2 (PO 4 ) 3 Cathode for Room‐Temperature Sodium‐Ion Batteries

Superior Electrochemical Performance and Storage Mechanism of Na 3 V 2 (PO 4 ) 3 Cathode for... A Na3V2(PO4)3/C composite with 3.8 wt.% carbon, which was synthesized by a one‐step solid state reaction, exhibits Na storage capacity of 107 mAh g−1 and high coulombic efficiency of 99.8% in a new NaFSI/PC electrolyte. In situ XRD results reveal its sodium storage mechanism as a typical two‐phase reaction from the Na3V2(PO4)3 to NaV2(PO4)3 phases with 8.26% volume variation. These desired properties make it very promising for application in room‐temperature sodium‐ ion batteries. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Advanced Energy Materials Wiley

Superior Electrochemical Performance and Storage Mechanism of Na 3 V 2 (PO 4 ) 3 Cathode for Room‐Temperature Sodium‐Ion Batteries

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References (29)

Publisher
Wiley
Copyright
Copyright © 2013 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim
ISSN
1614-6832
eISSN
1614-6840
DOI
10.1002/aenm.201200558
Publisher site
See Article on Publisher Site

Abstract

A Na3V2(PO4)3/C composite with 3.8 wt.% carbon, which was synthesized by a one‐step solid state reaction, exhibits Na storage capacity of 107 mAh g−1 and high coulombic efficiency of 99.8% in a new NaFSI/PC electrolyte. In situ XRD results reveal its sodium storage mechanism as a typical two‐phase reaction from the Na3V2(PO4)3 to NaV2(PO4)3 phases with 8.26% volume variation. These desired properties make it very promising for application in room‐temperature sodium‐ ion batteries.

Journal

Advanced Energy MaterialsWiley

Published: Feb 1, 2013

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