A High-Rate and Ultrastable Sodium Ion Anode Based on a Novel Sn4P3-P at Graphene Nanocomposite

Journal article (2017)

Authors

Y. Xu ChemE/Materials for Energy Conversion and Storage - AS
B. Peng ChemE/Materials for Energy Conversion and Storage - AS
F.M. Mulder ChemE/Materials for Energy Conversion and Storage - AS
Research Group
ChemE/Materials for Energy Conversion and Storage (AS) (TU Delft)
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Published Date

2017-9

Language

English

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Faculty

Applied Sciences

Department

ChemE/Chemical Engineering

Research Group

ChemE/Materials for Energy Conversion and Storage

Abstract

Phosphorus and tin phosphide based materials that are extensively researched as the anode for Na-ion batteries mostly involve complexly synthesized and sophisticated nanocomposites limiting their commercial viability. This work reports a Sn4P3-P (Sn:P = 1:3) at graphene nanocomposite synthesized with a novel and facile mechanochemical method, which exhibits unrivalled high-rate capacity retentions of >550 and 371 mA h g-1 at 1 and 2 A g-1, respectively, over 1000 cycles and achieves excellent rate capability (>815, ≈585 and ≈315 mA h g-1 at 0.1, 2, and 10 A g-1, respectively).

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