Sn4P3/SbSn Nanocomposites for Anode Application in Sodium‐Ion Batteries. Issue 17 (4th July 2018)

• Record Type: Journal Article
• Authors: Lan, Danni; Li, Quan
• Is Part Of: ChemElectroChem. Volume 5:Issue 17(2018)
• Page Start: 2383
• Page End: 2386
• Publication Date: 2018-07-04
• Subjects: tin phosphide -- antimony tin alloy -- nanocomposites -- sodium-ion batteries; Electrochemistry -- Periodicals; 541.37
• DOI: 10.1002/celc.201800639
• Languages: English
• ISSNs: 2196-0216

Abstract

Abstract: A facile one‐pot solvothermal method has been developed to synthesize Sn4 P3 /SbSn nanocomposites with a side‐by‐side configuration in individual nanoparticles. We show that introducing SbSn to Sn4 P3 in such a configuration can improve the cyclic stability of the phase‐pure Sn4 P3 electrode without sacrificing its practical capacity, although the theoretical capacity of SbSn is lower than that of Sn4 P3 . The nanocomposite anode delivers a highest capacity of 614.7 mA h g −1 at a current density of 100 mA g −1 and shows superior capacity retention to the phase pure Sn4 P3, SbSn, or physical mixture of Sn4 P3 &SbSn based anodes after long cycles. The intact interface between the Sn4 P3 and SbSn in the nanocomposite and their synergetic effect play important roles in enhancing the electrochemical performance of the composite electrode. Abstract : Better together : Sn4 P3 /SbSn nanocomposites are synthesized, which exhibit a superior electrochemical performance to binary Sn4 P3 ‐based anodes when used for sodium ion batteries.