NaSn2(PO4)3 submicro-particles for high performance Na/Li mixed-ion battery anodes

Beibei Zhao, Xudong Zhang, Guogang Xu, Kwan San Hui, Jiefang Zhu, Wen He

Research output: Contribution to journalArticle

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Abstract

NaSn2(PO4)3 has open framework, high ionic conductivity, low working potential, high theoretical capacity more than twice of graphite. However, its commercial application is limited by its low electrical conductivity and rapid capacity fading. To overcome this challenge, we synthesize NaSn2(PO4)3 submicro-particles (around 100–300 nm in size) by hydrothermally assisted pyrolysis reactions. The synthesized NaSn2(PO4)3 anode for Na/Li mixed-ion batteries delivers an ultrahigh initial discharge capacities, excellent rate performance and superior cycling stability. This design provides a promising pathway for developing high performance mixed-ion batteries.
Original languageEnglish
Article number156082
JournalJournal of Alloys and Compounds
Volume844
Early online date30 Jun 2020
DOIs
Publication statusPublished - 5 Dec 2020

Keywords

  • Electrochemistry
  • Ionic conductors
  • Lithium-ion batteries
  • Na/Li mixed-ion diffusion

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