NASICON-type air-stable and all-climate cathode for sodium-ion batteries with low cost and high-power density

Abstract The development of low-cost and long-lasting all-climate cathode materials for the sodium ion battery has been one of the key issues for the success of large-scale energy storage. One option is the utilization of earth-abundant elements such as iron. Here, we synthesize a NASICON-type tuneable Na 4 Fe 3 (PO 4 ) 2 (P 2 O 7 )/C nanocomposite which shows both excellent rate performance and outstanding cycling stability over more than 4400 cycles. Its air stability and all-climate properties are investigated, and its potential as the sodium host in full cells has been studied. A remarkably low volume change of 4.0% is observed. Its high sodium diffusion coefficient has been measured and analysed via…

• AS
  Australian Synchrotron
• NN
  National Natural Science Foundation of China

  Awards: DP160102627, 61427901, 21771164, 11704114, 61427901, U1804129, 11704114
• CP
  China Postdoctoral Science Foundation

  Award: 2017M620872
• NS
  Natural Science Foundation of Hunan Province

  Award: 2018JJ3110
• AR
  Australian Renewable Energy Agency
• AR
  Australian Research Council

  Awards: ARC DP160102627, DP160102627
• DE
  Deutsches Elektronen-Synchrotron