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A new family of cation-disordered Zn(Cu)-Si-P compounds as high-performance anodes for next-generation Li-ion batteries

Journal Article


Abstract


  • The development of low-cost, high-performance anode materials for Li-ion batteries (LIBs) is imperative to meet the ever-increasing demands for advanced power sources. Here we report our findings on the design, synthesis, and characterization of a new cation-disordered ZnSiP2 anode. When tested in LIBs, the disordered phase of ZnSiP2 demonstrates faster reaction kinetics and higher energy efficiency than the cation-ordered phase of ZnSiP2. The superior performance is attributed to the greater electronic and ionic conductivity and better tolerance against volume variation during cycling, as confirmed by theoretical calculations and experimental measurements. Moreover, the cation-disordered ZnSiP2/C composite exhibits excellent cycle stability and superior rate capability. The performance surpasses all reported multi-phase anodes studied. Further, a number of the cation-disordered phases in the Zn(Cu)-Si-P family with a wide range of cation ratios show similar performance, achieving large specific capacities and high first-cycle coulombic efficiency while maintaining desirable working potentials for enhanced safety.

Authors


  •   Li, Wenwu (external author)
  •   Li, Xinwei (external author)
  •   Liao, Jun (external author)
  •   Zhao, Bote (external author)
  •   Zhang, Lei (external author)
  •   Huang, Le (external author)
  •   Liu, Guoping (external author)
  •   Guo, Zaiping
  •   Liu, Meilin (external author)

Publication Date


  • 2019

Citation


  • Li, W., Li, X., Liao, J., Zhao, B., Zhang, L., Huang, L., Liu, G., Guo, Z. & Liu, M. (2019). A new family of cation-disordered Zn(Cu)-Si-P compounds as high-performance anodes for next-generation Li-ion batteries. Energy and Environmental Science, 12 (7), 2286-2297.

Scopus Eid


  • 2-s2.0-85069046807

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/3728

Number Of Pages


  • 11

Start Page


  • 2286

End Page


  • 2297

Volume


  • 12

Issue


  • 7

Place Of Publication


  • United Kingdom

Abstract


  • The development of low-cost, high-performance anode materials for Li-ion batteries (LIBs) is imperative to meet the ever-increasing demands for advanced power sources. Here we report our findings on the design, synthesis, and characterization of a new cation-disordered ZnSiP2 anode. When tested in LIBs, the disordered phase of ZnSiP2 demonstrates faster reaction kinetics and higher energy efficiency than the cation-ordered phase of ZnSiP2. The superior performance is attributed to the greater electronic and ionic conductivity and better tolerance against volume variation during cycling, as confirmed by theoretical calculations and experimental measurements. Moreover, the cation-disordered ZnSiP2/C composite exhibits excellent cycle stability and superior rate capability. The performance surpasses all reported multi-phase anodes studied. Further, a number of the cation-disordered phases in the Zn(Cu)-Si-P family with a wide range of cation ratios show similar performance, achieving large specific capacities and high first-cycle coulombic efficiency while maintaining desirable working potentials for enhanced safety.

Authors


  •   Li, Wenwu (external author)
  •   Li, Xinwei (external author)
  •   Liao, Jun (external author)
  •   Zhao, Bote (external author)
  •   Zhang, Lei (external author)
  •   Huang, Le (external author)
  •   Liu, Guoping (external author)
  •   Guo, Zaiping
  •   Liu, Meilin (external author)

Publication Date


  • 2019

Citation


  • Li, W., Li, X., Liao, J., Zhao, B., Zhang, L., Huang, L., Liu, G., Guo, Z. & Liu, M. (2019). A new family of cation-disordered Zn(Cu)-Si-P compounds as high-performance anodes for next-generation Li-ion batteries. Energy and Environmental Science, 12 (7), 2286-2297.

Scopus Eid


  • 2-s2.0-85069046807

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/3728

Number Of Pages


  • 11

Start Page


  • 2286

End Page


  • 2297

Volume


  • 12

Issue


  • 7

Place Of Publication


  • United Kingdom