Skip to main content
placeholder image

Dendrite-Free Sodium Metal Anodes Enabled by a Sodium Benzenedithiolate-Rich Protection Layer

Journal Article


Abstract


  • © 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim Sodium metal is an ideal anode material for metal rechargeable batteries, owing to its high theoretical capacity (1166 mAh g−1), low cost, and earth-abundance. However, the dendritic growth upon Na plating, stemming from unstable solid electrolyte interphase (SEI) film, is a major and most notable problem. Here, a sodium benzenedithiolate (PhS2Na2)-rich protection layer is synthesized in situ on sodium by a facile method that effectively prevents dendrite growth in the carbonate electrolyte, leading to stabilized sodium metal electrodeposition for 400 cycles (800 h) of repeated plating/stripping at a current density of 1 mA cm−2. The organic salt, PhS2Na2, is found to be a critical component in the protection layer. This finding opens up a new and promising avenue, based on organic sodium slats, to stabilize sodium metals with a protection layer.

Authors


  •   Zhu, Ming (external author)
  •   Wang, Guanyao (external author)
  •   Liu, Xing (external author)
  •   Guo, Bingkun (external author)
  •   Xu, Gang (external author)
  •   Huang, Zhongyi (external author)
  •   Wu, Minghong (external author)
  •   Liu, Hua K.
  •   Dou, Shi Xue
  •   Wu, Chao

Publication Date


  • 2020

Citation


  • Zhu, M., Wang, G., Liu, X., Guo, B., Xu, G., Huang, Z., Wu, M., Liu, H., Dou, S. & Wu, C. (2020). Dendrite-Free Sodium Metal Anodes Enabled by a Sodium Benzenedithiolate-Rich Protection Layer. Angewandte Chemie - International Edition,

Scopus Eid


  • 2-s2.0-85079847021

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/4046

Has Global Citation Frequency


Place Of Publication


  • Germany

Abstract


  • © 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim Sodium metal is an ideal anode material for metal rechargeable batteries, owing to its high theoretical capacity (1166 mAh g−1), low cost, and earth-abundance. However, the dendritic growth upon Na plating, stemming from unstable solid electrolyte interphase (SEI) film, is a major and most notable problem. Here, a sodium benzenedithiolate (PhS2Na2)-rich protection layer is synthesized in situ on sodium by a facile method that effectively prevents dendrite growth in the carbonate electrolyte, leading to stabilized sodium metal electrodeposition for 400 cycles (800 h) of repeated plating/stripping at a current density of 1 mA cm−2. The organic salt, PhS2Na2, is found to be a critical component in the protection layer. This finding opens up a new and promising avenue, based on organic sodium slats, to stabilize sodium metals with a protection layer.

Authors


  •   Zhu, Ming (external author)
  •   Wang, Guanyao (external author)
  •   Liu, Xing (external author)
  •   Guo, Bingkun (external author)
  •   Xu, Gang (external author)
  •   Huang, Zhongyi (external author)
  •   Wu, Minghong (external author)
  •   Liu, Hua K.
  •   Dou, Shi Xue
  •   Wu, Chao

Publication Date


  • 2020

Citation


  • Zhu, M., Wang, G., Liu, X., Guo, B., Xu, G., Huang, Z., Wu, M., Liu, H., Dou, S. & Wu, C. (2020). Dendrite-Free Sodium Metal Anodes Enabled by a Sodium Benzenedithiolate-Rich Protection Layer. Angewandte Chemie - International Edition,

Scopus Eid


  • 2-s2.0-85079847021

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/4046

Has Global Citation Frequency


Place Of Publication


  • Germany