In‐Situ Integration of a Hydrophobic and Fast‐Zn 2+ ‐Conductive Inorganic Interphase to Stabilize Zn Metal Anodes

Abstract The irreversible issues of Zn anode stemming from dendrite growth and water‐induced erosion have severely hindered the commercialization of rechargeable aqueous Zn batteries. Herein, a hydrophobic and fast‐Zn 2+ ‐conductive zinc hexacyanoferrate (HB‐ZnHCF) interphase layer is in situ integrated on Zn by a rapid room‐temperature wet‐chemistry method to address these dilemmas. Different from currently proposed hydrophilic inorganic cases, the hydrophobic and compact HB‐ZnHCF interphase effectively prevents the access of water molecules to Zn surface, thus avoiding H 2 evolution and Zn corrosion. Moreover, the HB‐ZnHCF with large internal ion channels, strong zincophilicity, and high Zn 2+ transference…

• NN
  National Natural Science Foundation of China

  Awards: 22075067, 22075016
• NS
  Natural Science Foundation of Hebei Province

  Award: B2020201001
• HU
  Hebei University

  Award: hxkytd2102