Electrically Insulating Rigid Multi-Channel Electrolyte Container for Customizable Electron Transfer in Zn-Halogen Batteries

Abstract Recent advancements in Zn-halogen batteries have focused on enhancing the adsorptive or catalytic capability of host materials and stabilizing complex intermediates with electrolyte additives, while the halogen-ion electrolyte modifications exhibit strong potential for integrated interfacial regulation. Herein, we design an electrically insulating rigid electrolyte container to immobilize a liquid halogen-ion electrolyte for separator-free Zn-halogen batteries with customizable electron transfer. Robust hydrogen bonding of hydroxyl groups in SiO 2 with fluorinated moieties in PVDF- hfp regulates Zn 2+ solvation and suppresses H 2 O activity, while multi-channels formed by microcracks and interparticle…

• NN
  National Natural Science Foundation of China

  Award: 2023QNRC001
• DY
  Distinguished Young Scholar Foundation of Hunan Province