Manipulating Bilateral Interface Chemistry via Multifunctional Salt Additive for Durable Aqueous Zinc Batteries

Sustainable aqueous zinc ion batteries are promising for large-scale renewable energy integration due to their safety and reliability. However, unstable interfaces formed on both cathodes and anodes during cycling cause serious side reactions and continuous structural degradation. Enhancing interface stability is crucial toward the practical application of zinc–metal batteries. This paper presents an electrolyte engineering interface (EEI) strategy, using a low-cost, environment-friendly ammonium sulfamate (AS) with electron-withdrawing groups into ZnSO4 electrolyte as a self-sacrificial additive. The electron-donating effect promotes the formation of a lean-water and stable electrode/electrolyte interface,…

• NN
  National Natural Science Foundation of China

  Awards: 52334009, 52404423, 51874196
• SA
  Science and Technology Commission of Shanghai Municipality

  Awards: 23ZR1421600, 21DZ1208900, 19DZ2270200
• SL
  Songshan Lake Materials Laboratory

  Award: 2023SLABFK12