Hydrogen Bond Competition Optimizing Aqueous Zn Ion Solvation and (002) Interfacial Deposition with Ultralong Stability

Abstract Aqueous zinc‐ion batteries have garnered significant interest due to their inherent safety, cost‐effectiveness, and high capacity. However, water molecules in the electrolyte adsorb onto the surface of the negative zinc electrode via hydrogen bonding and dissociate into H + and OH − under an electric field. This creates a local alkaline environment at the interface, promoting zinc dendrite growth, surface corrosion, and hydrogen evolution reaction. Herein, a hydrogen bond competition strategy for optimizing aqueous electrolytes based on low‐cost polyhydroxyl organic additive maltitol is proposed. The addition of maltitol disrupts the hydrogen bond network of the aqueous electrolyte and reduces the…

• NN
  National Natural Science Foundation of China

  Awards: 51804199, 52474330
• SS
  Shenzhen Science and Technology Innovation Program

  Award: KQTD20180412181422399