Enhanced Zinc Deposition and Dendrite Suppression in Aqueous Zinc‐Ion Batteries Via Citric Acid‐Aspartame Electrolyte Additives

Abstract Despite the advantages of low cost, safety, and environmental friendliness, aqueous zinc‐ion batteries (AZIBs) encounter challenges such as zinc dendrite formation, severe side reactions, and electrolyte instability. Many effective additives exhibit limited solubility in water, thus reducing their practical application potential. In this study, a dissolution‐promoting strategy is proposed by introducing citric acid (CA) to enhance the dissolution of aspartame (APM), resulting in a zinc sulfate electrolyte. Simulations and experiments indicate that CA regulates both the solvation structure of Zn 2+ and the pH of the electrolyte, while APM preferentially integrates into the electric double layer to form…

• NN
  National Natural Science Foundation of China

  Award: No. 52263016 22265007
• NS
  Natural Science Foundation of Guangxi Province

  Award: No. 2022GXNSFAA035597 2023GXNSFAA026162 AB23075171