Interfacial Dual‐Modulation via Cationic Electrostatic Shielding and Anionic Preferential Adsorption toward Planar and Reversible Zinc Electrodeposition

Abstract Rechargeable aqueous zinc‐ion batteries (ZIBs) with low cost and high safety arouse most promises as next‐generation energy storage configurations. Yet the heterogeneous electric field distributions and interfacial side reactions are considered stumbling roadblocks toward the commercialization of ZIBs. Here, these challenges via cationic electrostatic shielding and anionic preferential adsorption by sodium gluconate (SG) additive are addressed. The polar functional groups (─COO − ) of SG anions preferentially anchor to the Zn anode, which can alter Zn 2+ migration pathways and restrain side reactions. Moreover, as per the smaller effective reduction potential, the separated cations (Na + ) from SG…

• NN
  National Natural Science Foundation of China

  Award: 22308066
• NS
  Natural Science Foundation of Guangxi Province

  Awards: 2023JJA20166, ZY23055002
• SR
  Specific Research Project of Guangxi for Research Bases and Talents

  Awards: AD23026311, AD22035174