biostudies-literatureGao XEngineering and Physical Sciences Research Councile202300608https://www.ebi.ac.uk/biostudies/studies/S-EPMC10946563biostudies-literatureUnknown62(16)The electrochemical effect of isotope (EEI) of water is introduced in the Zn-ion batteries (ZIBs) electrolyte to deal with the challenge of severe side reactions and massive gas production. Due to the low diffusion and strong coordination of ions in D₂ O, the possibility of side reactions is decreased, resulting in a broader electrochemically stable potential window, less pH change, and less zinc hydroxide sulfate (ZHS) generation during cycling. Moreover, we demonstrate that D₂ O eliminates the different ZHS phases generated by the change of bound water during cycling because of the consistently low local ion and molecule concentration, resulting in a stable interface between the electrode and electrolyte. The full cells with D₂ O-based electrolyte demonstAngewandte Chemie (International ed. in English)When It's Heavier: Interfacial and Solvation Chemistry of Isotopes in Aqueous Electrolytes for Zn-ion Batteries.PMC10946563EP/V027433/1EP/V027433/3EP/V027433/2EP/V027433/1; EP/V027433/2Li JZong WHe GHu XHe HDu ZDai YZhang WWang MLiu YParkin IPZhu JZhao SDong HZhang YCarmalt CJGuo FZhao FGao XZhang CChen RfalseWhen It's Heavier: Interfacial and Solvation Chemistry of Isotopes in Aqueous Electrolytes for Zn-ion Batteries.The electrochemical effect of isotope (EEI) of water is introduced in the Zn-ion batteries (ZIBs) electrolyte to deal with the challenge of severe side reactions and massive gas production. Due to the low diffusion and strong coordination of ions in D₂ O, the possibility of side reactions is decreased, resulting in a broader electrochemically stable potential window, less pH change, and less zinc hydroxide sulfate (ZHS) generation during cycling. Moreover, we demonstrate that D₂ O eliminates the different ZHS phases generated by the change of bound water during cycling because of the consistently low local ion and molecule concentration, resulting in a stable interface between the electrode and electrolyte. The full cells with D₂ O-based electrolyte demonst2023-01-01T00:00:00Z2023 Apr2025-04-20T02:50:06.167Z2025-02-19T03:09:24.803ZS-EPMC109465633680957610.1002/anie.202300608