Triple‐Function Electrolyte Regulation toward Advanced Aqueous Zn‐Ion Batteries

Abstract The poor Zn reversibility has been criticized for limiting applications of aqueous Zn‐ion batteries (ZIBs); however, its behavior in aqueous media is not fully uncovered yet. Here, this knowledge gap is addressed, indicating that Zn electrodes face a O 2 ‐involving corrosion, besides H 2 evolution and dendrite growth. Differing from aqueous Li/Na batteries, removing O 2 cannot enhance ZIB performance because of the aggravated competing H 2 evolution. To address Zn issues, a one‐off electrolyte strategy is reported by introducing the triple‐function C 3 H 7 Na 2 O 6 P, which can take effects during the shelf time of battery. It regulates H + concentration and reduces free‐water activity, inhibiting H 2…

• NC
  National Computational Infrastructure
• AG
  Australian Government
• UO
  University of Adelaide
• AR
  Australian Research Council

  Awards: DP220102596, FL170100154, DP220102596, FL170100154
• NC
  National Cancer Institute