
Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown
Published: May 29, 2025
Abstract High‐concentration electrolytes show promise in zinc metal batteries, but low salt solubility limits options. This study introduces a highly soluble, reduction‐active lithium into conventional electrolytes. By modifying the solvation structure and electric double layer, reversibility of anode is enhanced. At cathode, ion absorption on surface leads to restructured thereby reducing dissolution active materials. With this electrolyte, Zn//Cu half‐cells exhibit over 1300 cycle lifespan with an average columbic efficiency 99.60%. Furthermore, full‐cell high mass loading (5 mg cm −2 ) NaV 3 O 8 ·1.5 H 2 (NVO) cathode negative‐to‐positive (N/P) ratio retains 95% capacity after 250 cycles. Even at −45 °C, retention battery almost 100% 500 work highlights potential high‐concentration salts improve stability aqueous batteries by modulating structures interfacial chemistry.
Language: Английский