Triple-function of hydroxyacetone in suppressing water activity toward long-lived aqueous zinc-ion batteries

Key Points

• To investigate the effects of hydroxyacetone on the performance and longevity of zinc-ion batteries.
• Examined the solvation effects of Zn 2+ ions with hydroxyacetone.
• Analyzed changes in hydrogen bond network due to hydroxyacetone.
• Evaluated the formation of a water-poor interfacial layer in the battery system.
• Achieved over 3200 hours of cycling for zinc electrodes.
• Reported a charge efficiency of 99.27% in zinc-copper cells.
• Demonstrated potential for enhancing the lifespan of zinc-ion batteries.