Acid‐Treatment‐Assisted Liquid Metal–Based Zinc Metal Anode for Stable Aqueous Zinc‐Ion Batteries

International Journal of Energy Research, Journal Year: 2025, Volume and Issue: 2025(1)

Published: Jan. 1, 2025

Aqueous Zn‐ion batteries (AZIBs) are considered to be a promising alternative Li‐ion (LIBs) owing the low cost, superior safety, and high theoretical capacity of Zn anode (820 mAh g −1 5855 cm −3 ). However, metal anodes encounter challenges, mainly including formation unfavorable byproducts growth dendrites. Furthermore, corrosion hydrogen evolution reaction (HER) issues related AZIBs. To overcome these issues, we engineered surface using acid treatment eutectic GaIn–liquid (EGaIn–LM) coating. Coating EGaIn–LM on results in an liquid–liquid interface between electrolyte electrode, increasing wettability accelerating charge transfer kinetics, with respect bare anode. coating improved resistance reduced HER overpotentials Ga In. Based advantages, EGaIn–LM@acidified (EGaIn–LM@AZn) showed stable symmetric cycling over 420 h exhibited stability against Finally, prepared V 2 O 5 cathode–based full cells different anodes. The //EGaIn–LM@AZn cell demonstrated excellent rate capability, long‐term charge/discharge (capacity retention 71.8% after 1500 cycles at current density A ), specific capacities under various densities kinetics protective nature EGaIn–LM. proposed simple method may offer strategy prepare

Language: Английский

Liquid metal composites: Recent advances and applications

International Journal of Minerals Metallurgy and Materials, Journal Year: 2025, Volume and Issue: 32(5), P. 1008 - 1024

Published: April 30, 2025

Language: Английский