Published: Jan. 1, 2023
Aqueous Zn-ion batteries (AZIBs) have garnered huge attention for grid-scale energy storage systems owing to their eco-friendliness, affordability, safety, and high specific capacity. Nonetheless, recyclability is hindered by the corrosion, zinc dendrite hydrogen evolution reaction. The development of protecting layer Zn anode great meaningful challenge. In this work, a nanowire-structured xonotlite (calcium silicate hydrate, Ca6Si6O17(OH)2, denoted as CaSi) successfully synthesized facile green route it used construct (named Zn@CaSi), where CaSi functions an artificial interfacial with zincophilic behavior guiding inerratic deposition interaction between electrolyte anode. Owing numerous pores nanowires, Zn@CaSi offers vast stable avenues facilitating enhancement Zn2+ kinetics. Regarding crystal structure, featuring 4.38 Å nanopore channels can facilitate desolvation hydrated ion via confinement effect, therefore effectively inhibiting reaction accumulation by-products. Compared bare Zn, significant improvement in overall performance achieved. symmetric cell runs smoothly 1580 hours at current density 1 mA cm−2, which approximately 13 times than that Zn//Zn cell. full enhanced electrochemical performances also demonstrates boost charge transfer plating/stripping Reconstruction electrolyte/anode interface using nanowire-formulated porous structure expected provide new ideas engineering interfaces achieve high-performance AZIBs.
Language: Английский