界面水解离调控：水系多价金属离子电池新视角
Interfacial Water Dissociation Regulation: A New Perspective on Aqueous Multivalent Metal-Ion Batteries
(a) contour plot of water dissociation activity as a function of *OH adsorption energy, comparing different metal ions and cathode materials (ΔG*OH(E) and ΔG*OH(C) are the Gibbs energy changes on the electrode and solvated cations, respectively. The color bar represents the overpotential (η, in volts) for water dissociation in AMBs using different cathode materials. The specific chemical compositions of the 20 cathode materials on the horizontal axis are shown in the box below the plot)
(b) volcano plot of the capacity of AMBs under galvanostatic charge-discharge (at a current density of 2000 mA/g based on three-electrode cells) versus the ionic electronegativity of metal ions (The dashed lines represent the volcano trends)
(c) comparison of rate performance between water dissociation rendered *OH storage and conventional Zn2+ intercalation (VN@rGO—three-dimensional porous reduced graphene oxide (rGO) aerogel confined vanadium nitride (VN) nanocrystals. MOF—metal-organic-framework)
