▎ 摘　　要

Sodium (Na)-based electrochemical energy storage devices have drawn particular attention in the renewable and rechargeable energy storage system primarily because of their remarkable energy density and cost-competitive advantages. Herein, we have reported a novel ternary perovskite fluoride K0.97Ni0.31Zn0.28Mn0.41F2.84 with a well-distributed reduced graphene oxide substrate (denoted as KNZMF@rGO) as anode for Na-ion storage that possesses the fast kinetics validated via electrochemical and density functional theory (DFT) methods as well as superior lifespan, which delivers fascinating performances owing to the unexceptionable synergistic effect of Ni, Zn and Mn redox-active species with variable valence. Meanwhile, the surface conversion, alloying and inter-calation triple hybridization mechanisms of KNZMF@rGO anode have been explored by the electrochemical analysis and the diverse ex situ physicochemical characterizations. What is more, this work also offers new in-sights into the device design and proposes the previously unreported "sodium-based dual-ion supercabatteries " (S-DICBs) systems for establishing advanced electrochemical energy storage devices, which exhibit the more intriguing properties than traditional sodium ion capacitors (SICs) and sodium-based dual ion batteries (S-DIBs). In parallel, utilizing different presodiated current densities of anode to explore their impact on the various electrochemical properties of S-DICBs opens up a way for the research of presodiation techniques in the future.