▎ 摘　　要

The kinetics mismatch between battery type anode and capacitor type cathode for most lithium-ion capacitors (LICs) greatly hampers their overall electrochemical performance. Herein, we construct a high-performance LIC using activated carbon as cathode and pseudocapacitive-assisted Co3O4 porous nanorods (Co3O4 PNRs) /N-doped reduced graphene oxide hybrid (RGO-Co3O4 PNR) as anode to address this issue. In this design, (1) the in situ nitrogen doping enhances the strong coupling between Co3O4 and graphene, leading to good structural stability; (2) Co3O4 PNRs provide sufficient ion transport pathways in the axial direction and shorten diffusion distance in the radial direction, resulting to improved ion dynamics; (3) the integrated 3D hybrid structure with improved conductivity and enhanced surface area endows the RGO-Co3O4 PNR with feasible channels for ion/electron transport and extra adsorption sites for energy storage, which can improve kinetics and capacity synchronously. Consequently, the hybrid electrode shows remarkable specific capacity (1118 mAh g(-1) at 0.2 A g(-1)), impressive rate capability (427 mAh g(-1) at 5 A g(-1)) and long lifespan with a capacity retention of 75% even after 200 continuous cycles at 0.5 A g(-1). Significantly, the improved pseudocapacitive contribution should be responsible for fast kinetics and long durability of the electrode. Due to the improved cathode and anode compatibility, the assembled LIC delivers high energy density of 144 Wh kg(-1) and 72 Wh kg(-1) at 300 W kg(-1) and 13 kW kg(-1) along with impressive life expectancy.