▎ 摘　　要

Nitrogen-doped defective graphene aerogel (N-DGA) was prepared by a hydrothermal method incorporated with mild pore-forming and post doping processes. The microstructure and electrochemical behavior were evaluated. The N-DGA with relatively high-level nitrogen content maintains a three-dimensional (3D) interconnected structure, in which wrinkled graphene presents obvious in-plane pores. The specific capacities of 1387 and 143 mAh g(-1) could be achieved at current densities of 50 and 1000 mA g(-1), respectively. The greatly improved electrochemical performance as the anode in contrast to that of the graphene aerogel (GA) without any structural modifications can be ascribed to the 3D micro-structure, heteroatom doping and defect sites. These features endow the entire electrode with highly accessible surface area, improved conductivity, efficient ion transport and electrochemically active surface, which are beneficial to reversible lithium ion storage, rate capability as well as stability. The LICs full cell by using the N-DGA anode and defective graphene aerogel/activated carbon (DGA/AC) cathode was assembled and the corresponding performance was also evaluated. The maximum energy and power densities of 39 Wh kg(-1) and 1.2 kW kg(-1) could be delivered. The descent performance shows a promising perspective of all graphene based LICs with high energy/power densities.