▎ 摘　　要

Carbon fluoride/graphene oxide/polyacrylonitrile (CFx/GO/PAN, denoted as CGP) electrodes are prepared for lithium primary and sodium secondary batteries. The introduction of GO sheets and PAN built a sandwich-like structure. The rate performances of Li/CGP batteries verify that PAN and GO materials have negligible effects on the electrochemical properties of lithium primary batteries. In Na/CGP batteries, GO sheets have more defects to facilitate sodium ions transfer and offer more active sites for NaF deposition and decomposition. Meanwhile, the GO network coating of the CFx particles confines active fluorine during the cycles. Cubic and nanoscale discharge products of NaF form both on the surface of CFx particles and the GO sheets, respectively. Na/CGF batteries achieve an initial discharge capacity of 507.0mAhg(-1) and a voltage polarization of 0.75V, except in the first cycle. These results demonstrate that CGP electrodes with a sandwich-like structure have favorable electrochemical properties, resulting in the synergetic effect of GO sheets and PAN.