A Heavily Surface-Doped Polymer with the Bifunctional Catalytic Mechanism in Li-O2 Batteries

？ A controllable electrochemical method to introduce redox-active anions in CP matrixes ？ Doping levels and semiconductor properties of CPs can be effectively controlled ？ Surface-doped CPs have better redox properties and electrochemical stability ？ The PCz doped by functionalized dopants shows a good catalytic effec