Hybrid electrolyte Li-air rechargeable batteries based on nitrogen- and phosphorus-doped graphene nanosheets

Nitrogen doped GNSs (N-doped GNSs) and phosphorus doped GNSs (P-doped GNSs) are examined as cathode electrodes for hybrid electrolyte Li-air batteries under basic conditions. The N-doped GNSs not only show a high discharge voltage that is near that of 20 wt% Pt/carbon black, but also provide better rate performance in the discharge process than that of the P-doped GNSs.