▎ 摘　　要

An aprotic Li-O-2 battery incorporating a conductive graphene interlayer displays an ultralow overpotential of 0.67 V and a stable cyclability over 200 cycles at a high current density of 500 mA g(-1). The improved performance of the battery is attributed to the role of the graphene interlayer in boosting the formation and decomposition of discharge products.