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Aqueous rechargeable batteries are a possible strategy for large-scale energy storage systems.However,limited choices of anode materials restrict their further application.Here we report phenazine (PNZ) as stable anode materials in different alkali-ion (Li+,Na+,K+) electrolyte.A novel full cell is assembled by phenazine anode,Na0.44MnO2 cathode and 10 M NaOH electrolyte to further explore the electrochemical performance of phenazine anode.This battery is able to achieve high capacity (176.7 mAh·g-1 at 4 C (1.2 A·g-1)),ultralong cycling life (capacity retention of 80％ after 13,000 cycles at 4 C),and excellent rate capacity (92 mAh·g-1 at 100 C (30 A·g-1)).The reaction mechanism of PNZ during charge-discharge process is demonstrated by in situ Raman spectroscopy,in situ Fourier transform infrared (FTIR) spectroscopy,X-ray photoelectron spectroscopy (XPS) and density functional theory (DFT) calculations.Furthermore,the system is able to successfully operate at wide temperature range from-20 to 70 ℃ and achieves remarkable electrochemical performance.