In conclusion, we have found that the stability of NHPI can indeed be improved in acidic electrolytes. This discovery highlighted the value of NHPI as a low-cost, non-toxic, high potential and green cathode material in aqueous rechargeable battery. In the CV test, the NHPI-PINO redox couple experienced a high potential of nearly 1.1 V in ZnSO 4 + 0.05MH 2 SO 4 (pH = 1.26) electrolyte. Furthermore, when the NHPI cathode was assembled with zinc anode in ZnSO 4 + 0.05MH 2 SO 4 (pH = 1.26) electrolyte, the battery undergoes a columbic efficiency of about 80%. But due to the NHPI dissolution in the electrolyte and the crack of nafion membrane happened in the coin battery, the performance of the coin battery is not satisfied. Thus, if we want to achieve the production of NHPI-Zinc coin battery, the problem about the nafion membrane must be solved.