For the first time, spent Zn–MnO₂ primary batteries are recycled to directly build rechargeable Zn–MnO₂ batteries with a mixed solution of sulfuric acid and hydrogen peroxide as the leachate, which aimed to the efficient recovery of spent Zn–MnO₂ primary batteries and the realization of high-powered rechargeable Zn–MnO₂ batteries. After simple purification, the leached liquid is directly used as the working solution to prepare an electrolytic rechargeable Zn–MnO₂ battery. The experimental results show that the performance of the recycling solution of the neutral Zn–MnO₂ primary battery was better than that of the alkaline Zn–MnO₂ primary battery, and both performed better than the solution prepared with chemically pure reagents. After optimizing the pH of the working solution and charging current, the obtained rechargeable Zn–MnO₂ battery can provide an energy efficiency of 72.33 % ± 0.55, a coulombic efficiency of 90.17 % ± 0.71, and excellent cycle stability. These experimental results show that spent Zn–MnO₂ primary batteries can be successfully recycled to prepare rechargeable Zn–MnO₂ batteries, demonstrating very good application potential.

首次将废Zn-MnO ₂原电池回收利用，以硫酸和双氧水的混合溶液为浸出液直接构建可充电Zn-MnO ₂电池，旨在有效回收废Zn-MnO ₂原电池。电池和高功率可充电 Zn-MnO ₂电池的实现。浸出液经简单提纯后，直接作为工作液制备Zn-MnO ₂电解充电电池。实验结果表明，中性Zn-MnO ₂一次电池回收液的性能优于碱性Zn-MnO ₂一次电池。原电池，两者都比用化学纯试剂制备的溶液表现更好。优化工作溶液的pH值和充电电流后，得到的可充电Zn-MnO ₂电池可提供72.33 % ± 0.55的能量效率、90.17 % ± 0.71的库仑效率和优异的循环稳定性。这些实验结果表明，废Zn-MnO ₂一次电池可以成功回收用于制备可充电Zn-MnO ₂电池，显示出非常好的应用潜力。