Metal-air batteries have high capacities and power densities, but performance is limited in the absence of oxygen. Hydrogen peroxide not only has oxygen storage capacity of ∼1,600 times that of air but is also in some ways more convenient for storage and transportation than high-pressure cylinders. H₂O₂ may be a viable alternative in non-oxygen conditions. Here, we report aqueous Zn-H₂O₂ battery that is designed by replacing O₂ gas with hydrogen peroxide using Co/N doped carbon nanosheet as a multifunctional catalyst for oxygen reduction reaction, oxygen evolution reaction, and H₂O₂ decomposition. The optimized Zn-H₂O₂ battery exhibits superior high-rate discharging performance among 20–120 mA cm⁻², 23% higher than that of Zn-air battery at the rate of 120 mA cm⁻². As an application, two-serial Zn-H₂O₂ batteries can light a red LED array and work well in water. Therefore, we think Zn-H₂O₂ battery has numerous applications in high-power devices.

金属空气电池具有高容量和功率密度，但是在没有氧气的情况下性能受到限制。过氧化氢不仅具有约1600倍于空气的氧气存储能力，而且在某些方面还比高压钢瓶更便于存储和运输。H ₂ O ₂在无氧条件下可能是可行的选择。在这里，我们报道了Zn-H ₂ O ₂水性电池，该电池是通过使用Co / N掺杂的碳纳米片作为氧还原反应，氧释放反应和H ₂ O ₂分解的多功能催化剂用过氧化氢代替O ₂气体而设计的。优化的Zn-H ₂ O ₂电池在20–120 mA cm ^-2之间表现出优异的高倍率放电性能，在120 mA cm ^{-2的情况下}比锌空气电池高23％。作为应用，两节Zn-H ₂ O ₂电池可点亮红色LED阵列，并在水中良好工作。因此，我们认为Zn-H ₂ O ₂电池在大功率设备中具有广泛的应用。