Research progress on the modification of manganese dioxide cathode in zinc-air batteries
The MnO2 cathode material of zinc-air batteries has attracted great attention due to its high working voltage and low manufacturing cost.However,it suffers from poor conductivity and structural collapse during charge and discharge processes,leading to low specific capacity and poor cycling stability.In this article,we reviewed the strategies to improve the conductivity and cycling stability of MnO2 cathode materials,including structural regulation,doping modification,material composites,and other control methods.We also analyzed the influence of different crystal structures,doping,and material composites on the conductivity and cycling stability of MnO2 cathode materials,providing insights for enhancing their performance.Finally,we provided prospects for the future development of MnO2 cathode materials in high-performance zinc-air batteries,suggesting the synergistic combination of various improvement strategies.
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