High-Power Alkaline Zn–MnO2 Batteries Using γ-MnO2 Nanowires/Nanotubes and Electrolytic Zinc Powder


  • This work was supported by the NSFC (20 325 102 and 90 406 001) and 973 Program (2005 CB6 236 071). Supporting Information is available online from Wiley InterScience or from the authors.


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High-power alkaline Zn–MnO2 batteries with superior discharge performance have been constructed using γ-MnO2 nanowires/nanotubes (see Figure) and electrolytic zinc powder as the cathode and anode active materials, respectively. The improvement in discharge performance over commercial batteries is believed to be derived from the lower inner resistance of the batteries and the high utilization efficiency of the active materials.