High-Capacity Sodium Peroxide Based Na–O2 Batteries with Low Charge Overpotential via a Nanostructured Catalytic Cathode AITranslate

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DOI：https://doi.org/10.1021/acsenergylett.7b01143

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The superoxide based Na–O2 battery has circumvented the issue of large charge overpotential in Li–O2 batteries; however, the one-electron process leads to limited capacity. Herein, a sodium peroxide based low-overpotential (∼0.5 V) Na–O2 battery with a capacity as high as 7.5 mAh/cm2 is developed with Pd nanoparticles as catalysts on the cathode.