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In this work, we compare the performance of Li–O 2 batteries in pure/dry O 2 , pure O 2 with a relative humidity (RH) of 15% and ambient air with an RH of 50%, and analyze the ambient humidity effect on the reactions in the carbon-based catalytic electrode. Electrochemical investigation indicates that discharge capacities of Li–O 2 batteries increased with growth of...
Three‐dimensional ordered mesoporous/macroporous carbon sphere arrays (MMCSAs) are synthesized and then used as a catalyst for Li−O2 batteries. The hierarchical porous structure of the MMCSAs not only facilitates electrolyte immersion and Li+ diffusion but also provides an effective space for O2 diffusion and O2/Li2O2 conversion, and thus efficiently improves the performance of Li–O2 batteries.
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