High‐Rate Oxygen Reduction in Mixed Nonaqueous Electrolyte Containing Acetonitrile |
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| Authors: | Dr Dong Zheng Xiao‐Qing Yang Prof Deyang Qu |
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| Institution: | 1. Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Blvd, Boston, MA 02125 (USA);2. Chemistry Department, Brookhaven National Laboratory, Upton, NY 11973 (USA) |
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| Abstract: | A mixed nonaqueous electrolyte that contains acetonitrile and propylene carbonate (PC) was found to be suitable for a Li? O2 battery with a metallic Li anode. Both the concentration and diffusion coefficient for the dissolved O2 are significantly higher in the mixed electrolyte than those in the pure PC electrolyte. A powder microelectrode was used to investigate the O2 solubility and diffusion coefficient. A 10 mA cm?2 discharge rate on a gas‐diffusion electrode is demonstrated by using the mixed electrolyte in a Li? O2 cell. |
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| Keywords: | electrolytes energy storage lithium oxygen reduction |
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