AI Article Synopsis
- The side reactions between the lithium anode and cathode with the electrolyte are significantly reduced at low temperatures, which helps improve the longevity of lithium-oxygen (Li-O) cells.
- At 0 °C, these cells can operate stably for 279 and 1025 cycles at a current density of 400 mA/g, with maximum capacities of 1000 and 500 mAh/g, respectively.
- Even at a much colder temperature of -20 °C, the cells can complete 83 stable cycles at 200 mA/g, maintaining a capacity of 500 mAh/g.
Article Abstract
In this work, we found that the side reactions of both the Li anode and cathode with the electrolyte can be obviously alleviated at low temperature. This favorable merit enables long cycle life of the Li-O cells at low temperature. At 0 °C, the cells can sustain stable cycling of 279 and 1025 cycles at 400 mA g with limited capacities of 1000 and 500 mA h g, respectively. Even at -20 °C, the cell can be stably cycled for 83 cycles at 200 mA g with a limited capacity of 500 mA h g.
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| http://dx.doi.org/10.1021/acsami.8b06640 | DOI Listing |
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