| Cyclic-anion salt for high-voltage stable potassium-metal batteriesOA |
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| 作者姓名： | Yanyao Hu Ling Fan Apparao M.Rao Weijian Yu Caixiang Zhuoma Yanhong Feng Zhihui Qin Jiang Zhou Bingan Lu |
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| 作者单位： | 1. School of Physics and Electronics, Hunan University;2. Department of Physics and Astronomy, Clemson Nanomaterials Institute, Clemson University;3. School of Materials Science and Engineering, Central South University |
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| 基金项目： | National Natural Science Foundation of China (22005093)；;the Natural Science Foundation of Hunan Province (2022JJ20011)；;the Fundamental Research Funds for the Central Universities (531119200156)；;National Natural Science Foundation of China (U20A20247and 51922038)； |
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| 摘 要： | Electrolyte anions are critical for achieving high-voltage stable potassium-metal batteries(PMBs).However,the common anions cannot simultaneously prevent the formation of ’dead K’ and the corrosion of Al current collector,resulting in poor cycling stability.Here,we demonstrate cyclic anion of hexafluoropropane-1,3-disulfonimide-based electrolytes that can mitigate the ’dead K’ and remarkably enhance the high-voltage stability of PMBs.Particularly,even using low salt concentration(0.8 M) and addi...
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