Conjugated carbonyl compounds as electrode materials for sodium-ion/potassium-ion batteries |
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| Authors: | LIU Mengyun GU Tiantian ZHOU Min WANG Kangli CHENG Shijie JIANG Kai |
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| Affiliation: | 1. School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China;
2. School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China |
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| Abstract: | Sodium (Potassium)-ion batteries are promising battery systems for large-scale energy storage applications owning to the low cost and resource abundance. However, the relatively larger radius of sodium (potassium) ions hinders the development of Na (K)-host materials. The organic electrode materials, especially carbonyl compounds, have been considered as one of the most promising electrode materials for SIBs and KIBs due to the structural diversity, high theoretical specific capacity and environmental friendliness. Moreover, the flexible frameworks demonstrate less restriction on the cation sizes. Therefore, constructing sodium (potassium) ion batteries based on organic carbonyl compounds are highly desirable for the next generation of "green batteries". This review offers an introduction on the classification, Na/K-storage performances and mechanisms of the organic carbonyl compounds, emphasizing on the existing problems and resolution strategies. Finally, the basic scientific problems, technical challenges and competitiveness of carbonyl compounds as electrode materials for Sodium (Potassium)-ion batteries are summarized, and the application of carbonyl-based organic electrode materials for large-scale energy storage applications are also forecasted. |
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| Keywords: | sodium-ion batteries potassium-ion batteries organic electrode materials conjugated carbonyl compounds |
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