Research progress on Na3V2(PO4)2F3-based cathode materials for sodium-ion batteries |
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| Institution: | 1. School of Materials Science and Engineering, Jiangsu Province Engineering Research Center of Intelligent Manufacturing Technology for the New Energy Vehicle Power Battery, Changzhou University, Changzhou 213164, China;2. School of Physics and Electronics, Hunan University, Changsha 410082, China;3. College of Chemistry and Materials Engineering, Hunan University of Arts and Science, Changde 415000, China;4. School of Chemistry, Tiangong University, Tianjin 300387, China;1. Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China;2. Key Laboratory of Pollutant Chemistry and Environmental Treatment, College of Chemistry and Environmental Science, Yili Normal University, Yining 835000, China;1. College of Chemical Engineering, Sichuan University of Science and Engineering, Zigong 643000, China;2. College of Chemistry, Sichuan University, Chengdu 610065, China;1. Key Laboratory of Aerosol Chemistry and Physics, State Key Laboratory of Loess and Quaternary Geology (SKLLQG), Institute of Earth Environment, Chinese Academy of Sciences, Xi''an 710061, China;2. Center of Excellence in Quaternary Science and Global Change, Chinese Academy of Sciences, Xi''an 710061, China;3. University of Chinese Academy of Sciences, Beijing 100049, China;4. Department of Environmental Science and Engineering, Xi''an Jiaotong University, Xi''an 710049, China |
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| Abstract: | Sodium-ion batteries (SIBs) have received significant attention in large-scale energy storage due to their low cost and abundant resources. To obtain high-performance SIBs, many intensive studies about electrode materials have been carried out, especially the cathode material. As various types of cathode material for SIBs, a 3D open framework structural Na3V2(PO4)2F3 (NVPF) with Na superionic conductor (NASICON) structure is a promising cathode material owing to its high operating potential and high energy density. However, its electrochemical properties are severely limited by the poor electronic conductivity due to the insulated PO4] tetrahedral unit. In this review, the challenges and strategies for NVPF are presented, and the synthetic strategy for NVPF is also analyzed in detail. Furthermore, recent developments of modification research to enhance their electrochemical performance are discussed, including designing the crystal structure, adjusting the electrode structure, and optimizing the electrolyte components. Finally, further research and application for future development of NVPF are prospected. |
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