NASICON-type air-stable and all-climate cathode for sodium-ion batteries with low cost and high-power density
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Date
2019-04-01
Journal Title
Journal ISSN
Volume Title
Publisher
Springer Nature
Abstract
The development of low-cost and long-lasting all-climate cathode materials for the sodium ion battery has been one of the key issues for the success of large-scale energy storage. One option is the utilization of earth-abundant elements such as iron. Here, we synthesize a NASICON-type tuneable Na4Fe3(PO4)2(P2O7)/C nanocomposite which shows both excellent rate performance and outstanding cycling stability over more than 4400 cycles. Its air stability and all-climate properties are investigated, and its potential as the sodium host in full cells has been studied. A remarkably low volume change of 4.0% is observed. Its high sodium diffusion coefficient has been measured and analysed via first-principles calculations, and its three-dimensional sodium ion diffusion pathways are identified. Our results indicate that this low-cost and environmentally friendly Na4Fe3(PO4)2(P2O7)/C nanocomposite could be a competitive candidate material for sodium ion batteries. - © Open Access This article is licensed under a Creative Commons Attribution 4.0
Description
Keywords
Sodium ions, Cathodes, Fuel cells, Diffusion, Energy storage, Energy storage systems, Electrodes
Citation
Chen, M., Hua, W., Xiao, J., Cortie, D., Chen, W., Wang, E., Hu, Z., Gu, Q., Wang, X., Indris, S., Chou, S.-L., & Dou, S.-X. (2019). NASICON-type air-stable and all-climate cathode for sodium-ion batteries with low cost and high-power density. Nature Communications, 10(1), 1480. doi:10.1038/s41467-019-09170-5