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NASICON-type air-stable and all-climate cathode for sodium-ion batteries with low cost and high-power density

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      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 Na 4Fe 3(PO 4) 2(P 2O 7)/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 Na 4Fe 3(PO 4) 2(P 2O 7)/C nanocomposite could be a competitive candidate material for sodium ion batteries.

      Abstract

      Here Chou and co-authors demonstrate a NASICON-type low-cost Fe-based cathode material for sodium ion batteries. Na 4Fe 3(PO 4) 2(P 2O 7) allows for long-term cycling and high-power density and is featured by its air stability and all-climate property with 3D diffusion pathways for Na + ions.

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            Author and article information

            Affiliations
            [1 ]ISNI 0000 0004 0486 528X, GRID grid.1007.6, Australian Institute for Innovative Materials, , Institute for Superconducting and Electronic Materials, University of Wollongong, ; Innovation Campus, Squires Way, North Wollongong, NSW 2522 Australia
            [2 ]ISNI 0000 0001 0075 5874, GRID grid.7892.4, Institute for Applied Materials-Energy Storage Systems (IAM-ESS), Karlsruhe Institute of Technology (KIT), ; 76344 Eggenstein-Leopoldshafen, Germany
            [3 ]ISNI 0000 0000 9731 2422, GRID grid.411431.2, School of Science, Hunan University of Technology, ; Zhuzhou, 412007 P. R. China
            [4 ]ISNI 0000000119573309, GRID grid.9227.e, State Key Laboratory of the Superlattices and Microstructures Institute of Semiconductors, Chinese Academy of Sciences, ; Beijing, 100083 P. R. China
            [5 ]ISNI 0000 0001 2189 3846, GRID grid.207374.5, College of Chemistry and Molecular Engineering, , Zhengzhou University, ; Zhengzhou, 450001 P. R. China
            [6 ]ISNI 0000 0001 0807 1581, GRID grid.13291.38, College of Chemical Engineering, , Sichuan University, ; Chengdu, 610065 P. R. China
            [7 ]ISNI 0000 0004 0562 0567, GRID grid.248753.f, Australian Synchrotron, ; 800 Blackburn Road, Clayton, VIC 3168 Australia
            Contributors
            chenweih@zzu.edu.cn
            ORCID: http://orcid.org/0000-0003-1155-6082, shulei@uow.edu.au
            Journal
            Nat Commun
            Nat Commun
            Nature Communications
            Nature Publishing Group UK (London )
            2041-1723
            1 April 2019
            1 April 2019
            2019
            : 10
            30931938 6443767 9170 10.1038/s41467-019-09170-5
            © The Author(s) 2019

            Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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