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

Chen, Mingzhe; Hua, Weibo; Xiao, Jin; Cortie, David; Chen, Weihua; Wang, Enhui; Hu, Zhe; Gu, Qinfen; Wang, Xiaolin; Indris, Sylvio; Chou, Shu-Lei; Dou, Shi-Xue

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.

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Verlagsausgabe §
DOI: 10.5445/IR/1000093193
Veröffentlicht am 02.04.2019
DOI: 10.1038/s41467-019-09170-5
Zitationen: 105
Zitationen: 110
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Angewandte Materialien - Energiespeichersysteme (IAM-ESS)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 12.2019
Sprache Englisch
Identifikator ISSN: 2041-1723
KITopen-ID: 1000093193
HGF-Programm 37.01.02 (POF III, LK 01) Components and Cells
Erschienen in Nature Communications
Verlag Nature Research
Band 10
Heft 1
Seiten Article: 1480
Vorab online veröffentlicht am 01.04.2019
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