Article (Scientific journals)
Unveiling the potential of Na2FePO4F@PEG composite as cathode material for sodium-ion batteries
El Kacemi, Zineb; Fkhar, Lahcen; El Maalam, Khadija et al.
2024In Journal of Molecular Structure, 1312, p. 138524
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Keywords :
Carbon-coating; Cathode; Fluorophosphate; Sodium-ion batteries; Carbon coating; Cathodes material; Cost-effective approach; Direct use; Electrochemical performance; Fluoro-phosphates; Orthorhombic structures; Sodium ion batteries; Storage systems; Upscaling; Analytical Chemistry; Spectroscopy; Organic Chemistry; Inorganic Chemistry
Abstract :
[en] The economic and environmental advantages of Na2FePO4F fluorophosphate have positioned it as a highly promising cathode material for sodium-ion batteries (SIBs). This recognition stems from its demonstrated potential to address key challenges in energy storage systems, making it a subject of extensive research and studies. In this paper, the preparation of Na2FePO4F powder through a simplified, upscaling, and cost-effective approach that involves the direct use of phosphoric acid is described, aiming to evaluate its electrochemical performance. The obtained orthorhombic structure (S.G. Pbcn) is mixed with varying percentages of polyethylene glycol as a carbon source (15% and 20%) to generate large specific surfaces, improve electronic conductivity, and achieve an optimized carbon content for these materials. The 15% and 20% PEG-coated Na2FePO4F are evaluated at a 2 - 4 V voltage range at C/15 in Na-half cells using two electrolyte formulations: 5% FEC 1 M NaClO4:PC and 1 M NaPF6:PC. The NaPF6/FEC electrolyte exhibits better electrochemical characteristics and high cycling stability, especially in the case of the 15% PEG-coated material. These findings are also supported by the data from differential plots and rate capabilities, highlighting the potential of the coated material for applications in high-performance energy storage applications.
Disciplines :
Chemistry
Author, co-author :
El Kacemi, Zineb ;  AMEEC Team, LERMA, College of Engineering & Architecture, International University of Rabat, Parc Technopolis, Morocco
Fkhar, Lahcen ;  Université de Liège - ULiège > Complex and Entangled Systems from Atoms to Materials (CESAM)
El Maalam, Khadija;  Durability and Engineering of Materials Center, Moroccan Foundation for Advanced Science, Innovation and Research (MAScIR), Mohammed VI Polytechnic University, Morocco
Aziam, Hasna;  High Throughput Multidisciplinary Research (HTMR), Mohammed VI Polytechnic University (UM6P), Ben Guerir, Morocco
Ben Youcef, Hicham;  High Throughput Multidisciplinary Research (HTMR), Mohammed VI Polytechnic University (UM6P), Ben Guerir, Morocco
Saadoune, Ismael;  Applied Chemistry and Engineering Research (ACER CoE), Mohammed VI Polytechnic University, Morocco
Ait Ali, Mustapha;  Coordination Chemistry Laboratory, Faculty of Sciences Semlalia (UCA-FSSM), Cadi Ayyad University, Marrakech, Morocco
Boschini, Frédéric ;  Université de Liège - ULiège > Département de chimie (sciences) > GREEnMat
Mahmoud, Abdelfattah  ;  Université de Liège - ULiège > Département de chimie (sciences) > GREEnMat
Mounkachi, Omar;  Laboratory of Condensed Matter and Interdisciplinary Sciences (LaMCScI), Faculty of Sciences, Mohammed V University in Rabat, Morocco ; College of Computing, Mohammed VI Polytechnic University, Morocco ; Institute of Applied Physics, Mohammed VI Polytechnic University, Ben Guerir, Morocco
Balli, Mohamed ;  AMEEC Team, LERMA, College of Engineering & Architecture, International University of Rabat, Parc Technopolis, Morocco ; Department of Mechanical Engineering, Faculté de Génie, Université de Sherbrooke, Québec, Canada
Language :
English
Title :
Unveiling the potential of Na2FePO4F@PEG composite as cathode material for sodium-ion batteries
Publication date :
15 September 2024
Journal title :
Journal of Molecular Structure
ISSN :
0022-2860
eISSN :
1872-8014
Publisher :
Elsevier B.V.
Volume :
1312
Pages :
138524
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
IRESEN - Institut of Research in Solar Energy and New Energies
Funding text :
The authors would like to thank the International University of Rabat (UIR) and the IRESEN institution for their financial support of the project \u201CMat\u00E9riaux \u00E0 base de phosphate pour batteries \u00E0 haute densit\u00E9 d'\u00E9nergie-PhNAMathex.\u201D This work was performed with the support of the International Research Project, IRP ATLAS (GeorgiaTech-Lorraine, UIR, UM5), and the support of OCP Foundation through the APRD program.
Available on ORBi :
since 19 July 2024

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