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FeS 2 -Decorated Carbon NanoFiber as Solid Phase Conversion-Type Cathode for Li-S Batteries

Author

Listed:
  • Jordi Jacas Biendicho

    (Catalonia Institute for Energy Research (IREC), Jardins de les Dones de Negre 1, 08930 Sant Adrià de Besòs, Spain)

  • Pedro Mazaira

    (Catalonia Institute for Energy Research (IREC), Jardins de les Dones de Negre 1, 08930 Sant Adrià de Besòs, Spain)

  • Hemesh Avireddy

    (Catalonia Institute for Energy Research (IREC), Jardins de les Dones de Negre 1, 08930 Sant Adrià de Besòs, Spain)

  • Chaoqi Zhang

    (Catalonia Institute for Energy Research (IREC), Jardins de les Dones de Negre 1, 08930 Sant Adrià de Besòs, Spain)

  • Pengyi Tang

    (Catalonia Institute for Energy Research (IREC), Jardins de les Dones de Negre 1, 08930 Sant Adrià de Besòs, Spain
    Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Spain)

  • Alexander Missyul

    (Alba Synchrotron Light Source, 08290 Cerdanyola del Vallès, Spain)

  • Lluis Trilla

    (Catalonia Institute for Energy Research (IREC), Jardins de les Dones de Negre 1, 08930 Sant Adrià de Besòs, Spain)

  • Jordi Arbiol

    (Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Spain
    ICREA, Pg. Lluís Companys 23, 08010 Barcelona, Spain)

  • Joan Ramon Morante

    (Catalonia Institute for Energy Research (IREC), Jardins de les Dones de Negre 1, 08930 Sant Adrià de Besòs, Spain
    Faculty of Physics, University of Barcelona, 08028 Barcelona, Spain)

  • Andreu Cabot

    (Catalonia Institute for Energy Research (IREC), Jardins de les Dones de Negre 1, 08930 Sant Adrià de Besòs, Spain
    ICREA, Pg. Lluís Companys 23, 08010 Barcelona, Spain)

Abstract

A new cathode material, FeS 2 -decorated carbon nanofiber (CNF), is proposed for Li-S batteries. The structure and physicochemical properties of the material have been engineered to enhance the poor cycling stability typically displayed by sulfur composites. The composite material shows a complex architecture with a matrix of CNF hosting the sulfur and core-shell FeS 2 nanoparticles acting as a catalyst for a solid phase conversion-type reaction. This cathode delivers high discharge capacities of 864, 798, 689, 595 and 455 mAhg −1 at C/10, C/5, C/2, 1C and 2C, respectively, with a stable capacity retention of 87% at 2C after 300 cycles. FeS 2 -decorated CNF has been characterised using several techniques, including in-situ battery measurements at the ALBA synchrotron facility and high-throughput microscopy, giving valuable insights into its charge/discharge reaction mechanism. The excellent performance obtained is combined with the use of just low-cost and abundant elements such as iron, sulfur and carbon, which makes this battery highly promising for the next generation of electrochemical energy storage devices.

Suggested Citation

  • Jordi Jacas Biendicho & Pedro Mazaira & Hemesh Avireddy & Chaoqi Zhang & Pengyi Tang & Alexander Missyul & Lluis Trilla & Jordi Arbiol & Joan Ramon Morante & Andreu Cabot, 2023. "FeS 2 -Decorated Carbon NanoFiber as Solid Phase Conversion-Type Cathode for Li-S Batteries," Energies, MDPI, vol. 16(11), pages 1-12, June.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:11:p:4496-:d:1162698
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