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Nonaqueous Lithium-Ion Capacitors with High Energy Densities using Trigol-Reduced Graphene Oxide Nanosheets as Cathode-Active Material

Authors

  • Dr. Vanchiappan Aravindan,

    Corresponding author
    1. Energy Research Institute @ NTU (ERI@N), Nanyang Technological University, Research Techno Plaza, 50 Nanyang Drive, 637553 (Singapore)
    • Vanchiappan Aravindan, Energy Research Institute @ NTU (ERI@N), Nanyang Technological University, Research Techno Plaza, 50 Nanyang Drive, 637553 (Singapore)

      Satishchandra Ogale, Centre of Excellence in Solar Energy, Dr. Homi Bhabha Road, Pashan, Pune 411008, Network Institute of Solar Energy (CSIR-NISE), New Delhi (India)

      Srinivasan Madhavi, Energy Research Institute @ NTU (ERI@N), Nanyang Technological University, Research Techno Plaza, 50 Nanyang Drive, 637553 (Singapore)

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    • These authors contributed equally to this work.

  • Dattakumar Mhamane,

    1. Centre of Excellence in Solar Energy, Dr. Homi Bhabha Road, Pashan, Pune 411008, Network Institute of Solar Energy (CSIR-NISE), New Delhi (India)
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    • These authors contributed equally to this work.

  • Dr. Wong Chui Ling,

    1. Energy Research Institute @ NTU (ERI@N), Nanyang Technological University, Research Techno Plaza, 50 Nanyang Drive, 637553 (Singapore)
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  • Dr. Satishchandra Ogale,

    Corresponding author
    1. Centre of Excellence in Solar Energy, Dr. Homi Bhabha Road, Pashan, Pune 411008, Network Institute of Solar Energy (CSIR-NISE), New Delhi (India)
    • Vanchiappan Aravindan, Energy Research Institute @ NTU (ERI@N), Nanyang Technological University, Research Techno Plaza, 50 Nanyang Drive, 637553 (Singapore)

      Satishchandra Ogale, Centre of Excellence in Solar Energy, Dr. Homi Bhabha Road, Pashan, Pune 411008, Network Institute of Solar Energy (CSIR-NISE), New Delhi (India)

      Srinivasan Madhavi, Energy Research Institute @ NTU (ERI@N), Nanyang Technological University, Research Techno Plaza, 50 Nanyang Drive, 637553 (Singapore)

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  • Prof. Srinivasan Madhavi

    Corresponding author
    1. Energy Research Institute @ NTU (ERI@N), Nanyang Technological University, Research Techno Plaza, 50 Nanyang Drive, 637553 (Singapore)
    2. School of Materials Science and Engineering, Nanyang Technological University, 639798 (Singapore)
    • Vanchiappan Aravindan, Energy Research Institute @ NTU (ERI@N), Nanyang Technological University, Research Techno Plaza, 50 Nanyang Drive, 637553 (Singapore)

      Satishchandra Ogale, Centre of Excellence in Solar Energy, Dr. Homi Bhabha Road, Pashan, Pune 411008, Network Institute of Solar Energy (CSIR-NISE), New Delhi (India)

      Srinivasan Madhavi, Energy Research Institute @ NTU (ERI@N), Nanyang Technological University, Research Techno Plaza, 50 Nanyang Drive, 637553 (Singapore)

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Abstract

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One HEC of a material: The use of trigol-reduced graphene oxide nanosheets as cathode material in hybrid lithium-ion electrochemical capacitors (Li-HECs) results in an energy density of 45 Wh kg−1; much enhanced when compared to similar devices. The mass loading of the active materials is optimized, and the devices show good cycling performance. Li-HECs employing these materials outperform other supercapacitors, making them attractive for use in power sources.

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