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Synergistic interaction between redox-active electrolyte and binder-free functionalized carbon for ultrahigh supercapacitor performance

Author

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  • Li-Qiang Mai

    (State Key Laboratory of Advanced Materials Synthesis and Processing, WUT-Harvard Joint Nano Key Laboratory, Wuhan University of Technology)

  • Aamir Minhas-Khan

    (State Key Laboratory of Advanced Materials Synthesis and Processing, WUT-Harvard Joint Nano Key Laboratory, Wuhan University of Technology)

  • Xiaocong Tian

    (State Key Laboratory of Advanced Materials Synthesis and Processing, WUT-Harvard Joint Nano Key Laboratory, Wuhan University of Technology)

  • Kalele Mulonda Hercule

    (State Key Laboratory of Advanced Materials Synthesis and Processing, WUT-Harvard Joint Nano Key Laboratory, Wuhan University of Technology)

  • Yun-Long Zhao

    (State Key Laboratory of Advanced Materials Synthesis and Processing, WUT-Harvard Joint Nano Key Laboratory, Wuhan University of Technology)

  • Xu Lin

    (State Key Laboratory of Advanced Materials Synthesis and Processing, WUT-Harvard Joint Nano Key Laboratory, Wuhan University of Technology
    Harvard University)

  • Xu Xu

    (State Key Laboratory of Advanced Materials Synthesis and Processing, WUT-Harvard Joint Nano Key Laboratory, Wuhan University of Technology)

Abstract

Development of supercapacitors with high-energy density and high-power density is a tremendous challenge. Although the use of conductive carbon materials is promising, other methods are needed to reach high cyclability, which cannot be achieved by fully utilizing the surface-oxygen redox reactions of carbon. Here we introduce an effective strategy that utilizes Cu2+ reduction with carbon-oxygen surface groups of the binder-free electrode in a new redox-active electrolyte. We report a 10-fold increase in the voltammetric capacitance (4,700 F g−1) compared with conventional electrolyte. We measured galvanostatic capacitances of 1,335 F g−1 with a retention of 99.4% after 5,000 cycles at 60 A g−1 in a three-electrode cell and 1,010 F g−1 in a two-electrode cell. This improvement is attributed to the synergistic effects between surface-oxygen molecules and electrolyte ions as well as the low charge transfer resistance (0.04 Ω) of the binder-free porous electrode. Our strategy provides a versatile method for designing new energy storage devices and is promising for the development of high-performance supercapacitors for large-scale applications.

Suggested Citation

  • Li-Qiang Mai & Aamir Minhas-Khan & Xiaocong Tian & Kalele Mulonda Hercule & Yun-Long Zhao & Xu Lin & Xu Xu, 2013. "Synergistic interaction between redox-active electrolyte and binder-free functionalized carbon for ultrahigh supercapacitor performance," Nature Communications, Nature, vol. 4(1), pages 1-7, December.
  • Handle: RePEc:nat:natcom:v:4:y:2013:i:1:d:10.1038_ncomms3923
    DOI: 10.1038/ncomms3923
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    Cited by:

    1. Lingappan, Niranjanmurthi & Lee, Wonoh & Passerini, Stefano & Pecht, Michael, 2023. "A comprehensive review of separator membranes in lithium-ion batteries," Renewable and Sustainable Energy Reviews, Elsevier, vol. 187(C).
    2. Nitesh Kumar & Lingaraj Pradhan & Bikash Kumar Jena, 2022. "Recent progress on novel current collector electrodes for energy storage devices: Supercapacitors," Wiley Interdisciplinary Reviews: Energy and Environment, Wiley Blackwell, vol. 11(1), January.
    3. Changshi, Liu, 2021. "Reliable and precise evaluation energy-transfer and efficiency of super-capacitors," Renewable and Sustainable Energy Reviews, Elsevier, vol. 151(C).
    4. Kavyashree, & Parveen, Shama & Sharma, Suneel Kumar & Pandey, S.N., 2020. "Solid-state symmetric supercapacitor based on Y doped Sr(OH)2 using SILAR method," Energy, Elsevier, vol. 197(C).
    5. Tao Wang & Runtong Pan & Murillo L. Martins & Jinlei Cui & Zhennan Huang & Bishnu P. Thapaliya & Chi-Linh Do-Thanh & Musen Zhou & Juntian Fan & Zhenzhen Yang & Miaofang Chi & Takeshi Kobayashi & Jianz, 2023. "Machine-learning-assisted material discovery of oxygen-rich highly porous carbon active materials for aqueous supercapacitors," Nature Communications, Nature, vol. 14(1), pages 1-13, December.
    6. Parveen, Shama & Kavyashree, & Sharma, Suneel Kumar & Pandey, S.N., 2021. "High performance solid state symmetric supercapacitor based on reindeer moss-like structured Al(OH)3/MnO2/FeOOH composite electrode for energy storage applications," Energy, Elsevier, vol. 224(C).

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