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Graphene-based in-plane micro-supercapacitors with high power and energy densities

Author

Listed:
  • Zhong–Shuai Wu

    (Max-Planck-Institut für Polymerforschung)

  • Khaled Parvez

    (Max-Planck-Institut für Polymerforschung)

  • Xinliang Feng

    (Max-Planck-Institut für Polymerforschung)

  • Klaus Müllen

    (Max-Planck-Institut für Polymerforschung)

Abstract

Micro-supercapacitors are important on-chip micro-power sources for miniaturized electronic devices. Although the performance of micro-supercapacitors has been significantly advanced by fabricating nanostructured materials, developing thin-film manufacture technologies and device architectures, their power or energy densities remain far from those of electrolytic capacitors or lithium thin-film batteries. Here we demonstrate graphene-based in-plane interdigital micro-supercapacitors on arbitrary substrates. The resulting micro-supercapacitors deliver an area capacitance of 80.7 μF cm−2 and a stack capacitance of 17.9 F cm−3. Further, they show a power density of 495 W cm−3 that is higher than electrolytic capacitors, and an energy density of 2.5 mWh cm−3 that is comparable to lithium thin-film batteries, in association with superior cycling stability. Such microdevices allow for operations at ultrahigh rate up to 1,000 V s−1, three orders of magnitude higher than that of conventional supercapacitors. Micro-supercapacitors with an in-plane geometry have great promise for numerous miniaturized or flexible electronic applications.

Suggested Citation

  • Zhong–Shuai Wu & Khaled Parvez & Xinliang Feng & Klaus Müllen, 2013. "Graphene-based in-plane micro-supercapacitors with high power and energy densities," Nature Communications, Nature, vol. 4(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:4:y:2013:i:1:d:10.1038_ncomms3487
    DOI: 10.1038/ncomms3487
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    Cited by:

    1. Zhang, Xingyan & Zhao, Wen & Wei, Lu & Jin, Yiyi & Hou, Jie & Wang, Xiaoxue & Guo, Xin, 2019. "In-plane flexible solid-state microsupercapacitors for on-chip electronics," Energy, Elsevier, vol. 170(C), pages 338-348.
    2. Li, Yong & Yang, Jie & Song, Jian, 2017. "Structure models and nano energy system design for proton exchange membrane fuel cells in electric energy vehicles," Renewable and Sustainable Energy Reviews, Elsevier, vol. 67(C), pages 160-172.
    3. Li, Yong & Song, Jian & Yang, Jie, 2015. "Graphene models and nano-scale characterization technologies for fuel cell vehicle electrodes," Renewable and Sustainable Energy Reviews, Elsevier, vol. 42(C), pages 66-77.
    4. Zhou, Man & Li, Kai & Hu, Jinguang & Tang, Liping & Li, Mingliu & Su, Lifang & Zhao, Hong & Ko, Frank & Cai, Zaisheng & Zhao, Yaping, 2022. "Sustainable production of oxygen-rich hierarchically porous carbon network from corn straw lignin and silk degumming wastewater for high-performance electrochemical energy storage," Renewable Energy, Elsevier, vol. 191(C), pages 141-150.
    5. Di Wei & Feiyao Yang & Zhuoheng Jiang & Zhonglin Wang, 2022. "Flexible iontronics based on 2D nanofluidic material," Nature Communications, Nature, vol. 13(1), pages 1-11, December.

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