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Scalable fabrication of high-power graphene micro-supercapacitors for flexible and on-chip energy storage

Author

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  • Maher F. El-Kady

    (University of California, Los Angeles (UCLA)
    Faculty of Science, Cairo University)

  • Richard B. Kaner

    (University of California, Los Angeles (UCLA)
    UCLA)

Abstract

The rapid development of miniaturized electronic devices has increased the demand for compact on-chip energy storage. Microscale supercapacitors have great potential to complement or replace batteries and electrolytic capacitors in a variety of applications. However, conventional micro-fabrication techniques have proven to be cumbersome in building cost-effective micro-devices, thus limiting their widespread application. Here we demonstrate a scalable fabrication of graphene micro-supercapacitors over large areas by direct laser writing on graphite oxide films using a standard LightScribe DVD burner. More than 100 micro-supercapacitors can be produced on a single disc in 30 min or less. The devices are built on flexible substrates for flexible electronics and on-chip uses that can be integrated with MEMS or CMOS in a single chip. Remarkably, miniaturizing the devices to the microscale results in enhanced charge-storage capacity and rate capability. These micro-supercapacitors demonstrate a power density of ~200 W cm−3, which is among the highest values achieved for any supercapacitor.

Suggested Citation

  • Maher F. El-Kady & Richard B. Kaner, 2013. "Scalable fabrication of high-power graphene micro-supercapacitors for flexible and on-chip energy storage," Nature Communications, Nature, vol. 4(1), pages 1-9, June.
    • Handle: RePEc:nat:natcom:v:4:y:2013:i:1:d:10.1038_ncomms2446
    DOI: 10.1038/ncomms2446
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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. Amiri, Ahmad & Swart, Edward Ned & Polycarpou, Andreas A., 2021. "Recent advances in electrochemically-efficient materials for zinc-ion hybrid supercapacitors," Renewable and Sustainable Energy Reviews, Elsevier, vol. 148(C).
    3. Kumar, Rajesh & Joanni, Ednan & Savu, Raluca & Pereira, Matheus S. & Singh, Rajesh K. & Constantino, Carlos J.L. & Kubota, Lauro T. & Matsuda, Atsunori & Moshkalev, Stanislav A., 2019. "Fabrication and electrochemical evaluation of micro-supercapacitors prepared by direct laser writing on free-standing graphite oxide paper," Energy, Elsevier, vol. 179(C), pages 676-684.
    4. Nawapong Unsuree & Sorasak Phanphak & Pongthep Prajongtat & Aritsa Bunpheng & Kulpavee Jitapunkul & Pornpis Kongputhon & Pannaree Srinoi & Pawin Iamprasertkun & Wisit Hirunpinyopas, 2021. "A Review: Ion Transport of Two-Dimensional Materials in Novel Technologies from Macro to Nanoscopic Perspectives," Energies, MDPI, vol. 14(18), pages 1-38, September.
    5. Mohamed Nabih Baeshen & Mohiuddin Khan Warsi & Arwa A Makki & Dina Hajjar & Mohammad Azhar Kamal & Ammar AL-Farga & Nabih A Baeshen, 2019. "Prospective Applications of the Medicinal Desert Plant Rhazya stricta in Green Chemistry Genomics and Agriculture Biotechnology: Mini Review," Current Trends On Biostatistics & Biometrics, Lupine Publishers, LLC, vol. 1(5), pages 140-145, October.
    6. He, Wei & Wang, Jihong, 2018. "Optimal selection of air expansion machine in Compressed Air Energy Storage: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 87(C), pages 77-95.

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