Extracting the Full Potential of Single-Walled Carbon Nanotubes as Durable Supercapacitor Electrodes Operable at 4 V with High Power and Energy Density

Authors

  • Ali Izadi-Najafabadi,

    1. Nanotube Research Center, National Institute of Advanced Industrial Science, and Technology (AIST) Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565 (Japan)
    2. Meijo University, Nagoya 468-8502 (Japan)
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  • Satoshi Yasuda,

    1. Nanotube Research Center, National Institute of Advanced Industrial Science, and Technology (AIST) Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565 (Japan)
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  • Kazufumi Kobashi,

    1. Nanotube Research Center, National Institute of Advanced Industrial Science, and Technology (AIST) Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565 (Japan)
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  • Takeo Yamada,

    1. Nanotube Research Center, National Institute of Advanced Industrial Science, and Technology (AIST) Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565 (Japan)
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  • Don N. Futaba,

    1. Nanotube Research Center, National Institute of Advanced Industrial Science, and Technology (AIST) Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565 (Japan)
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  • Hiroaki Hatori,

    1. Project Headquarters, National Institute of Advanced Industrial, Science and Technology (AIST), Tsukuba Central 2, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565 (Japan)
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  • Motoo Yumura,

    1. Nanotube Research Center, National Institute of Advanced Industrial Science, and Technology (AIST) Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565 (Japan)
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  • Sumio Iijima,

    1. Nanotube Research Center, National Institute of Advanced Industrial Science, and Technology (AIST) Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565 (Japan)
    2. Meijo University, Nagoya 468-8502 (Japan)
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  • Kenji Hata

    Corresponding author
    1. Nanotube Research Center, National Institute of Advanced Industrial Science, and Technology (AIST) Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565 (Japan)
    2. Japan Science and Technology Agency (JST), Kawaguchi 332-0012 (Japan)
    • Nanotube Research Center, National Institute of Advanced Industrial Science, and Technology (AIST) Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565 (Japan).
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Abstract

original image

Supercapacitor electrodes fabricated from single-walled carbon nanotubes (SWNTs) are shown to be capable of durable operation at 4 V, exceeding the operating voltage limit of activated carbon electrodes (AC, 3 V), while delivering significantly higher energy and power (see figure). Dual exploitation of SWNTs as combined electrodes and current collectors is also explored.

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