Energy Storage Using Carbon Nanotubes

  • TAKAGI Hideyuki
    National Institute of Advanced Industrial Science and Technology (AIST)
  • HATORI Hiroaki
    National Institute of Advanced Industrial Science and Technology (AIST)

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Other Title
  • カーボンナノチューブによるエネルギー貯蔵―高性能キャパシタと水素貯蔵―
  • カーボン ナノチューブ ニ ヨル エネルギー チョゾウ コウセイノウ キャパシタ ト スイソ チョゾウ

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Abstract

  Electric double layer capacitors (EDLCs) have excellent properties in power density and durability compared with rechargeable batteries. The single-walled carbon nanotubes have high surface area theoretically up to 2600 m2/g inside and outside of the tubes. The material is considered to be ideal for EDLC electrodes and hence the development of advanced capacitors using carbon nanotubes is active recently. On the other hand, hydrogen storage into carbon nanotubes has been a topic in last decade after some reports which showed a very high storage capacity of hydrogen. The present performance and the prospect of carbon nanotubes as capacitor electrodes and materials for hydrogen storage are introduced in the report.<br>

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