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Preparation of Bipolar Plate for Fuel Cell Using CNT/Graphite Nano-Composite KCI 등재

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  • URLhttps://db.koreascholar.com/Article/Detail/259641
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Carbon Letters (Carbon letters)
한국탄소학회 (Korean Carbon Society)
초록

Bipolar plates require some specific properties such as electrical conductivity, mechanical strength, chemical stability, and low permeability for the fuel cell application. This study investigated the effects of carbon nanotube (CNT) contents and process conditions of hot press molding on the electrical and physical properties using CNT 3~7 wt% added graphite nano-composites in the curing temperatures range of 140~200℃ and pressure of 200~300 kg/cm2. Bulk density, hardness and flexural strength increased with increasing CNT contents, curing pressure and temperature. With the 7 wt% CNT added noncomposite, the electrical resistance improved by 30% and the flexural strength increased by 25% as compared to that without CNT at the temperature of 160℃ and pressure of 300 kg/cm2. These properties were close to the DOE reference criteria as bulk resistance of 13 mΩcm and tensile strength of 515 kg/cm2.

저자
  • Jong-Min Choi(Korea Institute of Energy Research)
  • Tae-Jin Kim(Korea Institute of Energy Research)
  • Min-Soo Hyun(Korea Institute of Energy Research)
  • Dong-Hyun Peck(Korea Institute of Energy Research)
  • Sang-Kyung Kim(Korea Institute of Energy Research)
  • Byung-Rok Lee(Korea Institute of Energy Research)
  • Jong-Soo Park(Seung Lim Carbon Metal Co.)
  • Doo-Hwan Jung(Korea Institute of Energy Research)