Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Performance of multi-cell stack for direct methanol fuel cells

직접메탄올 연료전지용 다층스택의 성능특성

  • Lee, Chang-Hyeong (Korea Institute of Energy Research, Fuel Cell Research Team) ;
  • Jung, Doo-Hwan (Korea Institute of Energy Research, Fuel Cell Research Team) ;
  • Kim, Chang-Soo (Korea Institute of Energy Research, Fuel Cell Research Team) ;
  • Shin, Dong-Ryul (Korea Institute of Energy Research, Fuel Cell Research Team)
  • 이창형 (한국에너지기술연구소 연료전지팀) ;
  • 정두환 (한국에너지기술연구소 연료전지팀) ;
  • 김창수 (한국에너지기술연구소 연료전지팀) ;
  • 신동열 (한국에너지기술연구소 연료전지팀)
  • Published : 1999.07.19
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Abstract

Performance of 20-cell stack for direct methanol fuel cell (DMFC) was tested at constant temperature. Electrode evaluation used to the stack was tested by the performance of a single cell. A new composite electrode prepared from active carbon cloth and high porous active carbon was developed for hydrophilic layer of the cell. Characteristics of a single cell using the composite electrode showed the current density of $500mA/cm^2$ at the cell voltage of 0.4V at $120^{\circ}C$. For the operating of 20 days. the cell voltage at constant cell current densty of $100mA/cm^2$ was slightly reduced from 0.62V to 0.53V with the cell voltage decay rate of 14.5%. Power of 20-cell stack at 5.3V, $100^{\circ}C$ was about 180W.

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