임피던스법을 이용한 연료전지의 특성 연구

Fuel Cell Performance by the Impedance Method

  • 서장수 (송원대학 전기과) ;
  • 김귀열 (송원대학 전기과) ;
  • 명기환 (우송공대 전자정보계열) ;
  • 이성일 (충주대학교 안정공학과, 전기공학과) ;
  • 김용주 (충주대학교 안정공학과, 전기공학과)
  • 발행 : 2000.07.01

초록

The molten carbonate fuel cell has conspicuous feature and high potential in being used as an energy converter of various fuel to electricity and heat. However, the MCFC which use strongly corrosive molten carbonate at 650$^{\circ}C$ have many problem. Systematic investigation on corrosion behavior of Fe/20Cr/Ti alloys has been done in (62+38)mol% (Li+K)CO3 melt at 923K by using steady state polarization and electrochemical impedance spectroscopy method. And, The research and development for the solid oxide fuel cell have been promoted rapidly and extensively in recent years, because of their high efficiency and future potential. Therefore this paper describes the manufacturing method and characteristics of anode electrode for SOFC, by the way , Ni-YSZ materials are used as anode of SOFC widely. So in this experiments, we investigated the optimum content of Ni, by the impedance characteristics, overvoltage. As a results, the performance of Ni-YSZ anode(40vo1%) was better excellent than the others.

키워드