| 인산형 연료전지(PAFC)용 전해질 매트릭스의 제조방법이 전극/매트릭스 계면특성에 미치는 영향 |
| 윤기현, 최재열, 장재혁, 김창수1 |
연세대학교 세라믹공학과
1한국에너지기술연구소 |
| Effect of Preparation Methods of a Matrix Retaining Electrolyte on the Characteristics of a Phosphoric Acid Fuel Cell |
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| ABSTRACT |
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The matrices which consisted of SiC whisker, PES(polyesterasulfone) as a binder, span 80(sorbitan monooleate) as a surfactant, TPP(triphenyl phosphate) as a plasticizer and dichloromethane as a solvent, have been prepared by the various methods such as tape casting, rolling, tape cast-coating and roll-coating method. The fuel cells of single stack type using these matrices are characterized by ac impedance spectroscopy and cyclic voltammetry technique. A fuel cell using a matrix prepared by the tape cast-coating method shows the best performance of 466.34 mA/$textrm{cm}^2$ at 0.6V because it has the lowest polarization resistance at the interface between electrodes and a matrix due to the largest three phase contact region of gases, catalyst and electrolyte. |
| Key words:
Matrix retaining electrolyte, Phosphoric acid fuel cell, Polarization resistance, Three phase contact region |
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