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Journal of the Korean Industrial and Engineering Chemistry, Vol.6, No.6, 977-983, December, 1995
저온 저압성형 용융탄산염 연료전지용 전해질판의 제조 및 특성
The Fabrication and Characteristics of Electrolyte Matrix for MCFC under Low-Temperature and Low-Pressure
초록
용융탄산염 연료전지에 유용한 저온 저압성형 전해질 matrix를 제조하기 위해 결합재로서 polyethylene을 사용하여 성형온도, 압력, 전매질 조성 및 결합제의 양의 변화가 전해질 malrlx 특성에 미치는 영향을 조사하였다. 전해질 matrix의 상온 제조시 최적 성형압력은 150kg/㎠였으며, 160℃에서는 150kg/㎠이상의 성형 압력하에서 발생되는 전해질 matrix내 polyethylene의 응집현상과 열응력으로 인해 최적 성형압력은 100kg/㎠였다. 160℃에서 제조된 전해질 matrix의 강도는 결합제로 첨가된 polyethylene의 영향을 받아 상온 제조시보다 높았다. 또한 상온에서 전해질 matrix의 특성에 가장 큰 영향을 미지는 인자는 전해질 함량이었으며, 160℃에서는 polyethylene의 함량이었다.
The electrolyte matrix for MCFC was fabricated by using a polyethylene as a binder under low-temperature and low-pressure. The effects of compaction temperature, pressure, composition of electrolyte matrix and amount of hinder on characteristics of electrolyte matrix were investigated in this study. The optimum compaction pressure was 150kg/㎠ at 25℃, 100kg/㎠ at 160℃ because of the cluster of polyethylene and thermal stress beyond 150kg/㎠, respectively. The strength of electrolyte matrix fabricated at 160㎠ was higher than that of electrolyte matrix fabricated at 25℃ due lo the effect of polyethylene. The most important factor effecting on the characteristics of electrolyte matrix was the amount of electrolyte at 25℃, amount of polyethylene at 160℃, respectively.
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