固体氧化物燃料电池(SOFC)被誉为21世纪最具有发展潜力的能源材料之一,它的热效率高、燃料的适应性强,能很好地满足区域供电、供热的需要,具有重要的经济和社会意义.本文综述了SOFC电解质的研究进展,指出在诸多的电解质材料中,尽管氧化铋系电解质拥有最高的电导率,但由于其化学稳定性很差,难以获得广泛的应用;氧化钇全稳定的氧化锆(YSZ)由于其中低温的电导率较低,只适用于高温SOFC;稀土掺杂的氧化铈和LaGaO3钙钛矿材料拥有较高的中低温电导率,性质较为稳定,是适用于中低温SOFC的电解质材料.
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