阳极支撑三层一体化结构电池的制备及性能  

Preparation and Performance of Tri-layer Composite Anode Supported Fuel Cell

作　　者：杨志宾[1] 郑紫微[1] 朱腾龙[1] 韩敏芳[1] 

机构地区：[1]中国矿业大学(北京)化学与工程系,北京10083

出　　处：《硅酸盐学报》2013年第2期129-133,共5页Journal of The Chinese Ceramic Society

基　　金：国家"973"计划(2012CB215404);中美(NSFC-NSF)材料领域合作研究(51261120387)资助项目

摘　　要：采用流延工艺制备了NiO-8%Y2O3/ZrO2(YSZ)阳极支撑三层一体化结构单电池,在此基础上采用浸渍工艺在多孔YSZ基体上低温制备了高活性阴极La0.6Sr0.4Co0.2Fe0.8O3–δ(LSCF)。研究发现:降低电极制备温度可以得到微观形貌可控、分布均匀的纳米电极,并且避免了电极与基体间的反应;通过控制浸渍次数,制备了不同LSCF含量的电池;随着浸渍量的增加,电极的极化电阻显著下降;在800℃时,LSCF质量分数为45%的电池的功率密度高达1090mW/cm2,同时电池稳定运行90h,表现出了很好的稳定性。Tri-layer composite NiO-8%Y2O3/ZrO2（YSZ） anode supported single cell for solid oxide fuel cell （SOFC） was fabricated via tape-casting, and high performance cathode La0.6Sr0.4Co0.2Fe0.8O3–δ （LSCF） was fabricated at a low temperature via infiltration in porous YSZ. The morphology-controlled and uniformly-distributed nano-electrode was obtained, and the reaction between the electrode and substrate was avoided as the cathode fabrication temperature was decreased. The single cells with different contents of LSCF were fabricated via the change of the infiltration time. The polarization resistance of the electrode decreased with increasing the infiltration content. The maximum output power density was 1 090 mW/cm2 at 800 ℃ and the cathode infiltration content of 45% （mass fraction）. In addition, the cell could operate stably for 90 h, showing the excellent stability.

关 键 词：固体氧化物燃料电池 三层一体化 阳极支撑 浸渍工艺 

分 类 号：TQ174.1[化学工程—陶瓷工业]