Ni-CGO阳极支撑ScSZ/CGO复合电解质电池的制备及性能

被引：1

作者：

由宏新 ^{[1
]}

陈刚 ^{[2
]}

刘瑞瑞 ^{[1
]}

周一卉 ^{[1
]}

阿布理提阿布都拉 ^{[2
]}

丁信伟 ^{[1
]}

机构：

[1] 大连理工大学化工学院

[2] 日本青森工业综合研究所新能源研究部

来源：

硅酸盐学报 | 2009年 / 37卷 / 08期

关键词：

固体氧化物燃料电池; 复合电解质; 氧化钪稳定氧化锆; 共压法;

D O I：

10.14062/j.issn.0454-5648.2009.08.030

中图分类号：

TM911.3 [电解质电池];

学科分类号：

0808 ;

摘要：

用柠檬酸溶胶–凝胶法合成了Ce0.85Gd0.15O2–δ(CGO),用共沉淀法合成了掺摩尔分数为11%Sc2O3稳定的ZrO2(scandium oxide-stabilized zirconia,ScSZ)电解质材料。通过X射线衍射和透射电镜对电解质材料的物相、形貌和成分进行表征。结果表明:CGO和ScSZ在各自的煅烧温度下均形成了单一的立方萤石结构晶态;ScSZ颗粒的粒径约为20nm。用共压法分别制备了以NiO–CGO阳极支撑的CGO单层电解质和ScSZ/CGO复合电解质的基体,并在基体上涂覆阴极制作单电池。在650～800℃范围内测试单电池的电性能。结果表明:ScSZ/CGO双层电解质电池的开路电压和最大功率密度均高于单层CGO电解质电池;在800℃电流密度和功率密度达到最大值,分别为677.5mA/cm2和197.3mW/cm2。说明ScSZ/CGO双层电解质有效地提高了电池的性能。

引用

页码：1306 / 1310

页数：5

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