Abstract:
A material for a solid oxide fuel cell, the material including: a first metal oxide represented by Formula 1 and having a perovskite crystal structure; a second metal oxide having an electronic conductivity which is greater than an electrical conductivity of the first metal oxide, a thermal expansion coefficient which is less than a thermal expansion coefficient of the first metal oxide, and having a perovskite crystal structure; and a third metal oxide having a fluorite crystal structure: BaaSrbCoxFeyZ1-x-yO3-δ, Formula 1 wherein Z is at least one element selected from an element of Groups 3 to 12 and a lanthanide element, a and b satisfy 0.4≦a≦0.6, 0.4≦b≦0.6, and a+b≦1, x and y satisfy 0.6≦x≦0.9, 0.1≦y≦0.4, and x+y
Abstract translation:1.一种固体氧化物型燃料电池用材料,其特征在于,具有由式1表示的具有钙钛矿结晶结构的第一金属氧化物, 具有比第一金属氧化物的电导率大的电子导电性的第二金属氧化物,小于第一金属氧化物的热膨胀系数的热膨胀系数,并具有钙钛矿晶体结构的第二金属氧化物; 和具有萤石晶体结构的第三金属氧化物:BaaSrbCoxFeyZ1-x-yO3-δ,式1其中Z是选自第3〜12族元素中的至少一种元素和镧系元素,a和b满足0.4≤a@ 0.6,0.4 @ b @ 0.6和a + b @ 1,x和y满足0.6 @ x @ 0.9,0.1 @ y @ 0.4和x + y <1,并且选择δ,使得第一金属氧化物是静电的 中性。
Abstract:
A functional layer material for a solid oxide fuel cell (SOFC) including a ceria ceramic oxide and a metal oxide including a metal, except for zirconium, having a Vegard's slope X represented by Equation 1 and having an absolute value |X| of the Vegard's slope X, wherein 27×105≦|X|≦45×105: X=(0.0220ri+0.00015zi) (1), wherein ri is an ionic radius difference between the metal and Ce4+, and zi is a charge difference between the metal and Ce4+.
Abstract translation:一种用于固体氧化物燃料电池(SOFC)的功能层材料,其包括二氧化铈陶瓷氧化物和包含除了锆之外的金属的金属氧化物,其具有由等式1表示的Vegard斜率X并具有绝对值| X | 的Vegard斜率X,其中ri是金属和Ce4 +之间的离子半径差,zi是电荷的离子半径差,其中27×105 @ | X | @ 45×105:X =(0.0220ri + 0.00015zi)(1) 金属与Ce4 +之间的差异。