阳极支撑固体氧化物燃料电池制备研究  

Fabrication of anode supported PEN for solid oxide fuel cell

作　　者：刘国东[1] 单耕[1] 由宏新[1] 丁信伟[1] 阿布里提.阿布都拉 

机构地区：[1]大连理工大学化工学院,辽宁大连116012 [2]日本青森工业综合研究所新能源研究部

出　　处：《电源技术》2006年第4期266-268,共3页Chinese Journal of Power Sources

摘　　要：制备了Ni/YS│YSZ│LSM[YSZ——Y2O3掺杂(稳定)的ZrO2;LSM——锰酸镧即La0.85Sr0.15MnO3]阳极支撑单体固体氧化物燃料电池(SOFC)。其中阳极基底、YSZ电解质薄膜和LSM阴极分别采用干压成型方法、浆料喷覆工艺和浆料涂覆法制备。考察了电池制备过程中影响电池品质的主要因素,指出基底不均匀性和焙烧升温速率过快是导致成型压力在25～250MPa范围内阳极基底翘曲和开裂的主要原因;影响阳极基底与YSZ电解质薄膜共焙烧匹配性的主要因素是成型压力、预焙烧温度和焙烧升温速率。应用扫描电子显微镜(SEM)表征了电池微观结构,YSZ电解质薄膜的厚度约为15～20mm。考察了电池电性能,800℃下,阳极H2进气流量为250mL·min-1时,电池开路电压1.0973V,最大比功率0.13W·cm-2。进一步优化电极结构,可制备高性能的阳极支撑SOFC。Ni-YSZ｜YSZ｜LSM anode supported PEN for solid oxide fuel cell was fabricated. Anode substrate, thin film YSZ electrolyte and LSM cathode were fabricated by dry-pressing process, spray-coating technique and slurry coating process, respectively. Asymmetric anode substrate and rapid-raise temperature were the main factors of anode substrate warp and crack under molding pressure 25-250 MPa. Molding pressure, sinter temperature in advance and the raise velocity of temperature were the main influencing factors for the matching of anode substrate and thin film YSZ electrolyte. Dense and crack-free films were obtained with thickness in the range of 15-20 μm. The open circuit voltage （OCV） of the cells reached 1.097 3 V and maximum power density 0.13 W·cm^-2 at 800 ℃ with 250 mL·min^-1 of hydrogen air flow rate.

关 键 词：中温固体氧化物燃料电池 阳极支撑 阳极基底 

分 类 号：TM911.4[电气工程—电力电子与电力传动]