A Novel Micro-Tubular Solid Oxide Fuel Cell with a Porous Zirconia Support for Intermediate-Temperature Operation
A Novel Micro-Tubular Solid Oxide Fuel Cell with a Porous Zirconia Support for Intermediate-Temperature Operation
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一种新型微管式固体氧化物燃料电池，具有多孔氧化锆支撑，可在中温运行
DOI：
10.1149/06801.2259ecst
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
and Atsushi Tsutsumi,
中科院分区：
文献类型：
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作者：
Dhruba Panthi;Bokkyu Choi;and Atsushi Tsutsumi,
为了提高电池的电流收集效率和防止电池在氧化还原循环中降解，我们提出了一种新型的微管固体氧化物燃料电池（SOFC），其结构为惰性支架/集流器/内电极/电解质/外电极/集流器。在这项工作中，我们采用多步骤浸涂和低温共烧结的方法，根据所提出的设计制备了微管SOFC，分别使用钇稳定氧化锆（YSZ）， Ni， Ni-钪不稳定氧化锆（ScSZ）， ScSZ，掺锶锰酸镧(LSM) -ScSZ和LSM作为惰性支撑，阳极集流，阳极，电解质，阴极和阴极集流。制备的电池的电化学性能在中间温度范围内表征，这允许使用廉价的堆叠材料，也减缓了性能退化机制。我们的研究结果表明，在中温范围内，使用传统材料取代YSZ作为电解质和离子导电相的电极，可以显著提高所提出的微管SOFC的性能。
To improve current collection efficiency and prevent cell degradation under reduction–oxidation (redox) cycling, we have proposed a novel micro-tubular solid oxide fuel cell (SOFC) with a configuration of inert support/current collector/inner electrode/electrolyte/outer electrode/current collector. In this work, we applied multi-step dip coating and low-temperature co-sintering methods to fabricate a micro-tubular SOFC based on the proposed design using yttria-stabilized zirconia (YSZ), Ni, Ni-scandiastabilized zirconia (ScSZ), ScSZ, strontium-doped lanthanum manganite (LSM)–ScSZ, and LSM as the inert support, anode current collector, anode, electrolyte, cathode, and cathode current collector, respectively. The electrochemical performance of the fabricated cell was characterized in an intermediate temperature range, which allows for the use of cheap stack materials and also slows down the performance degradation mechanisms. Our results indicate that the performance of the proposed micro-tubular SOFC can be improved considerably in the intermediate temperature range using conventional materials when YSZ is substituted with ScSZ as the electrolyte and ion-conducting phase in the electrodes.