Fabrication and Evaluation of a Micro-Tubular Solid Oxide Fuel Cell with an Inert Support Using Scandia-Stabilized Zirconia Electrolyte
Fabrication and Evaluation of a Micro-Tubular Solid Oxide Fuel Cell with an Inert Support Using Scandia-Stabilized Zirconia Electrolyte
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DOI：
10.1149/2.1031514jes
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发表时间：
2015
影响因子：
3.9
通讯作者：
Dhruba Panthi;Bokkyu Choi;A. Tsutsumi
中科院分区：
文献类型：
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作者：
Dhruba Panthi;Bokkyu Choi;A. Tsutsumi
我们提出了一种新型的微管固体氧化物燃料电池（SOFC）的设计，其内部电极具有惰性支架和集成集流器，以提高电池的电流收集效率和还原氧化稳定性。在这项工作中，基于所提出的设计，使用钪稳定氧化锆（ScSZ）作为电解质制备了微管SOFC，因为ScSZ在很宽的温度范围内具有很高的离子电导率。采用钇稳定氧化锆（YSZ）、Ni、Ni-ScSZ、掺锶锰酸镧(LSM) -ScSZ和LSM分别作为惰性载体、阳极集流剂、阳极、阴极和阴极集流剂。在600 ~ 850℃的温度下对该电池的电化学性能进行了评估。由于其组件之间的欧姆电阻较低，该电池在高温和中温下均表现出良好的发电性能。此外，我们证实微管SOFC在750℃下稳定运行超过60小时。
We have proposed a novel micro-tubular solid oxide fuel cell (SOFC) design with an inert support and an integrated current collector for the inner electrode to improve current collection efficiency as well as reduction–oxidation stability of the cell. In this work, a micro-tubular SOFC based on the proposed design was fabricated using scandia-stabilized zirconia (ScSZ) as electrolyte owing to its high ionic conductivity over a wide range of temperatures. Yttria-stabilized zirconia (YSZ), Ni, Ni-ScSZ, strontium-doped lanthanum manganite (LSM)–ScSZ, and LSM were used as the inert support, anode current collector, anode, cathode, and cathode current collector, respectively. The electrochemical performance of the fabricated cell was evaluated at temperatures between 600 and 850 ◦ C. Because of the lower ohmic resistance across its components, the cell exhibited good power generation performance at high and intermediate temperatures. Additionally, we confirmed stable operation of the micro-tubular SOFC for over 60 h at 750 ◦ C.