【摘要】 分析了以甲烷为燃料气体、空气为氧化气体的固体氧化物燃料电池中电子、氧离子在电池的阴极、阳极和电解质中的输运过程以及电子导电型电极有效反应区结构。具体研究了Pt|YSZ|Ag固体氧化物燃料电池(SOFC)的输出功率与电池运行温度的关系并与实验结果进行了对照,探讨了燃料电池中的主要电荷输运过程与电极有效反应区结构的关系以及它们对电池性能的影响因素。研究表明:在固体氧化物燃料电池中,电解质/电极/气体所形成的三相界面的结构、电极本身的导电性能和运行温度都直接影响电池的性能更多还原

【Abstract】 Transports processes of electron and oxygen ion in cathode, anode and electrolyte of SOFC as well as the structure of effective reaction region at the three phase interface were analyzed. The relevance between the output power of Pt｜YSZ｜Ag SOFC and its operating temperature was investigated specifically and was compared with the experiment results. Meanwhile, the relevance between the main transport process of charge and the structure of effective reaction region as well as the effect on the SOFC were also investigated. The results show that the structure of three phase interface, the conductive properties of electrodes and the operating temperature affect the performance of SOFC directly.更多还原