固体氧化物燃料电池纽扣电池的电化学性能测试技术研究

Electrochemical Performance Test Technology of Solid Oxide Fuel Cell Button Cell

固体氧化物燃料电池(SOFC)能够将燃料的化学能转化为电能,具有能量转化效率高、无污染和燃料可多样化等优点。SOFC可直接将碳氢化合物燃料通入阳极来实现燃料电池的工作,由于其结构简单,无需复杂的重整设备,燃料转化效率高等优点受到研究者的重视。固体氧化物燃料电池的测试技术是对其进行表征的重要手段。当使用碳氢化合物为燃料时,对SOFC纽扣电池的电化学性能的测试就比较复杂了。因为在测试过程中会遇到阳极的还原和重氧化问题、阳极的碳沉积失效问题以及电池片电解质在共烧过程中因应力较大开裂的问题等等。本论文将SOFC纽扣电池在使用碳氢燃料为还原剂测试性能时所遇到的各种问题进行了梳理和总结,该研究结果可提供相关研究人员一个指导和借鉴,提高SOFC的测试技术。

Solid oxide full cell(SOFC) can convert full chemical energy into electricity with high energy conversion efficiency,no pollution and diversified fuels,etc.SOFC can work by feeding hydrocarbon fuel directly into the anode of fuel cells.Due to its simple structure,needing no complex reforming equipment,and higher fuel conversion efficiency,it called the attention of researchers.The testing technique of a solid oxide fuel cell is an important means to characterize it.The test of the electrochemical properties of SOFC button battery using hydrocarbons as fuels is more complicated because the testing process will encounter problems including anode reduction and heavy oxidation,anode carbon deposition failure,cell electrolyte cracking in the sinter process due to large stress,and so on.This paper aims to settle the problems in the performance test of SOFC button battery using hydrocarbon fuels as reducing agents.The research results can provide a guidance and reference for concerned researchers and the level of SOFC testing technology.