A project, funded in part by the European Commission, has dealt with the costs and durability of SOFC stack components, cells and stacks. Cells showed low performance losses during thermal cycling (0.01% per cycle) and the degradation rate was below 1% per 1000h up to 300 mA/cm~2. The current density and the fuel utilisation (and thereby the water content) was found to be more important for the durability than the operating temperature. The contact between the cell and the metallic interconnect was examined and improvements of the contact resistance were made. Cost calculations showed that the objectives of the project were insufficient for a commercialisation of the SOFC technology. The degradation rate should be lowered to 0.5% per 1000h, or better, and the power density should be raised. In general, it was concluded that degradation tests should be done over long periods (in excess of 1000 h).
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机译：由欧洲委员会部分资助的一个项目已经解决了SOFC电池组组件，电池和电池组的成本和耐用性问题。电池在热循环过程中表现出较低的性能损失（每个循环0.01％），在300 mA / cm〜2的电流下，每1000h的降解率低于1％。发现电流密度和燃料利用率（以及由此的水含量）对于耐久性而言比工作温度更重要。检查了电池与金属互连之间的接触并改善了接触电阻。成本计算表明，该项目的目标不足以实现SOFC技术的商业化。降解率应降低至每1000h 0.5％或更高，并应提高功率密度。总的来说，得出的结论是，降解测试应长期（超过1000小时）进行。
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