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首页> 外文会议>International symposium on solid oxide fuel cells;SOFC-XII >2R-Cell~(TM): A Universal Cell for an Easy and Safe SOFC Operation
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2R-Cell~(TM): A Universal Cell for an Easy and Safe SOFC Operation

机译：2R-Cell〜（TM）：通用电池，可轻松安全地进行SOFC操作

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Thanks to their high power density in a wide range of temperature, anode supported thin film electrolytes are nowadays the most used in the SOFC area. Unfortunately, the anodes suffer from an important problem: they are totally destroyed when re-oxidation occurs in the anode chamber. This happens, for instance, when fuel supply inappropriately stops. Cell peripheral re-oxidation is another well known phenomenon where failures are initiated. In all cases, when re-oxidation starts, the stack quickly undergoes a fatal destruction and the SOFC system definitely falls down. Fiaxell Sari, a new company active in the SOFC area has developed and is now offering a novel anode supported thin electrolyte, made with standard NiO-ZrO_2 material, the 2R-Cell™ that provides robustness and reliability upon multi thermo and redox-cycles. Such cells have now demonstrated for thousands of cumulated hours that they withstand full redox-cycles without any failure in the anode substrate or in the thin electrolyte as described with pictures. This paper presents the electrochemical behaviour of such cells, tested over 1700 hours and 16 full redox cycles in a short stack at Hexis AG (CH). No performance degradation could be measured from the last redox-cycle till the end of the test, 800 hours later. 2R-Cell of 6 cm in diameter and with cathode of 3.7 cm has been tested in POX simulation in the open flanges test setup with Crofer interconnect. Without any sealing, a power density of 225 mW/cm~2 could be achieved with an electrical efficiency of 39.8%.
机译：由于它们在很宽的温度范围内都具有很高的功率密度，因此阳极支撑的薄膜电解质是当今SOFC领域中使用最多的电解质。不幸的是，阳极遭受一个重要的问题：当在阳极室中发生再氧化时，它们被完全破坏。例如，当燃料供应不适当地停止时，就会发生这种情况。细胞周围的再氧化是引发故障的另一种众所周知的现象。在所有情况下，当重新氧化开始时，烟囱会迅速遭受致命破坏，SOFC系统肯定会掉落。活跃于SOFC领域的新公司Fiaxell Sari已开发，现在正在提供一种新型的阳极支撑薄电解质，该电解质由标准NiO-ZrO_2材料2R-Cell™制成，可在多个热循环和氧化还原循环中提供坚固性和可靠性。这种电池现在已经证明了数千个累积小时，可以承受完整的氧化还原循环，而在阳极基板或稀薄的电解质中没有出现任何故障，如图片所示。本文介绍了此类电池的电化学行为，这些电池在Hexis AG（CH）的短堆栈中经过1700小时和16个完整的氧化还原循环测试。从最后一个氧化还原循环到测试结束（800小时），均未发现性能下降。直径为6厘米，阴极为3.7厘米的2R电池已在带有Crocro互连的开放式法兰测试装置的POX模拟中进行了测试。没有任何密封，功率密度为225 mW / cm〜2，电效率为39.8％。

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