Three-dimensional flow channel arrangements in an anode-supported honeycomb solid oxide fuel cell
Three-dimensional flow channel arrangements in an anode-supported honeycomb solid oxide fuel cell
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阳极支撑蜂窝固体氧化物燃料电池中的三维流道排列
DOI：
10.1007/s00231-017-2154-9
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发表时间：
2017
影响因子：
2.2
通讯作者：
Kitahara Tatsumi
中科院分区：
文献类型：
--
作者：
Nakajima Hironori;Murakami Shunzaburo;Ikeda Sou;Kitahara Tatsumi
阳极支撑的蜂窝状SOFC可以实现高体积功率密度，并改善高温下的热机械耐久性。到目前为止，我们已经制造了一个蜂窝电池，阴极层由La0.7Sr0.3MnO3（LSM）和电解质层的8 YSZ的多孔阳极支持在蜂窝形式的Ni/8 YSZ。在本研究中，电流-电压和体积功率密度特性的电池具有不同的阳极/阴极流动通道的安排，在不同的流量下的进料氢气显示的三维燃料的传输和分布的多孔阳极支撑对电池性能的影响进行了测量。还评估了随电流变化的电池的欧姆电阻，以澄清取决于阳极流动通道布置的燃料耗尽对阳极支撑件的镍再氧化。从而讨论了不同燃料供给量的流道布置方式的优势差异，以选择更合适的运行方式。
An anode-supported honeycomb SOFC can achieve high volumetric power density and improve thermo-mechanical durability at high temperatures. We have so far fabricated a honeycomb cell with a cathode layer made of La0.7Sr0.3MnO3(LSM) and an electrolyte layer of 8YSZ on a porous anode support in the honeycomb form of Ni/8YSZ. In the present study, current-voltage and volumetric power density characteristics of the cells having different anode/cathode flow channel arrangements are measured under different flow rates of fed hydrogen to show the effect of three-dimensional fuel transport and distribution in the porous anode support on the cell performance. Ohmic resistances of the cells varying with current is also evaluated to clarify the nickel re-oxidation of the anode support by fuel depletion depending on the anode flow channel arrangements. We thereby discuss the difference of the advantage between the flow channel arrangements depending on the flow rate of the fed fuel to choose more suitable operation mode.