Rapid laser reactive sintering of BaCe0.7Zr0.1Y0.1Yb0.1O3-δ electrolyte for protonic ceramic fuel cells

IF 5.4 Q2 CHEMISTRY, PHYSICAL

Journal of Power Sources Advances Pub Date : 2020-08-01 DOI:10.1016/j.powera.2020.100017

Shenglong Mu , Hua Huang , Akihiro Ishii , Zeyu Zhao , Minda Zou , Patrick Kuzbary , Fei Peng , Kyle S. Brinkman , Hai Xiao , Jianhua Tong

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引用次数: 6

Abstract

The state-of-the-art protonic ceramic electrolyte BaCe_0.7Zr_0.1Y_0.1Yb_0.1O_3-δ (BCZYYb) dense films were successfully deposited on the pre-sintered Ni(O)+BCZYYb anode substrate by recently developed rapid laser reactive sintering (RLRS) method. The separation of the deposition of dense electrolyte from the preparation of porous anode makes it possible to manufacture protonic ceramic fuel cells (PCFCs) with more desirable electrolyte and anode microstructures. The PCFC single cells prepared after introducing the cathode thin film BaCo_0.4Fe_0.4Zr_0.1Y_0.1O_3-δ (BCFZY0.1) showed OCVs of 0.94–0.97V and peak power densities of 97 mW/cm² at 600 °C and 121 mW/cm² at 600–650 °C under Air/H₂ gradient. The proton conductivity of the BCZYYb film derived the RLRS-derived single cell showed a moderate proton conductivity of 3.7 × 10⁻³S/cm at 600 °C. The higher PCFC performance can be expected by further optimization of the thickness, compositions, and/or microstructures of the component layers.

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质子陶瓷燃料电池用BaCe0.7Zr0.1Y0.1Yb0.1O3-δ电解质的快速激光反应烧结

采用快速激光反应烧结(RLRS)方法，在预烧结Ni(O)+BCZYYb阳极衬底上成功沉积了最先进的质子陶瓷电解质BaCe0.7Zr0.1Y0.1Yb0.1O3-δ (BCZYYb)致密膜。致密电解质沉积与多孔阳极制备的分离使得制备具有更理想电解质和阳极微结构的质子陶瓷燃料电池(pcfc)成为可能。在空气/氢气梯度下，引入阴极薄膜BaCo0.4Fe0.4Zr0.1Y0.1O3-δ (BCFZY0.1)制备的PCFC单体电池在600 ℃和600 ~ 650 ℃下的ocv分别为0.94 ~ 0.97 v和峰值功率密度分别为97 mW/cm2和121 mW/cm2。在600 °C时，rlrs单细胞衍生的BCZYYb膜的质子电导率为3.7 × 10−3S/cm。通过进一步优化组件层的厚度、成分和/或微结构，可以预期更高的PCFC性能。

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