Flat-tube solid oxide stack with high performance for power generation and hydrogen production

Zhao Liu, Chengtian Wang, Beibei Han, Yafei Tang, Junkang Sang, Jianxin Wang, Jun Yang and Wanbing Guan

Applied Energy, 2024, vol. 362, issue C, No S0306261924003829

Abstract: This study presents the design, fabrication, and evaluation of a high-performance flat-tube solid oxide cell (FT-SOC) stack, which demonstrates exceptional power generation and hydrogen production capabilities. Comprising three large-sized FT-SOCs, each with an active area of 60 cm2, the stack was tested at 750 °C. It achieved a peak power density of 1.222 W/cm2 in fuel cell (FC) mode and an electrolysis current density of 1.283 A/cm2 at an average voltage of 1.3 V in electrolysis cell (EC) mode, marking the highest reported values for FT-SOC stacks to date. These results surpass the performance of most large-sized planar SOC stacks. Post-operation analysis revealed excellent interfacial contact between components, contributing to the stack's high performance. This study underscores the potential of FT-SOCs in efficient power generation and electrolytic energy storage applications, providing insights that could facilitate their industrial application.

Keywords: Flat-tube cell; Stack; Power generation; Hydrogen production; Solid oxide cell (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1016/j.apenergy.2024.122999

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