Integrated Multiscale Modeling of Solid Oxide Electrodes, Cells, Stacks, and Systems

Abstract

An integrated multiscale multiphysics framework to model solid oxide electrochemical cell systems is discussed. The framework directly couples electrode, single cell, stack, and system models using a hierarchical approach with minimal loss of information across the scales. The success of the model framework in better understanding solid oxide cells at the microscale and the industrial scale showcases it as a powerful tool for the rational design and upscaling of novel lab-scale materials and devices for next-generation chemical and electrochemical technologies.

Syngas Production from CO2 and H2O via Solid-Oxide Electrolyzer Cells: Fundamentals, Materials, Degradation, Operating Conditions, and Applications

“…In practice, because the power output of a single coelectrolysis cell is often insufficient for practical applications, the cell’s total active area must be expanded. As shown in Figure , SOEC models can be categorized as micromodels and cell-, stack-, and system-level models depending on the length scale. − However, a simple areal expansion renders cells undesirable for practical applications because the preparation of large-area ceramic films is difficult and the voltage of a single cell is insufficient. Therefore, to solve these problems, cells must be bundled and stacked.…”