Thin Solid Film Electrolyte and Its Impact on Electrode Polarization in Solid Oxide Fuel Cells Studied by Three-Dimensional Microstructure-Scale Numerical Simulation

被引：7

作者：

Prokop, Tomasz A. ^{[1
]}

Brus, Grzegorz ^{[1
]}

Kimijima, Shinji ^{[2
]}

Szmyd, Janusz S. ^{[1
]}

机构：

[1] AGH Univ Sci & Technol, Dept Fundamental Res Energy Engn, PL-30059 Krakow, Poland

[2] Shibaura Inst Technol, Dept Machinery & Control Syst, Tokyo 1358548, Japan

来源：

ENERGIES | 2020年 / 13卷 / 19期

关键词：

solid oxide fuel cell; electrolyte; focused ion beam scanning electron microscopy; simulation; microstructure; CATHODE; MODEL;

D O I：

10.3390/en13195127

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

In this work, a three-dimensional microstructure-scale model of a Solid Oxide Fuel Cell's Positive-Electrolyte-Negative assembly is applied for the purpose of investigating the impact of decreasing the electrolyte thickness on the magnitude, and the composition of electrochemical losses generated within the cell. Focused-Ion-Beam Scanning Electron Microscopy reconstructions are used to construct a computational domain, in which charge transport equations are solved. Butler-Volmer model is used to compute local reaction rates, and empirical relationships are used to obtain local conductivities. The results point towards three-dimensional nature of transport phenomena in thin electrolytes, and electrode-electrolyte interfaces.

引用

页数：14

共 29 条

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