A modeling study of lifetime and performance improvements of solid oxide fuel cell by reversed pulse operation

Chromium poisoning of the air electrode is a primary degradation mechanism for solid oxide cells (SOCs) operating under fuel cell mode. Recent experimental findings show that reversed pulse operation SOCs operated as electrolyser can reverse this and extend lifetime. Here, we use multiphysics model an SOC to investigate effects alleviating chromium electrode. We study time fraction electrolysis modes, cyclic starting after certain duration, current densities on lifetime, total power, hydrogen production. Our modeling shows enhances lifetime power all different cases considered in study. Moreover, results suggest production be increased by at longer times mode, from beginning, lower densities. All all, paper documents establishes computational framework serve platform assess quantify profitability co-production through operation.