A novel synergistic process and recipe for fabrication of a high integrity membrane electrode assembly of solid oxide fuel cell

摘要

A recipe and two sequential processes for fabrication of electrode substrates of solid oxide fuel cells (SOFCs) are described in this invention. The typical recipe consists of 50ˆ¼86wt% electrolyte (8YSZ) or 50ˆ¼80wt% anode electrode (NiO/8YSZ), 12ˆ¼22wt% MEK (solvent 1), 5ˆ¼9wt% EtOH (solvent 2), 1ˆ¼2wt% TEA (dispersant), 0.5ˆ¼2wt% DBP (plasticizer 1), 0.5ˆ¼2wt% PEG (plasticizer 2), 3ˆ¼6wt% PVB (binder), and 0.1ˆ¼10wt% graphite (pore former). Two sequential processes include: 1. The process for preparation of the green tape slurry from materials of the recipe, 2. The synergistic process for fabrication of a high integrity membrane electrode assembly (MEA) of SOFC from the prepared electrode substrates.