Study on assembly pressure of molten carbonate fuel cells based on in-situ sintered model

An in-situ sintered model of molten carbonate fuel cells (MCFCs) with environment-friendly aqueous matrices was proposed in order to optimize the performance of MCFC unit cell. The optimum assembly pressure range was settled based on the sintered model. Moreover, an environment-friendly aqueous α-LiAlO₂ matrix was fabricated by a tape-casting process using distilled water as solvent and was applied into MCFC successfully. The obtained single drying green sheet had a thickness of 200–300 μm, no defects, and good workability. The microstructure of the α-LiAlO₂ required in an MCFC was obtained using this method. In this work, the MCFC using the matrices was assembled and tested. The output power density could reach 149.2 mW cm⁻² at the current density of 200 mA cm⁻² when the assemble pressure was 7.01 MPa.