Influence of oxidant gas composition on the behavior of molten carbonate fuel cell with LiCoO2 and LiMg_(0.05)CoO2 cathodes

摘要

In the last years the molten carbonate fuel cells (MCFCs) were subjected to several studies due to their capability to produce electrical power with high efficiency, heat co-generation and low pollution. The new materials for the cathode represent one of the main research areas. The conventional cathode material is the lithialed nickel oxide Li_xNiO, which presents a high solubility in the melted carbonates. As alternative to Li_xNiO several materials were proposed: LiFeO2, Li2MnO3, La_(1-x)Sr_xCoO3, and LiCoO2 [1]. The more promising material seems to be the lithium cobaltite with solubility lower than Li_xNiO [2-6].