One of the most recent strategies to enhance the electrode performance is the preparation of nanocomposite materials, leading to an increase of the triple-phase-boundary (TPB) length. In this way, spray-pyrolysis deposition has been proposed due to the fact that it is an easy method that has been applied previously to prepare nanocrystalline electrodes, with a significant improvement in comparation with traditional electrodes. In this work, a new nanocomposite based on manganese-doped lanthanum chromite (LCM) and gadolinium doped ceria (CGO) has been proposed for highly efficient and stable electrodes for Solid Oxide Fuel Cells.