| abstract |
The positive electrode may comprise an electrically conductive scaffold, conductive catalytic A-site deficient perovskite particles chemically bonded to the scaffold, ion and gas permeable ionomers connecting the particles, and a hydrophobic porous layer on the scaffold. The secondary air electrode is a conductive bifunctional catalyst comprising A I -site lanthanum cations and A II -site alkaline earth metal cations A-site deficient perovskite particles, ion and gas permeable ionomer connecting the particles, and It may include a conductive scaffold in electrical contact with the particles. |