Anode Reaction: 2H2(g) + 2O 2-→ 2H2O(g) + 4e - Equation Overall Reaction: 2H2(g) + O2(g) → 2H2O(g) Equation Apart from the anode, cathode and electrolyte, an interconnect is used to connect the individual cells in series to generate useful amounts of power. In simple terms, the interconnect material is required to combine the current generated by individual cells, and thus should ideally possess good electronic conductivity. In addition, it should be chemically stable concerning both anode and cathode materials, and stable in both oxidising and reducing atmospheres. In the following sections of the paper, requirements for different components and prominent materials families fulfilling the said requirements will be reviewed in detail.