Electrode support structure and preparation method thereof, fuel cell monolithic, fuel cell and electrolytic cell

The invention discloses an electrode support body structure and a preparation method thereof, a fuel cell monolithic, a fuel cell and an electrolytic bath, the electrode support body structure comprises a support body made of an aluminum-containing material, at least one side of the support body is provided with a modified layer, the modified layer comprises a crystal of a nanorod-shaped structure growing outwards from the corresponding side of the support body, and the crystal of the nanorod-shaped structure is arranged on the surface of the support body. Perovskite oxide with conductivity and doping treatment is arranged between crystal boundaries of the crystals. The composite material has good thermal stability and strong conductivity, and further enhances the performance of the fuel cell prepared from the composite material. 本发明公开了一种电极支撑体结构及其制备方法、燃料电池单片、燃料电池和电解池，电极支撑体结构包括：含铝材料制成的支撑体，所述支撑体的至少一侧设有改性层，所述改性层包括由所述支撑体相应侧向外生长的纳米棒状结构的晶体，晶体的晶界间具有导电性能并掺杂处理的钙钛矿氧化物。它热稳定性好，导电能力强，进一步加强了由其制备的燃料电池的性能。