Synthesizing of lanthanide rare earth oxide with nano size and mesoporous structure; Loading, coating and compositing of lanthanide rare earth oxide; Charging-discharging reversible cycling technology of lithium-air battery.  Description of the technical advantages:Mesoporous rare earth oxide exhibits excellent bi-functional catalytic performance to the oxygen reduction and evolution reactions of air electrode due to its special structure. Further loading, coating and compositing technologies can enhance the oxygen reduction and evolution capabilities of the air electrode in charging and discharging cycle. The technology is expected to realize the rechargeable performance of lithium-air battery and facilitate the industrialization of new generation large capacity lithium-air battery. Expected to reach the market value:Lithium-air battery is the solely new generation battery system that is competitive to petroleum currently. In the fast developing period of lithium battery in the future, lithium battery will definitely become the priority power energy for portable electronic production and electric vehicles for its excellent energy density and environmental friendly features. It has a promising future. If lithium battery can replace lead-acid battery, Ni-Cd battery and NiMH battery that have much lower specific energy, it will have a much larger market share and huge market value. Ideal way of cooperation:Technical Transformation Technological Development