▎ 摘　　要

NOVELTY - Double-effect catalytic lithium air battery electrode material comprises 55-75 wt.% cobalt (Co)-based alloy cluster, 20-40 wt.% graphene and 2-5 wt.% pyrolytic carbon. The shape structure of electrode material of double-effect catalytic lithium air battery is shell core structure. The shell layer is pyrolytic carbon. The inner core is graphene loaded with Co-based alloy cluster. USE - Double-effect catalytic lithium air battery electrode material. ADVANTAGE - The double-effect catalytic lithium air battery electrode material has ORR and OER double-effect catalytic performance, large lithium storage capacity, high charging and discharging efficiency, long circulating service life, simple technique and low production cost. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing material of double-effect catalytic lithium air battery, which involves: a. preparing Co-based alloy cluster precursor solution by adding soluble Co salt and soluble transition metal salt into water to fully dissolve, adding modified surface agent, adding graphene dispersing uniformly to obtain Co-based alloy cluster precursor solution; b. synthesizing graphene Co-based alloy cluster by adding cross-linking agent into Co-based alloy cluster precursor solution, stirring, adding reducing solution agent stirring, filtering, washing to neutral to obtain graphene loaded Co-based alloy cluster; c. activating graphene load Co-based alloy cluster by adding alkaline activator into water to dissolve, adding base alloy graphene load, mixing uniformly, drying, microwave, heating into multi-hole graphene Co-based alloy cluster; and d. pyrolyzing carbon coated porous graphene Co-based alloy cluster by adding water to water-soluble phenol formaldehyde resin, adding load Co porous graphene based alloy cluster, stirring, spraying and pyrolyzing granulation to obtain double-effect catalytic lithium air electrode material.