▎ 摘　　要

NOVELTY - Preparation of composite gel solid electrolyte containing amino groups involves (1) preparing amino-containing high specific surface area metal organic framework amino-MIL-101(chromium) containing amino groups, (2) dissolving lithium salt in ionic liquid, stirring to dissolve, obtaining lithium-containing ionic liquid with a concentration of 1-3 mol/L, (3) mixing the high specific surface area metal organic framework prepared in step (1) and the lithium-containing ionic liquid obtained in step (2) in a mass volume ratio of 4 g:5 mL, feeding into a ball mill, grinding, obtaining floury green gel block-like object, and rolling the floury green gel block-like object into a sheet with a roller press. USE - Preparation of composite gel solid electrolyte containing amino groups used in preparation of battery materials for lithium-air batteries (all claimed). ADVANTAGE - The method produces composite gel solid electrolyte, which retains high lithium ion conductivity of ionic liquid electrolyte, reduces the fluidity of ionic liquid electrolyte due to the existence of the polar group amino group, reduces the fluidity of ionic liquid electrolyte, and helps to effectively control the ionic liquid bis(trifluoromethane)sulfonimide ions and achieve uniform lithium ion transmission, so there is no need to add other polymer matrix materials. The preparation method is simple. The composite gel solid electrolyte provides battery with excellent conductivity and cycle stability. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (i) composite gel solid electrolyte containing amino groups obtained by the method; (ii) use of the composite gel solid electrolyte for preparation of battery materials; and (iii) preparation of lithium-air batteries, which involves using graphene as catalyst, mixing with Super P (RTM: carbon black), polyvinylidene fluoride, and N-methylpyrrolidone to form a slurry, spraying on foamed nickel collector as an air positive electrode, using metal lithium sheet as negative electrode, and assembling with the air positive electrode and the composite gel solid electrolyte.