▎ 摘　　要

NOVELTY - The method comprises (1) activating the microporous membrane in a citric acid solution, coat one side with lithium-zeolite slurry, and the other side with graphene slurry, and obtaining a high-temperature-resistant diaphragm with a lithium-zeolite coating on one side and a graphene coating on the other, (2) coating the anode slurry on the aluminum film, drying and pressing to obtain the anode sheet, coating the cathode slurry on the copper film, drying and pressing to obtain the cathode sheet, and (3) assembling the anode, high temperature resistant diaphragm and cathode, where the lithium-zeolite coating of the high temperature resistant diaphragm is close to the anode, and the graphene coating is close to the cathode, obtaining the electric core, and injecting electrolyte to obtain the lithium-ion battery. USE - Method for preparing lithium-ion battery based on high temperature resistant diaphragm. ADVANTAGE - The method adopts the water-based polyvinylidene fluoride binder to increase the affinity between the anode, cathode and separator, reduces the internal resistance of the interface, and enhances high temperature resistance and cycle stability, improves the performance of anode and cathode, and enhances the performance of lithium-ion batteries.