▎ 摘　　要

NOVELTY - Preparation of oily conductive agent slurry comprises mixing N-methyl-2-pyrrolidone (NMP) and dispersant at mass ratio of 48-52:0.48-0.55, and stirring to obtain first mixture; shearing heat-treated graphene, grinding and peeling, and mixing with portion of first mixture to obtain second mixture, where mass ratio of NMP to graphene in second mixture is 48-55:2-3; mixing heat-treated carbon nanotubes with portion of first mixture and subjecting to turbo dispersion treatment to obtain third mixture, where mass ratio of NMP to carbon nanotubes in third mixture is 48-52:1.5-2.5; performing mixing treatment and vortex dispersion treatment on second mixture and third mixture at mass ratio of 5-3:1.8-1 to obtain fourth mixture; and subjecting to demagnetization and defoaming treatment. USE - The method is sued for preparing oily conductive agent slurry. ADVANTAGE - The method can not only reduce amount ratio of oil-based conductive agent in battery, but also can enhance conductive performance of electrode material. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of the electrode sheet comprising stirring adhesive so that stirred adhesive is transparent and has no bubbles to obtain first slurry; mixing and stirring first slurry with oily conductive agent slurry to obtain second slurry; mixng and stirring lithium iron phosphate with second slurry to obtain third slurry; filtering third slurry, and using film applicator to coat filtered third slurry on surface of metal substrate to obtain membrane; and drying membrane to obtain electrode sheet.