▎ 摘　　要

NOVELTY - Preparation of carbon-coated current collector involves placing current collector in vertically to the horizontal direction, placing two ends of the current collector in winding machine and unwinding machine, placing at least one electrostatic spinning liquid supply device in two sides of the current collector, and performing electrostatic spinning. The electrostatic spinning liquid supply device comprises carbon-coated spinning liquid. USE - Preparation of carbon-coated current collector used in lithium ion battery (all claimed). ADVANTAGE - The method is simple, and uses electrostatic spinning method to perform double-sided simultaneous coating, so that the production efficiency is obviously improved, and solves the problem of scratch of scraper, difficulty in cleaning printing roller, trouble in replacing printing roller, complexity in controlling the surface density of carbon-coated layer, low production efficiency and high energy consumption in the existing coating process.