Double-sided high-speed gravure coating device and method for lithium battery

The invention belongs to the technical field of gravure coating for lithium battery materials, and specifically relates to a double-sided high-speed gravure coating device and a method for a lithium battery. According to the double-sided high-speed gravure coating device for the lithium battery, coiled lithium battery materials, that is, aluminium foils or copper foils, sequentially pass through an unwinding mechanism, a charging traction mechanism and a front-surface coating mechanism from the left to right, then enter upwards a lower drying box and pass downwards through a back-surface coating mechanism, then pass upwards through an upper drying box from the left to right, and then pass downwards through a discharging traction mechanism and are led to a winding mechanism for winding. According to the double-sided high-speed gravure coating device and method for the lithium battery, a coating manner is changed into quantitative and same-direction high-speed coating adopting a cable from the original 'reverse