DISPENSING AND COATING DEVICE FOR SEPARATOR OF LITHIUM BATTERY

The present disclosure relates to the technical field of lithium-ion battery (LIB) separator preparation and in particular to a dispensing device for a LIB separator. The dispensing device for a LIB separator mainly includes a coating adhesive transferring device, a feed amount controller, and a planar bottom roll. The coating adhesive transferring device includes an adhesive accommodating device and a relief roll. Accommodating grooves for accommodating adhesives are provided on the adhesive accommodating device. Transferring protrusions are arranged on a rolling surface of the relief roll. The relief roll is located between the adhesive accommodating device and the planar bottom roll. The transferring protrusions are inserted into the accommodating grooves at a place where the relief roll contacts the adhesive accommodating device. The feed amount controller is configured to detect and control the feed amounts when the transferring protrusions are inserted into the accommodating grooves. The planar bottom roll is located under the relief roll. A film passing gap for allowing a coating film to pass through is provided between the planar bottom roll and the relief roll. The thicknesses of coating layers formed with the dispensing device are larger, and thicknesses and coverage rates of adhesive points are controlled simply and conveniently.