Coating equipment and battery production system

The utility model discloses coating equipment and a battery production system.The coating equipment comprises a conveying roller, a coating die head and a measuring device, the conveying roller is used for conveying a pole piece along a conveying path, the coating die head is located on the conveying path, the coating die head and the conveying roller are arranged at an interval, and the coating die head is used for forming a film layer on the pole piece; and the measuring device is positioned at the downstream of the coating die head on the transmission path and is used for measuring the width size of the film layer along the width direction of the pole piece. Therefore, the coating die head coats the pole piece on the transmission path to form a film layer, and the measuring device is located on the downstream of the coating die head on the transmission path and is connected with the transmission roller, so that the width size of the film layer can be measured in time after the coating die head forms the film layer on the pole piece; therefore, whether the width size of the film layer is qualified or not can be known in time, the risk that the pole piece with the unqualified film layer width size is fed into the subsequent production and processing procedure is reduced, the production efficiency is improved, and the production cost is reduced.