Lithium film composite belt, preparation device and preparation method thereof

The invention relates to the technical field of lithium strip processing, in particular to a lithium film composite strip, a preparation device and a preparation method thereof.The lithium film composite strip comprises a lithium strip, a first covering film and a second covering film, the first covering film is compounded on the upper surface of the lithium strip, the second covering film is compounded on the lower surface of the lithium strip, and through holes are formed in the surfaces of the first covering film and the second covering film at equal intervals; in this way, through holes are formed in the first covering film and the second covering film, the through holes can be filled with the surface of the lithium strip during rolling, and the connection tightness between the lithium strip and the first covering film and the second covering film is improved. 本发明涉及锂带加工技术领域，具体涉及是一种锂膜复合带、制备装置及其制备方法，包括锂带、第一覆膜和第二覆膜，第一覆膜复合在锂带上表面，第二覆膜复合在锂带下表面，且第一覆膜和第二覆膜表面设置有间距均匀的通孔，这样通过在第一覆膜和第二覆膜上设置通孔，在进行延压时，锂带表面能够填充进通孔内，提高了与第