SPLIT CALENDERING AND ONE-TIME FILM COATING LITHIUM REPLENISHMENT APPARATUS

摘要

The present invention relates to a split calendering and one-time film coating lithium replenishment apparatus, for use in replenishing lithium for an electrode sheet. The split calendering and one-time film coating lithium replenishment apparatus comprises: a first upper surface calendering means used for calendering a first upper surface lithium ribbon into a first upper surface lithium film; a second upper surface calendering means used for calendering a second upper surface lithium ribbon into a second upper surface lithium film, the second upper surface calendering means and the first upper surface calendering means being provided in parallel and staggered manner in the traveling direction of the electrode sheet; and a film coating means for simultaneously attaching the first upper surface lithium film and the second upper surface lithium film onto an upper surface of the electrode sheet and making the two films be butt-joined in parallel in the width direction of the electrode sheet, the film coating means being provided at the downstream of the first upper surface calendering means and the second upper surface calendering means in the traveling direction of the electrode sheet. The present invention separately calenders lithium films having a narrow width, and attaches, after the calendering, the lithium films onto the upper and lower surfaces of an electrode sheet in a one-time manner to together form a lithium film having a wide width, so that the consistency of the thickness of the lithium film can be ensured.