A unit for spreading an adhesive onto a moving film, includes at least one pair of abutments (11) upon which is mounted a first pick-up roller (12) for collecting a quantity of adhesive from a collection zone (13), a second roller (14) that rotates in contact with the first roller (12), intended to receive the quantity of adhesive, and a third roller (15) that rotates in contact with the second roller (14), wherein the abutments include at least one fixed portion (19) and one moving portion (20, 21) that can be firmly connected to the fixed portion, the moving portion being configured: to house a tank (17) in which the adhesive collection zone is found, or to house an additional fourth roller (18) positioned at a given distance from the first roller, the collection zone being located in the upper space between the first and the fourth roller (12, 18).

An electrode plate manufacturing method of the present disclosure uses an electrode plate manufacturing apparatus including: a first roll and a second roll facing each other at a first position; and a third roll facing the second roll at a second position, and the manufacturing method rotates the first to the third rolls, feeds an electrode material at the first position, and brings a current collecting foil to pass through the second position. The electrode plate manufacturing apparatus includes: a flow passage roll having a flow passage thereinside and an outer circumferential surface disposed to be in contact with an outer circumferential surface of at least one of the first roll, the second roll, and the third roll; and a circulating unit circulating a fluid through the flow passage. The circulating unit circulates the fluid through the flow passage of the flow passage roll during manufacturing the electrode plate.

An electrode plate manufacturing method of the present disclosure uses an electrode plate manufacturing apparatus including: a first roll and a second roll facing each other at a first position; and a third roll facing the second roll at a second position, and the manufacturing method rotates the first to the third rolls, feeds an electrode material at the first position, and brings a current collecting foil to pass through the second position. The electrode plate manufacturing apparatus includes: a flow passage roll having a flow passage thereinside and an outer circumferential surface disposed to be in contact with an outer circumferential surface of at least one of the first roll, the second roll, and the third roll; and a circulating unit circulating a fluid through the flow passage. The circulating unit circulates the fluid through the flow passage of the flow passage roll during manufacturing the electrode plate.

Provided is a substrate transport roller (2a) capable of ensuring a broad temperature-control region on a substrate, without reducing substrate transport quality. This substrate transport roller (2a) is provided in a film-forming device (1) for executing a film-forming process on the surface of a film substrate (W), transports the film substrate (W) by rotating around a center axis, and is equipped with: a center-section segment (13a) positioned in the center section in the axial direction extending along the center axis, and having a first outer-circumferential surface; end-section segments (12a, 12b) positioned on both sides on the outside in the axial direction of the center-section segment (13a), and each having a second outer-circumferential surface which contacts the substrate (W) and has a larger diameter than that of the first outer-circumferential surface; a center-section-rising-falling-temperature-medium mechanism for changing the temperature of the center-section segment (13a); and a both-end-section-rising-falling-temperature mechanism for changing the temperature of each of the end-section segments (12a, 12b) independently from the center-section segment (13a).

Provided is a substrate transport roller (2a) capable of ensuring a broad temperature-control region on a substrate, without reducing substrate transport quality. This substrate transport roller (2a) is provided in a film-forming device (1) for executing a film-forming process on the surface of a film substrate (W), transports the film substrate (W) by rotating around a center axis, and is equipped with: a center-section segment (13a) positioned in the center section in the axial direction extending along the center axis, and having a first outer-circumferential surface; end-section segments (12a, 12b) positioned on both sides on the outside in the axial direction of the center-section segment (13a), and each having a second outer-circumferential surface which contacts the substrate (W) and has a larger diameter than that of the first outer-circumferential surface; a center-section-rising-falling-temperature-medium mechanism for changing the temperature of the center-section segment (13a); and a both-end-section-rising-falling-temperature mechanism for changing the temperature of each of the end-section segments (12a, 12b) independently from the center-section segment (13a).

Provided are a gravure coating device for preparing a large-width ultrathin metal lithium strip and the preparation method, relating to the technical field of preparation of metal lithium materials. The device comprises: a lithium-melting tank (17), a micro-gravure roller (5), a unwinding device, a substrate back roller (7), a hot pressing device and a winding device; wherein the lower portion of the micro-gravure roller (5) is immersed into the liquid lithium in the lithium-melting tank (17); one side of the micro-gravure roller (5) is provided with a hot scraper (6), and the end portion of the hot scraper (6) is in contact with the surface of the micro-gravure roller (5); the substrate back roller (7) is arranged diagonally above the micro-gravure roller (5); the unwinding device is arranged on one side of the substrate back roller (7); the winding device is arranged above the substrate back roller (7); the hot pressing device is arranged between the substrate back roller (7) and the winding device; after passing through the substrate back roller (7) and the hot pressing device, the substrate on the unwinding device is winded onto the winding device. The device is simple in structure and reasonable in design, effectively improves the coating uniformity, and realizes automatic production of ultrathin metal lithium strips with a thickness of 1-50 m, thereby greatly improving work efficiency and product quality.

Provided are a gravure coating device for preparing a large-width ultrathin metal lithium strip and the preparation method, relating to the technical field of preparation of metal lithium materials. The device comprises: a lithium-melting tank (17), a micro-gravure roller (5), a unwinding device, a substrate back roller (7), a hot pressing device and a winding device; wherein the lower portion of the micro-gravure roller (5) is immersed into the liquid lithium in the lithium-melting tank (17); one side of the micro-gravure roller (5) is provided with a hot scraper (6), and the end portion of the hot scraper (6) is in contact with the surface of the micro-gravure roller (5); the substrate back roller (7) is arranged diagonally above the micro-gravure roller (5); the unwinding device is arranged on one side of the substrate back roller (7); the winding device is arranged above the substrate back roller (7); the hot pressing device is arranged between the substrate back roller (7) and the winding device; after passing through the substrate back roller (7) and the hot pressing device, the substrate on the unwinding device is winded onto the winding device. The device is simple in structure and reasonable in design, effectively improves the coating uniformity, and realizes automatic production of ultrathin metal lithium strips with a thickness of 1-50 m, thereby greatly improving work efficiency and product quality.

Methods and devices for treating a targeted tissue including a skin or a lip and more particularly methods and devices that enhances absorption of treatment media into tissue for cosmetic and therapeutic purposes, where applicators for treating the targeted tissue are configured to apply negative pressure with an aspiration portion having a plurality of apertures distributed over the aspiration portion, and the distal tip of the applicator has a low friction surface such that the distal tip of the applicator is configured to contact the targeted tissue to apply the negative pressure while maintaining a low friction surface against the targeted tissue.

Methods and devices for treating a targeted tissue including a skin or a lip and more particularly methods and devices that enhances absorption of treatment media into tissue for cosmetic and therapeutic purposes, where applicators for treating the targeted tissue are configured to apply negative pressure with an aspiration portion having a plurality of apertures distributed over the aspiration portion, and the distal tip of the applicator has a low friction surface such that the distal tip of the applicator is configured to contact the targeted tissue to apply the negative pressure while maintaining a low friction surface against the targeted tissue.

The present disclosure provides a method for preparing a dry electrode sheet for a secondary battery by allowing a composition for preparing a dry electrode sheet including an electrode active material and a binder to pass through a calendering device, a dry electrode sheet for a secondary battery prepared therefrom and a calendering device used for preparation of a dry electrode sheet for a secondary battery.