Coating device, coating method and coating film forming system
A technology of a coating device and a coating method, which is applied in the direction of surface coating liquid device, coating, spraying manufacturing, etc., which can solve the problem of high cost of coating nozzles, rising manufacturing costs, and the upper surface of the coating end of the coating film. Issues such as offset from the lower surface
Active Publication Date: 2016-10-12
DAINIPPON SCREEN MTG CO LTD
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Problems solved by technology
However, coating nozzles produced with such high processing precision are expensive, and the installation of two coating nozzles is a major cause of the increase in the manufacturing cost of the coating device.
In addition, when two coating nozzles are mounted, depending on the number of coating nozzles, it is necessary to provide two sets of coating liquid supply mechanisms such as pumps that supply the coating liquid to the coating nozzles. The manufacturing cost of the device has risen further
[0007] In addition, in the case where two coating nozzles are provided on the coating device, when the installation positions of the two coating nozzles are slightly shifted, it may also happen that the coating end of the coating film is between the upper surface and the lower surface of the substrate. Problems such as surface offset
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[0062] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0063] figure 1 It is a figure which shows the whole structure of the coating film formation system 1 which incorporates the coating apparatus of this invention. and, in figure 1 In each of the following figures, an XYZ rectangular coordinate system is appropriately added to clarify their directional relationship, the Z-axis direction is taken as the vertical direction, and the XY plane is taken as the horizontal plane. In addition, in figure 1 In each of the following drawings, the size or number of each component is enlarged or simplified as necessary for easy understanding.
[0064] This coating film forming system 1 is an apparatus for coating a porous substrate including an active material as an electrode material while continuously conveying a long porous substrate in a roll-to-roll (Roll-to-Roll) system. coating solution, and drying the coating solu...
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The invention provides a coating device for applying a coating liquid on upper and lower surfaces of a substrate by using one coating nozzle, a coating method and a coating film forming system with the coating device assembled. A continuous moving multi-hole substrate (5) is a metal strip multi-hole foil with a plurality of holes (5a) passing through. A coating nozzle (20) for ejecting a coating liquid for an electrode material is arranged below the multi-hole substrate (5), and a smooth board (5) is arranged above the multi-hole substrate (5). The coating liquid is ejected from the coating nozzle (20) to a lower surface of the multi-hole substrate (5), and since a part of the coating liquid is permeated to the upper surface of the multi-hole substrate (5) from the plurality of holes (5a), the upper and lower surfaces of the multi-hole substrate (5) are coated with the coating liquid. Therefore, only one coating nozzle (20) is used for coating the upper and lower surfaces of the multi-hole substrate (5) with the coating liquid.
Description
technical field [0001] The present invention relates to a coating device for coating a coating liquid such as a chemical battery material on a porous substrate, a coating method, and a coating film forming system incorporating the coating device. Background technique [0002] Conventionally, when manufacturing chemical batteries such as lithium ion batteries, a substrate such as metal foil is conveyed in a roll-to-roll system, and a coating solution of an electrode material is sprayed onto the upper surface of the substrate to form a coating film. In addition, in order to make the electrode into a multilayer structure, a double-sided coating device is known, and the double-sided coating device usually forms a coating film on both the upper surface and the lower surface of the substrate, and applies it to the substrate. The coating liquid of the electrode material is sprayed on both sides to form a coating film. As such a double-sided coating device, there is a coating devi...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B05C5/02B05C9/14B05C13/02H01M4/04H01M4/139
CPCH01M4/0419H01M4/139B05C5/0254B05C9/14B05C13/02Y02E60/10
Inventor 安谷佳浩锦内荣史
Owner DAINIPPON SCREEN MTG CO LTD