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Double-sided coating apparatus

A double-sided coating and coating technology, which can be used in the device, coating, electrode current collector coating and other directions of coating liquid on the surface, which can solve the problem of the deterioration of the position accuracy of the substrate

Inactive Publication Date: 2014-06-11
KK TOSHIBA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, since the base material is not supported by the roller, the position accuracy of the base material deteriorates, and a runout occurs on the profile in the width direction

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0019] Figure 1A is an explanatory diagram schematically showing the double-sided coating device 10 according to the first embodiment, Figure 1B It is an explanatory diagram showing the width direction of a substrate to be coated by a double-sided coating device, figure 2 It is a perspective view schematically showing the coating roller 50 incorporated in the double-sided coating device 10 . exist Figure 1A Among them, S represents a sheet-like substrate such as aluminum foil, and D represents a coating liquid such as an electrolytic solution. exist Figure 1B Among them, the substrate S is provided with a coated area Sa where the coating liquid D is applied and a non-coated area Sb where the coating liquid D is not applied, and the coated area Sa and the non-coated area Sb are alternately set on the substrate S. In the width direction W (the direction perpendicular to the sending direction F) of the

[0020] The double-sided coating device 10 includes a delivery mechan...

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PUM

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Abstract

According to one embodiment, a double-sided coating apparatus includes a transport mechanism configured to convey the substrate, a first coating head disposed on one surface side of the substrate and configured to apply the coating liquid to the coated and uncoated regions, a second coating head disposed on the other surface side of the substrate and configured to apply the coating liquid to the coated and uncoated regions, and a coating roll disposed on the one surface side of the substrate and near a position where the coating roll is opposed to the second coating head with the substrate therebetween and includes first rollers disposed on axially opposite portions, at least one second roller disposed between the first rollers, and a rotation mechanism configured to rotate the first and second rollers such that the peripheral speed of the first rollers is higher than that of the second roller.

Description

[0001] References to related applications [0002] This application is based on and claims the benefit of priority from prior Japanese Patent Application No. 2011-28659 filed on February 14, 2011, the entire contents of which are incorporated herein by reference. technical field [0003] The present invention relates to a double-sided coating device used in a process of simultaneously coating an electrolytic solution on both sides of a metal foil, and the like. Background technique [0004] For example, when manufacturing a lithium (lithium) secondary battery, sequential coating is performed in which a coating liquid such as an electrode liquid is applied to one side of a base material such as aluminum foil using a coating head. In sequential coating, when conveying the base material, the surface opposite to the surface to be coated is held by a back-up roll, and only one side is coated temporarily, and after drying, the coating on the opposite side is performed. cloth. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05C9/04B05C13/00H01M50/571
CPCY02E60/12B05C5/0254B05C11/025H01M4/0404B05C9/04H01M4/139Y02E60/122Y02E60/10H01M50/20H01M50/571
Inventor 中畑政臣植松育生森岛秀明
Owner KK TOSHIBA