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Coating apparatus and coating-film forming system

A coating device and a technology for coating film, which are applied to the device for coating liquid on the surface, coating, electrode rolling/calendering and other directions, which can solve the problem of the inability of the coating film to be in the same position.

Active Publication Date: 2013-06-19
DAINIPPON SCREEN MTG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, there is a problem that when the reference position of the coating film formed on one main surface is not clear, the coating positions of the coating films formed on both main surfaces cannot be aligned.

Method used

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  • Coating apparatus and coating-film forming system
  • Coating apparatus and coating-film forming system
  • Coating apparatus and coating-film forming system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0027]

[0028] figure 1 It is a figure which shows the whole structure of the coating film forming system 1 which incorporates the coating apparatus of this invention. In addition, in figure 1 In each of the following figures, in order to clarify the direction relationship, the XYZ rectangular coordinate system is marked, 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 figures, the size and number of each part are enlarged or simplified as necessary for easy understanding.

[0029] The coating film forming system 1 forms a coating film of an active material on a base material 5 and dries the formed coating film, thereby manufacturing an electrode of a lithium ion secondary battery. Such as figure 1 As shown, the coating film forming system 1 ma...

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Abstract

A coating unit applies, in a state of having a first coating-film of active material already formed, a coating liquid of active material onto a second main face of a base material. The coating unit is provided mainly with a nozzle, a position detection unit, and a drive unit. The nozzle is arranged at a position opposed to a backup roller. The position detection unit is a sensor composed of a so called two-dimensional laser displacement meter. The position detection unit is arranged at a detection position at the upstream side of a discharging position of the nozzle, on a conveying path of the base material along the longitudinal direction thereof. The drive unit adjusts the position of a discharging port with respect to the backup roller, by moving the nozzle in the front-rear, left-right, and up-down directions.

Description

technical field [0001] The present invention relates to a coating device for forming a coating film on a base material by coating a coating solution of an active material used as an electrode material of a chemical battery on the base material and a coating film forming system incorporating the coating device A coating film is formed. Background technique [0002] Conventionally, there is known a method of manufacturing a chemical battery such as a lithium ion secondary battery by coating a metal foil serving as a base material with a relatively high-viscosity electrode material (for example, Patent Document 1). [0003] Here, in the production method of Patent Document 1, the coating film is formed on the metal foil by the following method. First, the strip-shaped metal foil is conveyed from the unwinding unit by a plurality of rollers to directly below the slit nozzle for discharging the electrode material. [0004] Next, the metal foil in the width direction (direction ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/139B05C5/02H01M4/04
CPCH01M4/0435B05C5/0254B05C11/1015Y02E60/10B05C5/02H01M4/00H01M4/04H01M4/139
Inventor 井上正雄
Owner DAINIPPON SCREEN MTG CO LTD
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