Intermittent coating device
A coating device and coating technology, which is applied to the surface coating liquid device, coating, etc., can solve the problems of coating thickness influence, difficulty in coating liquid coating, and difficulty in improving productivity
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[0043] figure 1 as well as figure 2 The first embodiment of the intermittent coating device according to the present invention is shown in , which is a device for intermittently coating a coating agent on a substrate 1 constituting a negative electrode plate of a battery such as a lithium ion secondary battery. . Specifically, the intermittent coating device continuously arranges battery-use coatings 2 having a thickness of about 80 μm at predetermined intervals on a sheet-shaped current collector 2 composed of a copper sheet having a thickness of approximately 10 μm at a predetermined speed. When the substrate 1 made of the active material layer 3 is conveyed, a coating agent consisting of a ceramic paste is intermittently applied to the surface of the substrate 1 and dried to form a film having a film thickness of 10 μm or less, for example, The thin porous protective film 4 covering the surface of the battery active material layer 3 has a thickness of 2 μm±1 μm.
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