A lithium battery foil substrate coating device
A technology for coating substrates and lithium batteries, which is applied to devices and coatings that apply liquid to the surface, which can solve the problems of inability to apply a thinner slurry layer to foil substrates, and the inability of the slurry to adhere uniformly.
Active Publication Date: 2022-06-28
SBT ULTRASONIC TECH CO LTD
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Problems solved by technology
[0004] The purpose of the present invention is to provide a lithium battery foil substrate coating device to solve the problem that the slurry cannot be evenly attached to the foil substrate due to the traditional mechanical extrusion scraper scraping the thinner slurry in the related art. Therefore, it is impossible to apply a thinner thickness slurry layer to the foil substrate
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[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0028] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must hav...
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The invention relates to the technical field of lithium battery manufacturing, and specifically discloses a coating device for lithium battery foil substrates. The coating device for lithium battery foil substrates includes a slurry box, a roller shaft and a coating scraper assembly. The slurry box is provided with It has an open slurry tank, and slurry is set in the slurry tank; the roller shaft drives the foil substrate to move and makes the surface of the foil substrate covered with slurry; the coating scraper assembly includes a scraper, an ultrasonic vibrator, and the scraper is equipped with a second One blade, the axis of the scraper is parallel to the axis of the roller shaft, and the distance between the first blade and the roller shaft is adjustable, and the ultrasonic vibrator drives the scraper to vibrate along the axis of the scraper. The device solves the problem that the slurry cannot be evenly attached to the foil base material when the traditional mechanical extrusion scraper scrapes the thinner slurry, so the thinner slurry layer cannot be applied to the foil base material.
Description
technical field [0001] The invention relates to the technical field of lithium battery manufacturing, and in particular, to a coating device for a lithium battery foil substrate. Background technique [0002] At present, the foil substrate of the lithium battery pole piece directly contacts the slurry in the slurry tank through the roller shaft, and the excess slurry adheres to the foil substrate. The gap between the work of the roller shaft and the mechanical scraper determines the thickness of the paste attached to the foil substrate. [0003] As the cruising range of new energy vehicles increases, the requirements for the energy density of batteries will also increase. Under the condition that the volume of the lithium battery remains the same, by reducing the thickness of the paste attached to the foil substrate, increasing the number of pole pieces, and improving the energy density, the paste cannot be uniform when the traditional mechanical extrusion scraper scrapes t...
Claims
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IPC IPC(8): B05C3/15B05C11/02B05C11/04B05C11/10
CPCB05C3/15B05C11/025B05C11/048B05C11/1039
Inventor 周宏建姜大为
Owner SBT ULTRASONIC TECH CO LTD