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CN-224221807-U - Solid electrolyte coating system for preventing non-woven fabrics from wrinkling and foaming

CN224221807UCN 224221807 UCN224221807 UCN 224221807UCN-224221807-U

Abstract

The utility model provides a solid electrolyte coating system for preventing non-woven fabrics from wrinkling and foaming, which comprises a substrate roll, a gravure printing machine, a non-woven fabric roll, a second substrate roll, a press roll, a film tearing roll, an electrolyte coating machine, a cleaning tank, a second substrate rolling device and a solid electrolyte film rolling device, wherein solid electrolyte slurry is coated on a substrate output by the substrate roll through the gravure printing machine to form a substrate with slurry, the second substrate output by the second substrate roll, the non-woven fabrics output by the non-woven fabric roll and the substrate with slurry are sequentially arranged from top to bottom, and the three substrates are pressed and attached through the press roll. According to the utility model, the non-woven fabric and the base material are bonded by paving a layer of solid electrolyte slurry, and the pressing roller is used for pressing, so that the solid electrolyte slurry can be prevented from overflowing and polluting the pressing roller, the pressing roller can discharge possible residual air, the non-woven fabric can be ensured to be completely attached to the base material, and the problems of wrinkling, foaming caused by air residues and the like caused by tightening are avoided.

Inventors

  • SUN RUI

Assignees

  • 上海屹锂新能源科技有限公司

Dates

Publication Date
20260512
Application Date
20260205

Claims (6)

  1. 1. The solid electrolyte coating system for preventing the non-woven fabric from wrinkling and foaming is characterized by comprising a substrate roll (1), a gravure printing machine (2), a non-woven fabric roll (3), a second substrate roll (4), a press roll (5), a film tearing roll (6), an electrolyte coating machine (7), a cleaning tank (8), a second substrate rolling device (9) and a solid electrolyte film rolling device (10); The output of substrate book (1) is connected with the input of intaglio press (2), and solid electrolyte thick liquids pass through intaglio press (2) coating and are formed with the area thick liquids substrate on the substrate of substrate book (1) output, the second substrate of second substrate book (4) output, non-woven fabrics of non-woven fabrics book (3) output and take thick liquids substrate three from top to bottom set gradually, and the three forms the three bonding piece through compression roller (5) pressurization laminating, the output of compression roller (5) is connected with the input of dyestripping roller (6), the output of dyestripping roller (6) is connected with the input of electrolyte coating machine (7), washing tank (8) both respectively, is located the top the second substrate is separated with non-woven fabrics through dyestripping roller (6), the second substrate is carried to washing tank (8), and the bonding piece that substrate and non-woven fabrics laminating formed is carried to the input of electrolyte coating machine (7), the output of electrolyte coating machine (7) is connected with the input of solid electrolyte membrane coiling mechanism (10), the output of electrolyte coating machine (8) is connected with the input of second washing tank (9).
  2. 2. A solid electrolyte coating system for preventing wrinkling and foaming of non-woven fabric according to claim 1, wherein the substrate of the substrate roll (1) comprises release paper and PET film, and the solid electrolyte slurry is coated on the upper surface of the substrate by a gravure printing machine (2).
  3. 3. The solid electrolyte coating system for preventing wrinkling and foaming of non-woven fabric according to claim 2, wherein the second substrate outputted from the second substrate roll (4), the non-woven fabric outputted from the non-woven fabric roll (3) and the movement path of the substrate with slurry are provided with deviation correcting devices.
  4. 4. A solid electrolyte coating system for preventing wrinkling and foaming of a nonwoven fabric according to claim 3, wherein the thickness of the solid electrolyte paste applied by said gravure printing machine (2) is not more than 5um, the application range of the solid electrolyte paste is matched to the nonwoven fabric, and the second substrate is matched to the width of the substrate.
  5. 5. The solid electrolyte coating system for preventing wrinkling and foaming of a non-woven fabric according to claim 1, wherein the electrolyte coating machine (7) comprises a coating device and a drying device which are arranged in sequence, wherein the solid electrolyte slurry is coated on the non-woven fabric through the coating device, and the solid electrolyte slurry and the non-woven fabric are dried through the drying device to form a solid electrolyte membrane.
  6. 6. The solid electrolyte coating system for preventing wrinkling and foaming of non-woven fabric according to claim 1, wherein a back roller and an ultrasonic cleaning device are arranged in the cleaning tank (8), and the side of the second substrate far away from the non-woven fabric is wound on the back roller.

Description

Solid electrolyte coating system for preventing non-woven fabrics from wrinkling and foaming Technical Field The utility model relates to the technical field of solid-state batteries, in particular to a solid-state electrolyte coating system for preventing non-woven fabrics from wrinkling and foaming. Background The electrolyte membrane is used as a core energy transmission channel of the battery, and the performance of the electrolyte membrane directly determines the energy density, the safety, the cycle life and the working temperature range of the battery, so that the electrolyte membrane is a key core material for restricting the iteration of the solid-state battery technology. The prior Chinese patent with publication number CN109935893A discloses a solid electrolyte membrane which is formed by compounding a strip-shaped non-woven fabric and a polymer solid electrolyte. The surface of the non-woven fabric is coated with a polymer solid electrolyte. However, in actual production, it is found that before the non-woven fabric enters the coating device, the non-woven fabric is extremely thin due to longer transmission distance, and is easy to fold due to tightening, and after the non-woven fabric is attached to a base material, foaming is easy to occur due to air residues, so that the non-woven fabric cannot be kept in a flat state after entering the coating device, uneven coating of solid electrolyte slurry is caused, and the yield of the produced electrolyte membrane is reduced. Accordingly, it is desirable to provide a solid electrolyte coating system that prevents the wrinkling and foaming of a nonwoven fabric, and that can solve the problems of the wrinkling and foaming of the nonwoven fabric, thereby improving the production efficiency of an electrolyte membrane. Disclosure of Invention In view of the drawbacks of the prior art, an object of the present utility model is to provide a solid electrolyte coating system that prevents wrinkling and foaming of nonwoven fabrics. The utility model provides a solid electrolyte coating system for preventing non-woven fabrics from wrinkling and foaming, which comprises a substrate roll, a gravure printing machine, a non-woven fabric roll, a second substrate roll, a press roll, a film tearing roll, an electrolyte coating machine, a cleaning tank, a second substrate rolling device and a solid electrolyte film rolling device, wherein the substrate roll is arranged on the substrate roll; The output of substrate book is connected with the input of gravure press, and solid electrolyte thick liquids pass through gravure press coating and are formed with the area thick liquids substrate on the substrate of substrate book output, the second substrate of second substrate book output, the non-woven fabrics of non-woven fabrics book output and take thick liquids substrate three from top to bottom to set gradually, and the three forms three-layer bonding spare through the compression roller pressurization laminating, the output of compression roller is connected with the input of dyestripping roller, the output of dyestripping roller is connected with the input of electrolyte coating machine, the two respectively of washing tank, be located the top the second substrate separates with the non-woven fabrics through the dyestripping roller, the second substrate is carried to the washing tank, and the bonding spare that substrate and non-woven fabrics laminating formed is carried to the input of electrolyte coating machine, the output of electrolyte coating machine is connected with the input of solid electrolyte membrane coiling mechanism, the output of washing tank is connected with the input of second substrate coiling mechanism. Preferably, the substrate of the substrate roll comprises release paper and PET film, and the solid electrolyte slurry is coated on the upper surface of the substrate through a gravure printing machine. Preferably, deviation correcting devices are arranged on the moving paths of the second base material output by the second base material roll, the non-woven fabric output by the non-woven fabric roll and the base material with slurry. Preferably, the thickness of the solid electrolyte slurry coated by the gravure printing machine is not more than 5um, the coating range of the solid electrolyte slurry is matched with the non-woven fabric, and the second substrate is matched with the width of the substrate. Preferably, the electrolyte coating machine comprises a coating device and a drying device which are sequentially arranged, wherein the solid electrolyte slurry is coated on the non-woven fabric through the coating device, and the solid electrolyte slurry and the non-woven fabric are dried through the drying device to form a solid electrolyte membrane. Preferably, a back roller and an ultrasonic cleaning device are arranged in the cleaning tank, and one side, far away from the non-woven fabric, of the second base material is wound on the back roller.