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CN-224204104-U - Coating gasket, coating die head and coating machine for improving mutual solubility of ceramics

CN224204104UCN 224204104 UCN224204104 UCN 224204104UCN-224204104-U

Abstract

The utility model discloses a coating gasket for improving ceramic mutual solubility, which comprises a gasket body, wherein a plurality of ceramic runner plates are arranged on the gasket body, main material slurry runners are formed between two sides of each ceramic runner plate and the gasket body, ceramic runners are arranged in each ceramic runner plate, a first skiving and a second skiving are arranged on each ceramic runner plate and positioned on two sides of the main material slurry runner, the second skiving is positioned on one side of the first skiving, and an island part is arranged between a ceramic outlet of each ceramic runner and the second skiving to separate the ceramic outlet from the second skiving. The utility model performs twice thinning treatment at the outlet of the main material slurry of the coated gasket, improves the uniformity of edge thinning after the main material slurry is coated, thereby relieving the problem of mutual dissolution of ceramics and the main material slurry, and realizes the height difference design and island design of the ceramic outlet of the coated gasket and the second thinning, thereby further improving the mutual dissolution of ceramics overflowed into the main material slurry when the ceramics slurry and the main material slurry are coated and contacted.

Inventors

  • TAO XING
  • TAN ZHIXIN
  • LV TAO
  • ZHAO JIANHU

Assignees

  • 合肥国轩电池技术有限公司

Dates

Publication Date
20260505
Application Date
20250528

Claims (10)

  1. 1. The utility model provides a improve coating gasket of ceramic intersolubility, includes gasket body (1), its characterized in that, be equipped with a plurality of ceramic runner plates (11) on gasket body (1), ceramic runner plates (11) both sides and gasket body (1) form main material thick liquids runner (4), set up ceramic runner (5) in ceramic runner plates (11); The ceramic flow channel plate (11) is provided with a first skiving (6) and a second skiving (7) at two sides of the main material slurry flow channel (4), the second skiving (7) is positioned at one side of the first skiving (6), and an island part (10) is arranged between a ceramic outlet (9) of the ceramic flow channel (5) and the second skiving (7) to separate the ceramic outlet from the second skiving.
  2. 2. A coated gasket for improving miscibility of ceramics according to claim 1, wherein the second skiving (7) is mounted on the upper surface (2) of the gasket body (1).
  3. 3. A coated gasket for improving miscibility of ceramics according to claim 1, wherein the ceramic outlet (9) is mounted on the lower surface (3) of the gasket body (1).
  4. 4. A coated gasket for improving miscibility of ceramics according to claim 1, wherein the height of the ceramic outlet (9) near the second skiving (7) is smaller than the height of the ceramic outlet far from the second skiving (7).
  5. 5. A coated gasket for improved mutual ceramic solubility according to claim 1, characterized in that the first skiving (6) is in the form of right-angle notches.
  6. 6. A coated gasket for improving miscibility of ceramics according to claim 1, wherein said second skiving (7) is in the form of triangular notches.
  7. 7. A coated gasket for improving miscibility of ceramics according to claim 6, wherein the thickness of the second skiving (7) is less than the thickness of the gasket body (1).
  8. 8. A coated gasket for improving miscibility of ceramics according to claim 1, wherein the ceramic runner (5) further comprises an inner ceramic runner (8), and the inner ceramic runner (8) is communicated with the ceramic outlet (9).
  9. 9. A coating die comprising a coated gasket of any one of claims 1-8 that improves miscibility of ceramics.
  10. 10. A coater comprising the coating die of claim 9.

Description

Coating gasket, coating die head and coating machine for improving mutual solubility of ceramics Technical Field The utility model relates to the technical field of lithium battery manufacturing, in particular to a coating gasket, a coating die head and a coating machine for improving ceramic mutual solubility. Background With the rapid development of lithium batteries, the requirements on the quality and the productivity of lithium battery products are higher and higher. In order to solve the problem of short circuit caused by cutting burrs or beads at the lug ends of the battery, a positive electrode ceramic coating process is often adopted in the coating process of the lithium battery, but mutual dissolution phenomenon can occur due to performance differences such as ceramic slurry viscosity and main material slurry viscosity. At present, the coating technology usually adopts double-sided coating, however, when the thickness difference occurs in a material area and a blank area after the first surface is coated, the problem that the state of the junction between the ceramic slurry and the main material slurry is poor after the ceramic slurry and the main material slurry are mutually fused and dried can be caused. Conventional coated gaskets do not ameliorate this problem. Therefore, there is a need to develop a coated gasket that improves the ceramic miscibility problem. Disclosure of utility model The technical problem to be solved by the utility model is to solve the problem that the interface between the ceramic slurry and the main material slurry is poor due to mutual fusion of the ceramic slurry and the main material slurry in the process of coating the ceramic coating of the lithium battery. In order to solve the technical problems, the utility model provides the following technical scheme: The coating gasket for improving the mutual dissolution of ceramics comprises a gasket body, wherein a plurality of ceramic runner plates are arranged on the gasket body, two sides of each ceramic runner plate and the gasket body form a main material slurry runner, and ceramic runners are arranged in the ceramic runner plates; the ceramic flow channel plate is provided with a first skiving and a second skiving at two sides of the main material slurry flow channel, the second skiving is positioned at one side of the first skiving, and an island part is arranged between a ceramic outlet of the ceramic flow channel and the second skiving to separate the ceramic outlet from the second skiving. The application performs thinning treatment at least twice at the outlet of the main material slurry of the coated gasket, improves the uniformity of edge thinning after the main material slurry is coated, and thus relieves the mutual dissolution problem of ceramics and the main material slurry. As a further proposal of the utility model, the second skiving is arranged on the upper surface of the gasket body. As a further proposal of the utility model, the ceramic outlet is arranged on the lower surface of the gasket body. According to the application, the height difference design and the island design are carried out by the ceramic outlet of the coating gasket and the second skiving, the second skiving is arranged on the upper surface of the gasket, and the ceramic outlet is arranged on the lower surface of the gasket, so that the ceramic slurry is arranged on the lower layer when the ceramic slurry and the main material slurry are in coating contact, and the mutual dissolution of the ceramic overflowed into the main material slurry is improved. As a further proposal of the utility model, the height of the ceramic outlet close to the second thinning position is smaller than the height of the ceramic outlet far from the second thinning position. According to the application, the height of the ceramic outlet of the coating gasket is designed differently, the height of the ceramic outlet close to the second thinning position is smaller, and the height of the ceramic outlet far from the second thinning position is larger, so that thinning of a ceramic layer is realized, the area of a hedging area and the hedging force of main material slurry and the ceramic layer are reduced, and the phenomenon of ceramic mutual dissolution is improved. As a further scheme of the utility model, the first thinning is in a right-angle notch shape. As a further scheme of the utility model, the second thinning is in a triangular notch shape. As a further proposal of the utility model, the thickness of the second channel of thinning is smaller than that of the gasket body. As a further scheme of the utility model, the ceramic runner also comprises an inner ceramic runner, and the inner ceramic runner is communicated with the ceramic outlet. The utility model also discloses a coating die head which comprises the coating gasket for improving the mutual solubility of ceramics. The utility model also discloses a coating machine which comprises the coating