Product Categories
High precision transfer gap coating machine
Equipment Model
Function Introduction
Suitable for coating processes of slurry systems such as oil-based or water-based lithium iron phosphate, oil-based lithium cobalt oxide, ternary, lithium manganese oxide, oil-based or water-based negative electrode carbon graphite, lithium titanate, etc;
Workflow: The polarizer substrate is released from the unwinding device, and after correction and rolling, it enters the coating head for coating. The coating head applies according to predetermined coating parameters. When coating on the second side, the coating head can track the overlapping or misalignment coating on the first side. The coated wet electrode sheet is sent to the baking oven. The drying temperature can be continuously adjusted based on the coating amount and coating speed. The dried polarizer is wound up by a winding mechanism.
Equipment Performance
1. Surface treatment of roller: Oxidation of metal aluminum roller surface
2. Coating roller (steel roller): surface coated with hard chromium, diameter ￠ 120mm
3. Back roller (rubber roller): diameter ￠ 120mm, surface coated with EPDM rubber, roller groove grinding
4. Adjustment of scraper gap height: manual adjustment, accuracy: 0.001mm
5. Tension control system: automatic control of constant tension, tension range 0-200N
6. Correction method: Automatic EPC control, travel 80mm
7. Each section of exhaust air volume control: independently controlled through mechanical valves
8. Temperature inside the drying oven: Designed from room temperature to Max120 ℃
Parameters
| Project | Technical Parameter |
Suitable for the system | Coating process for positive and negative electrode sheets of lithium iron phosphate, lithium cobalt oxide, lithium manganese oxide and other battery systems |
| Operating equipment thickness | Aluminum foil (A1): 11-30um Copper foil (Cu): 8-30um |
| Roller surface design width | 500mm |
| Effective coating width | 200-450mm |
| Mechanical operating speed of equipment | 10m/min (Depending on the drying situation) |
| Suitable for coating speed | 0.5-5m/min |
| Suitable for slurry viscosity | 2500-9000Cp |
| Single side coating dry thickness range | 50-200um |
| Solvent characteristics | Oil solvent NMP Water based solvent H2O/NMP |
Suitable content degree | Positive electrode S.C 55%±10% |
Negative electrode S.C 50%±10% (PVDF system) S.C 50%±5% (SBR system) | |
| Coating method | Continuous transfer coating |
| Base material running direction | Forward coating, empty foil transportation in both forward and reverse directions of the substrate |
| Power requirement | Three phase 380V 50Hz |
| Total power of equipment | 65KW |
Air compression | 0.06MPa |
| External dimensions | Length 16000 * Width 1450 * Height 2100 |
