WUHAN GRACE NEW ENERGY CO., LTD.
WUHAN GRACE NEW ENERGY CO., LTD.
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Features
* Continuous, intermittent coating can be achieved;
* Slit extrusion coating method, high coating accuracy, good coating consistency;
* Substrate tension control, walking stability, equipped with deviation correction device;
* Hot air oven, upper and lower double-sided blowing, drying effect is high quality;
* PLC control, touch screen operation, easy to use;
Equipment Parameters
| No. | Item | Technical parameters | Remarks |
| 1 | Suitable for the system | Coating process for positive and negative electrode sheets of ternary, lithium iron phosphate, lithium cobalt oxide, lithium manganese oxide, graphite, silicon carbon and other system batteries | |
| 2 | Coating method | Continuous coating, intermittent coating | Slot die coating method |
| 3 | Number of oven sections | 1 section of 0.8-meter oven | |
| 4 | Coating speed | 0~0.5 meters/min | Depending on the drying situation |
| 5 | Operating substrate thickness | Aluminum foil (Al): 8-30um | |
| 6 | Roller surface design width | 300mm | |
| 7 | Ensure coating width | <240mm | |
| 8 | Main roller | Φ150mm | |
| 9 | Coating accuracy | ±1.5um | |
| 10 | Suitable for slurry viscosity | 2000~12000(mPas) | |
| 11 | Single side coating dry thickness range | 10-250μm | |
| 12 | Solvent characteristics | NMP(s.g=1.033,b.p=204℃) | |
| H₂O/NMP(s.g=1.000,b.p=100℃) | |||
| 13 | Suitable for solid content range | 20~85% | |
| 14 | Coating size accuracy (mm) | L≤±1,W≤±0.4 | L: Length direction |
| 15 | Positive and negative positioning precision (mm) | L≤±1,W≤±0.4 |
Unwinding
| No | Item | Technical parameters | Remarks |
| 1 | Roller installation structure | Steel frame firmly installed | |
| 2 | Roller surface treatment | Surface oxidation of metal aluminum roller | |
| 3 | Tension control system | Automatic control of constant tension, tension range 0~50N, servo motor control | |
| 4 | Correction method | Automatic EPC control, stroke 50mm | |
| 5 | Roll up material method | The material roll is fixed with a 3-inch inflatable shaft | |
| Unwinding single inflation shaft | |||
| 6 | Maximum unwinding diameter | Ф250mm | |
| 7 | Maximum load-bearing capacity of inflatable shaft | 80Kg | |
| 8 | Number of inflation shafts for unwinding | 1 item | |
| 9 | Main drive motor | servo motor | |
| 10 | Roller surface treatment | Surface oxidation of metal aluminum roller | |
| 11 | Main roller (steel roller) | Surface plated with hard chromium | |
| 12 | Single head position | Installation and operation before drying |
Oven
| No | item | Technical parameters | Remarks |
| 1 | Oven structure | Double layer independent heating, arranged vertically | |
| 2 | Oven length | 0.8 meters per section | |
| 3 | texture of material | SUS304 stainless steel | |
| 4 | temperature control | Divided into normal working temperature control, over temperature monitoring and alarm protection control, and cutting off the main heating power supply; Each section is completely independently controlled | |
| 5 | heating method | Electric heating, hot air circulation structure | |
| 6 | Heating power of single section oven | 6KW | |
| 7 | Temperature inside the drying oven | Design Max150 ℃, with a temperature difference of ≤± 2.5 ℃ within a single oven section | |
| 8 | Wind blowing method | Up and down blowing, with shared heating element in the upper and lower air chambers | |
| 9 | Wind nozzle structure | The wind nozzle slot is slotted with a dedicated mold | |
| 10 | Fan control | Contactor control | |
| 11 | Heating control | Solid state relay | |
| 12 | Fan material | SUS304 stainless steel | |
| 13 | Solvent recovery system | Optional |