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High Precision Slot Die Coating Machine for Lithium-Ion Battery Electrode Sheets - China Suppliers Factory
Equipment Characteristics
The slot die coating machine plays a pivotal role in the manufacturing of lithium batteries by precisely applying thin, uniform coatings of various materials onto conductive foils, typically copper for the anode and aluminum for the cathode. This process is crucial to ensure that the batteries meet stringent design specifications regarding dimensions, weight, and performance characteristics.
Comprising essential components such as the unwinding unit, head unit, oven unit, traction unit, and winding unit, the slot die coater facilitates the smooth operation of the coating process. Each unit contributes to different stages of the process, from material preparation to final winding, ensuring efficiency and consistency throughout.
Versatility in Coating
The slot die coating machine accommodates a wide range of slurry systems used in battery production. This includes oily or aqueous formulations of materials such as ferrous lithium phosphate, lithium cobaltate, ternary compounds, lithium manganate, lithium nickel cobalt manganate, sodium ion active materials, and graphite-based negative electrodes like lithium titanate.
Precision and Performance
Known for its high precision, consistency, and capability for high-speed shoe coating, the slot die coater stands as the preferred choice for lithium battery production. Its ability to uniformly apply coatings at controlled thicknesses enhances the quality and reliability of battery manufacturing processes.
In conclusion
The slot die coating machine not only supports the current demands of lithium battery manufacturing but also enables advancements in battery technology by facilitating the development of next-generation materials and designs. Its role in ensuring uniformity and reliability underscores its importance.
Slot Die Battery Electrode Coating Machine For Lithium Cell Production-Desktop Type
Slot Die Battery Electrode Coating Machine For Lithium Cell Production--Integrated Type
Specification of Equipment
| Product |
|
|
|---|---|---|
| Model | WS-（YTSTBJ） | WS-（ZMSTBJ） |
| Equipment dimension | L1800*W1200*H1550(mm) | L1800*W1200*H1550(mm) |
| Equipment weight | 1T | 1T |
| Power supply | AC380V， Main power switch 40A | AC380V， Main power switch 40A |
| Compressed air source | Dry gas ≥ 0.7MPA, 20L/min. | Dry gas ≥ 0.7MPA, 20L/min. |
| Slurry solid content (wt%) | 16.35-75% | 16.35-75% |
| Slurry specific gravity (g/cm3) | / | / |
| Viscosity (mPa.s) | Positive electrode 4000-1800 MPa.s Negative electrode 3000-8000 MPa.s |
Positive electrode 4000-1800 MPa.s Negative electrode 3000-8000 MPa.s |
| Oven temperature range | RT to 150°C | RT to 150°C |
| Oven temperature error | Temperature deviation ≤ ± 3°C | Temperature deviation ≤ ± 3°C |
| Single-sided areal density error | ≤±1.5um | ≤±1.5um |
| Double-sided areal density error | ≤±2.5um | ≤±2.5um |
Frequently Asked Questions
What is the primary function of a slot die coating machine in battery production?
The slot die coating machine is designed to precisely apply thin, uniform coatings of active battery materials onto conductive foils, such as copper for the anode and aluminum for the cathode. This ensures consistent dimensions, weight, and optimal battery performance.
What kinds of slurries can be used with this equipment?
The machine supports a wide variety of aqueous or oily slurries, including ferrous lithium phosphate, lithium cobaltate, ternary compounds, lithium manganate, sodium ion active materials, and graphite-based negative electrodes.
What is the precision level of the coating process?
This equipment delivers exceptional precision, keeping the single-sided areal density error within ≤±1.5um and the double-sided areal density error within ≤±2.5um.
What are the temperature specifications for the drying oven?
The oven operates from room temperature (RT) up to 150°C, with a highly stable temperature profile that maintains a deviation error of ≤ ±3°C.
What are the differences in utility requirements between the models?
Both the Desktop Type (WS-YTSTBJ) and Integrated Type (WS-ZMSTBJ) share similar utility specifications, requiring an AC380V power supply (40A main switch) and a compressed air source of dry gas ≥ 0.7MPA at a flow rate of 20L/min.