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China Slot Die Coating Machine for Battery Electrode Sheets - Leading Suppliers and Factory for Cell Preparation
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. This versatility enables manufacturers to adapt to various battery chemistries and formulations, supporting flexibility and innovation in battery design.
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. This precision is critical in achieving uniform electrode coatings, which directly impact battery performance, longevity, and safety.
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 in the pursuit of efficient energy storage solutions.
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 degrees Celsius | Temperature deviation ≤ ± 3 degrees Celsius |
| Single-sided areal density error | ≤±1.5um | ≤±1.5um |
| Double-sided areal density error | ≤±2.5um | ≤±2.5um |
Frequently Asked Questions (FAQ)
The slot die coating machine precisely applies thin, uniform coatings of active materials onto conductive foils (copper for the anode and aluminum for the cathode) to ensure batteries meet strict design and performance specifications.
It accommodates a wide range of oily or aqueous formulations, including ferrous lithium phosphate, lithium cobaltate, ternary compounds, lithium manganate, sodium ion active materials, and graphite-based negative electrodes.
The machine consists of five essential units: the unwinding unit, head unit, oven unit, traction unit, and winding unit, working together to facilitate a smooth, continuous coating process.
The oven operates from Room Temperature (RT) up to 150°C, with a temperature deviation error controlled within ≤ ±3 degrees Celsius.
The single-sided areal density error is ≤ ±1.5um, and the double-sided areal density error is ≤ ±2.5um, ensuring high-precision electrode consistency.