Vacuum drying ovens for battery cell production
Fast process, short heating time, optimal drying results
Vacuum drying technology is indispensable in the production of lithium-ion batteries. We design customer-specific vacuum dryers that can be integrated into production lines and research facilities as required. Our vacuum dryers work extremely efficiently and with optimized processes.
For battery manufacturing processes, where high product quality and precision are essential, vacuum drying is indispensable. The entire process must take place under controlled, ultra-dry environmental conditions. As the product moves between different production stages, vacuum dryers can be used as an airlock, maintaining low dew points and ensuring production remains uninterrupted.
Weiss Technik vacuum drying ovens ensure efficient drying and the highest levels of product protection, making them an integral facet of both research and manufacturing workflows.
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How does vacuum drying technology work?
Creating a vacuum in the chamber reduces air pressure, which lowers the boiling point of water and solvents according to the vapor pressure-temperature curve. This allows liquids to evaporate at significantly lower temperatures, protecting the integrity of temperature-sensitive products. Additionally, vacuum drying effectively reaches hard-to-access areas within complex product geometries, ensuring that air and trapped vapor are completely removed and preventing re-condensation.
How is vacuum drying used in battery production?
Vacuum drying is the final step in electrode production. To ensure that the batteries provide the necessary performance and longevity, the coated coils must be dried so that moisture and solvents are completely removed in the process. Vacuum dryers with circulating air temperature control perform this process particularly efficiently. After complete drying, the coils are transferred to cell assembly, where they are further processed under controlled drying room conditions – for example, dew point – 60°C.