Electrolyte Filling for Battery Manufacturing
Electrolyte filling is one of the most critical and technically demanding process steps in battery cell manufacturing. The electrolyte enables ion transport between the anode and cathode and is therefore essential for the cell's performance. Complete and uniform wetting of the electrodes and separator forms the basis for high performance, long service life, and maximum safety.
Cells are handled in a dry atmosphere (dew point < -78°C) or under an inert gas atmosphere and are filled under vacuum. Depending on the cell type, this is carried out either by applying a localized vacuum inside the cell or within a vacuum chamber.
For optimum electrolyte distribution, several process parameters are critical. These include the filling rate, pressure conditions, as well as defined dwell and soaking times. Only the precise interaction of these factors ensures complete impregnation of the cell stack and consistently high cell quality.
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MB-ELFI
- Automated electrolyte filling and sealing in a single system
- Reliable process control under vacuum or inert gas conditions
- High reproducibility for consistent cell performance
- Can be integrated into existing glovebox infrastructures
- Scalable solutions for various cell formats and cell types
Details
The MB-ELFI electrolyte filling unit has been specifically developed for integration into MBRAUN glovebox systems and enables safe, automated processing under a controlled atmosphere. It combines precise electrolyte dosing with a subsequent sealing process, performed either under vacuum or under inert gas conditions.
The controlled environment reliably prevents contamination caused by moisture or oxygen. At the same time, the automated filling process ensures high reproducibility and optimum cell quality.
Discover Our Integrated Solutions Across the Entire Process Chain
In addition to electrolyte filling, we offer a comprehensive portfolio of solutions for further battery cell manufacturing processes under a protected atmosphere.