Li-ion battery electrode manufacturing - Energy
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Li-ion battery electrode manufacturing benefits
Li-ion battery electrode manufacturing benefits
By complementing our technology with that of world-class partners, Dürr offers a turnkey battery electrode plant. Manufacturing solutions for optimizing battery electrode production with simultaneous 2-sided coating enabled by the Dürr tensioned-web coating system.
Process overview
Dürr's simultaneous 2-side coating systems provide many benefits, the complete electrode plant increases these benefits by translating them to all process steps:
- Powder Handling
- Slurry Mixing
- Coating & Drying
- Calendering/Roll Pressing
- Secondary Drying
- Slitting
- NMP Recovery & Purification
Improved quality
Two-sided coating coupled with flotation drying offers:
- Improved Side A to Side B alignment
- No edge curl after drying
- Drying consistency for improved yield
- Reduced wrinkles due to flotation drying
Integrated solvent recovery and refining:
- Collects the NMP with condensation to minimize contamination
- Purifies on site with highest quality
- Closes loop for solvent recycling
Lower total costs
Simplified process design requires lower capital investment. In addition, simultaneous two-sided coating with inline calendering/roll pressing reduces operating costs:
- Heating only 1 dryer
- Fewer operators
- Less material waste
- Increased yield
Integrated solvent recovery and refining:
- Includes heat recovery to reduce utility demand
- Minimizes waste
- Provides cost savings by capturing >99% of NMP
Simplified factory layout/material flow
With a straight-path product flow and single-level machine:
- The factory layout can be linear
- Direct slurry piping to a single coating station
- Reduced coating-area floor space
Process development
During the machine build period, Dürr provides customer-specific process development trials, making it possible to dramatically reduce time from commissioning to full production.