The key to full battery production potential
Coating Slot Dies
Our coating slot die technology shows what is possible: maximum process control and stability in the production of electrodes for high-performance, robust lithium-ion batteries. Jagenberg Converting Solutions' proprietary technology is the result of more than 20 years of experience in the design and manufacture of precision slot dies. Tailor-made, 100% customized concepts and designs guarantee flawless, uniformly coated anodes and cathodes - and open the door to a new world of quality and efficiency.
- Coating width: ≤ 2,000 mm
- Coating speed: ≤ 100 m/min.
Coating precision that fits
Your customers' individual battery coating requirements are at the heart of our high-precision coating slot dies. Each solution is designed precisely to meet all requirements - from individual slot dies to entire LIB coating lines. That is how we guarantee maximum performance and an optimal cost-benefit ratio.
The process expertise we have acquired over the years, from systematic analysis to high-precision battery and fuel cell production, serves as a solid and flexible basis for customizing each system. Because despite all individual requirements: Performance and efficiency are the maxims of every production step.
Technical features Slot Die Coating
| Area of application | Anode or cathode coating of Li-ion batteries |
| Coating width | up to 2,000 mm |
| Coating speed | up to 100 m/min. |
| Wet loading | 50 – 400 g/m² |
| Coating types | Full-surface or stripe coating |
| Slot Die type | Flexlip, manual adjustment via differential screws |
| Material | AISI 630 or AISI 316L |
| Cross web distribution | ±1% |
| Lip straightness | ≤ 3 μm |
| Manifold chamber | Infinity-half shell |
| Lip and manifold design method | Application specific based on: |
| Rheological analysis | |
| Analytical process window calculations | |
| CFD & FEM simulations | |
| Finish | Inner surfaces and lip precision ground and manually lapped, flow surfaces polished |
| Alignment system die | Guide blocks |
| Alignment system shims | Pins & shim offset screws |
| Ventilation | 2 holes as standard |
Further information
Learn more about our proprietary coating slot dies in our specifications
Coating Slot Die: First choice for giga factory production equipment
Slot dies are the gold standard for substrate coating in Li-ion battery applications. In addition to exceptionally uniform film thickness, our slot die technology provides precise control over the coating process. We also achieve exceptional reliability through our pre-dispensing capability, excellent anode and cathode coating performance, robust process stability, and a closed slurry feed system.
Customized work from pilot line to battery production line
When designing our slot dies, our team of experienced specialist engineers benefit from our sophisticated, systematic process. It includes
- rheological characterization,
- analytical calculations,
- numerical fluid mechanics with computational fluid dynamics (CFD), and
- finite element simulations (FEM).
This process allows our individualized solutions achieve perfectly homogeneous coating results.
Precision manufacturing with gold standard coating slot dies
We also follow a thorough and proven process in the manufacture of our slot dies themselves. It is based on the results of analysis that includes precise adjustments and rigorous testing. Our manual lapping process ensures micron-level accuracy in battery manufacturing, and is backed by industry-leading quality assurance mechanisms. This results in a uniform, highly accurate battery coating.
In this way, our coating slot die solutions help to sustainably increase the quality and efficiency of lithium-ion battery production.
In short, at JCS, battery manufacturers experience the gold standard in LIB coating technology, tailored to the needs of the automotive and energy industries.
From lab coating to production perfection
Experts located at our Erlangen site are continuously dedicated to the development of high-precision coating slot dies. Thanks to final acceptance tests preceding each system installation, we are able to guarantee perfect LIB coating results with minimum commissioning times on site.
- Fixed Lip or Flexlip
- Coating width up to 2,500 mm
- Individually designed and as R&D line
- Incl. accessories: shims, assembly trolley, measuring devices, connection fittings, slurry supply systems, conveyor systems, ...
- Repairs and spare parts
For the production of initial R&D product samples for battery and fuel cells
- Device duo:
TableCoater Basic
TableCoater Premium - Premium laboratory post-dryer
Battery coating
- Fluid measurements and process window calculations
- Practical feasibility studies (laboratory scale)
- CFD simulations (Computational Fluid Dynamics: computer-aided method for analyzing and predicting flow behavior and phenomena in liquids)
Post-drying
- Post-dryer optimization
- Drying curves
- CFD simulations
Would you like to find out more?
Our experts are looking forward to speaking to you in person!
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