The key to full production potential
Slot Dies
Our Slot Die technology illustrates what is possible: maximum process control and stability in the production of electrodes for powerful, robust lithium-ion batteries. Jagenberg Converting Solutions' Slot Die technology is the result of over 20 years of experience in the design and manufacturing 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.
- ≤ 2,000 mm coating width
- ≤ 100 m/min coating speed
Precision that fits
The individual coating requirements of our customers are at the heart of our high-precision Slot Dies. Each solution is designed precisely to meet all requirements - from individual Slot Dies to entire coating lines. In this way, we guarantee maximum performance and the best possible cost-benefit ratio.
The process expertise we have acquired over the years, from systematic analysis to high-precision 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 process.
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
You can find more detailed information in our specifications.
Slot Die coating: First choice for gigafactories
Slot Dies are the gold standard for coating substrates for Li-ion battery applications. In addition to exceptionally uniform coating thickness, our Slot Die technology ensures precise control over the coating process. High reliability is further complemented by pre-dispensing capability, excellent coating performance, robust process stability and a closed slurry feed system.
Customized work from test to production
When designing our Slot Dies, our team of experienced specialist engineers benefit from our rigorous process: It includes
- rheological characterization,
- analytical calculations,
- numerical fluid mechanics with computational fluid dynamics (CFD) and
- finite element simulations (FEM).
On this basis, our individualized solutions achieve perfectly homogeneous coating results.
Precision manufacturing
We also follow a thorough and proven process in the manufacturing of the Slot Dies based on the analysis results, which includes precise adjustments and rigorous testing. Our manual lapping process guarantees micron-precise manufacturing accuracy, which is further ensured by industry-leading quality assurance mechanisms. The result is a uniform, maximally accurate coating.
In this way, our 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 coating technology, tailored to the needs of the energy industry.
From testing to perfection
At our Erlangen site, our experts are dedicated to the continuous development of our high-precision Slot Dies. The final acceptance tests preceding every system installation guarantee perfect 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 dryer
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)
Drying
- Dryer optimization
- Drying curves
- CFD simulations
Would you like to find out more?
Our experts are looking forward to speaking to you in person!
Impressions of our Slot Dies
Additional technologies
Coating unit
Our pilot and production systems cover all scaling levels of innovative coating processes. Regardless of the application, our technologies will help you create the future.
Dryer
The drying process plays a central role in the quality of the finished battery packs. With the precision of our "Advanced Drying Technologies", we make new performance dimensions tangible.
Winder
Endless web guidance, limitless precision: Kampf LSF's TechWinder turret winder and unwinder stands for quality in the production of innovative cathode and anode substrates for lithium-ion batteries.
