Our Turnkey solution for SOFC/SOEC High-Volume Production
Screen printing is a key process to enable high-volume SOFC/SOEC production: By utilizing optimized screen meshes and process parameters for each step, a wide variety of materials can be applied using an EKRA printing machine. This ensures precise and uniform deposition of the required layer thicknesses. These achievements are realized at remarkable production speeds, with cycle times as short as 1.2 seconds per sheet using our AIRON product line. The AIRON printing line sets the benchmark for alignment repeatability in the market, boasting an impressive 12.5 µm with a print quality rated at 6σ.
The ideal drying solution is determined and then integrated into the line concept. Drying can occur in magazine dryers, paternoster systems, or horizontal drying systems. To safeguard the underlying substrate, the appropriate feeding technique involves magazine loading using knife-edge belts. For loading multiple substrates, parallel loading can be achieved even without a mechanical clamping device.
Sintering of the membrane at temperatures around 900 °C is performed using stand-alone or inline systems. To achieve this, the printed and dried substrates must be efficiently fed into the sintering oven, maintaining competitive cycle times. This efficiency is achieved through our innovative automation solutions. Depending on the automation concept, the sintered substrates are temporarily stored in magazines for subsequent processing using the cutting laser.
Quality control systems that ensure 100 % defect detection (such as pinholes and print misalignment) utilize 2D or 3D inspection technologies. ASYS provides its own systems that incorporate cutting-edge artificial intelligence (AI) technology for this purpose. Our systems encompass defect identification, dimensional analysis of printed structures, automated decision-making, advanced data visualization, and autonomous process optimization.
Particularly in the manufacturing of SOFCs with printed layers, porosity becomes a critical factor impacting performance and efficiency. The extent of porosity within materials influences aspects like gas diffusion, heat transfer, and chemical reactions within the cell. Our system guarantees 100 % quality control, ensuring the highest production yields.
By stacking fuel cells, manufacturers can achieve higher power outputs while maintaining the compact nature of these individual fuel cells. The stacking process demands precision to ensure efficient gas distribution, thermal management, and electrical connectivity. The ASYS Group offers various solutions for stacking utilizing robotic systems and other handling technology.
