Brochure: Bipolar Plates
For Fuel Cells and Redox Flow Batteries
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Extruded graphite bipolar plates
Our extruded graphite bipolar plates also exhibit high corrosion resistance to various electrolytes. They impress with good mechanical strength without brittle fracture as well as very good liquid tightness. Another advantage of the thermoplastic material is that the flexible bipolar plate can be welded directly to the frame of the battery stack. This replaces conventional sealing solutions and ensures a very compact design. By optimizing our formulations, we can precisely match the electrical, mechanical and thermal properties.
The thermoplastic-bonded high-performance material is transferred into a continuously produced film. This makes it possible to produce bipolar plates in large formats (> 1000 mm length and 380 mm width). The film can be given additional features by surface treatment and finishing.
For fuel cells and stationary energy storage systems
Regardless of whether our solutions are used as components in stationary or mobile fuel cells or in energy storage systems, our materials and manufacturing expertise offers you added value in a variety of ways. For example, after your inquiry and joint discussion of the technical possibilities, we can provide you with plate samples and prototypes. These can then be manufactured for you in small quantities as well as in high volumes.
At Schunk, you can rely on our own compound production, continuous further development of materials and many years of experience - after all, our graphite bipolar plates have already proven themselves on the market for over 20 years and in hundreds of thousands of plates.
In the field of stationary energy storage, our solutions achieve high system performance. Fabricated products can be customized to your design - while maintaining tight manufacturing tolerances and reducing scrap during assembly and operation. Last but not least, our reliable supply chain and local customer service make us a strong and dependable industry partner.
Schunk Group
Engineering competence in materials technology and machine design.
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"For pilot projects, we supply raw sheets of our compression molded grade, and customers machine the final shape. For series production, we can use customer-specific pressing tools, which saves post-processing and material losses due to mechanical processing from larger raw plates." - Hartmut Groß, Director New Business and Technology
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Technology of the future - already realized today
Durable products with excellent properties and with a convincing performance - this is what characterizes Schunk's graphite bipolar plates. Combined with our material and process know-how as well as our ability to produce high volumes, you get a unique all-round package for these technologies of the future. We offer the following solutions for your fuel cell and energy storage applications:
- Graphite bipolar plates (compression molded with integrated flow field, milled, bonded, surface optimized).
- Graphite bipolar plates (thermoplastic material, extruded, flexible, surface-optimized)
- Blank plates (flat, for machining)
- Single plates (with flow field, milled, compression molded, surface optimized)
- Specific products for flow-through and flow-by redox flow cell designs.
- On demand / innovations:
- Electrodes for redox flow batteries
- PTLs (Porous Transfer Layer) made of carbon for water electrolysis systems
Graphite Bipolar Plates
We explain the unique properties of bipolar plates and how they contribute to the efficiency and performance of fuel cells. We also show how our customers can benefit from using this technology.
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Graphite Bipolar Plates
Jens Völlner, Business Development Manager Fuel Cell Applications, about graphite bipolar plates - the key-component for fuel-cells.
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