Cost and performance prospects for composite bipolar plates in fuel cells and redox flow batteries

• Integrated materials and cost analysis for carbon–polymer-composite bipolar plates.
• Investigation of forming methods considering electrochemical conductivity of product.
• Production cost model for compression and injection molded plates.
• Cost prospects based on sensitivity analysis of production parameters.

Carbon–polymer-composite bipolar plates (BPP) are suitable for fuel cell and flow battery applications. The advantages of both components are combined in a product with high electrical conductivity and good processability in convenient polymer forming processes. In a comprehensive techno-economic analysis of materials and production processes cost factors are quantified. For the first time a technical cost model for BPP is set up with tight integration of material characterization measurements.

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