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Product Advantage
• Composite material ration can be tailored to different process requirements
• Mold production achieves effective cost reduction
• High flexibility meets different loading pressures
• Corrosion current density<1μA/cm2
• Conductivity≥500
Technical Parameters
Datasheet of Harog' s Composite flexible Graphite Bipolar Plate
Parameter | Unit | Data |
Flatness | Mm | 0.3 |
Air leakage | ml/min | <0.1 |
Oxygen permeability | cm³(cm²·S)-1 | ≤2x10-8 |
Bipolar plate thickness | Mm | ≤1.3 |
Conductivity | S/cm | ≥350 |
Contact resistance (@1.4MPa) | mΩ·cm² | ≤5 |
Flexural strength | MPa | ≥50 |
Flexural modulus | GPa | >60 |
Corrosion current | μA/cm2 | <1 |
Contact angle | ° | >70 |
Shore hardness | HS | >30 |
Thermal conductivity | W/(m.k) | >10 |
Durability in ethylene glycol | / | Excellent |
Product Uses
Composite flexible graphite bipolar plates from Harog are high-performance components suitable for a wide range of fuel cell applications. They offer excellent electrical conductivity, corrosion resistance, and mechanical strength, ensuring efficient and reliable fuel cell operation across different technologies
• Proton Exchange Membrane Fuel Cells (PEMFCs)
Composite flexible graphite bipolar plates are designed to meet the stringent requirements of PEMFCs. They offer high electrical conductivity, corrosion resistance, and gas distribution capabilities. These plates are crucial for efficient power generation and long-term durability, making them ideal for automotive and portable power applications
• Direct Methanol Fuel Cells (DMFCs)
In DMFCs, these plates manage the flow of methanol and oxygen, optimizing fuel cell performance. Their high conductivity and chemical stability ensure efficient energy conversion, making them suitable for portable electronic devices.
• Alkaline Fuel Cells (AFCs)
In AFCs, Harog’s graphite bipolar plates ensure efficient electron transfer and gas distribution. Their resistance to the alkaline environment and high conductivity enhance the cell’s performance. These plates are crucial for applications requiring high power density and reliability, such as space and military applications.
• Phosphoric Acid Fuel Cells (PAFCs)
For PAFCs, composite flexible graphite bipolar plates withstand the acidic environment, providing stable electrical conductivity and managing the flow of reactants for consistent power output.
• Anion Exchange Membrane Fuel Cells (AEMFCs)
Composite flexible graphite bipolar plates are also compatible with AEMFCs. They provide the required conductivity and stability in the alkaline environment, ensuring efficient operation and long-term durability. These plates are suitable for applications where AEMFCs are used, such as portable power units and small-scale power generation.