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100Product Features
1. Material Characteristics
Composite graphite substrate: Combines high-purity graphite with reinforcing materials, ensuring both superior conductivity and mechanical strength.
Isostatic pressing: Uniform material density and a defect-free, dense structure achieved through high-pressure isostatic molding.
Surface modification: Special surface treatment enhances contact conductivity and corrosion resistance.
2. Performance Advantages
High conductivity: In-plane resistivity <10 mΩ·cm, low contact resistance, improving fuel cell efficiency.
Excellent gas tightness: Gas permeability <1×10⁻⁹ cm³/cm²·s·Pa, effectively preventing gas crossover.
Strong corrosion resistance: Long-term stability in acidic environments with extended service life.
High mechanical strength: Flexural strength >50 MPa, meeting stack pressure requirements.
Lightweight design: Density 1.8-2.2 g/cm³, 30% lighter than traditional metal bipolar plates.
3. Structural Features
Precision flow field design: Optimized serpentine, parallel, or interdigitated flow channels ensure uniform gas distribution.
Ultra-thin design: Thickness as low as 1.0-2.0 mm, increasing stack power density.
Integrated structure: Reduces sealing interfaces, minimizing leakage risks.
Parameters
| Item | Unit | Specifications |
| Density | g/cm³ | ≥2.0 |
| Electrical resistivity | μΩm | ≤10 |
| Bending strength | Mpa | >60 |
| Compressive strength | Mpa | >130 |
| Shore hardness | HSD | >70 |
| Boundary-layer thickness | mm | ≥0.3 |
| Air permeability(@220kpag) | Sccm | <0.1 |
| Working life | h | >30000 |
Multiple Usage Scenarios
Stationary fuel cell power generation systems
Portable fuel cell power supplies
Aerospace fuel cell systems
Special-purpose fuel cells
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Composite isostatic graphite bipolar plates are high-performance core components for fuel cells, manufactured using isostatic pressing technology and composite graphite materials. Designed specifically for proton exchange membrane fuel cells (PEMFCs), these plates offer excellent electrical conductivity, corrosion resistance, and gas barrier properties.
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