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Composite Isostatic Graphite Bipolar Plates

Composite Isostatic Graphite Bipolar Plates

Composite Isostatic Graphite Bipolar Plates

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.

  • Brand :

    Rubri
  • Customization :

    Yes
  • MOQ :

    100
New Products
  • Product Details

Product Features

Composite Isostatic Graphite Bipolar Plates

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

 

Graphite Bipolar Plates

Stationary fuel cell power generation systems

Portable fuel cell power supplies

Aerospace fuel cell systems

Special-purpose fuel cells

 

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