Rigid Flow Field Plate
Main Product Description
Flexible graphite-based flow-field components work well for many energy-storage projects, yet certain harsh operating environments demand higher structural rigidity and dimensional stability. This rigid flow-field substrate is built on high-purity artificial graphite, manufactured from petroleum-coke feedstock blended with resin binders. Production includes repeated high-pressure compaction, multi-round impregnation, carbonization and high-temperature graphitization thermal processing to achieve dense, monolithic carbon blocks.
The finished pure-carbon material combines exceptional electrical conduction capability, robust chemical inertness against corrosive electrolytes and enhanced mechanical robustness. Wire-cutting machining operations can carve diverse custom-tailored flow-path geometries onto plate surfaces to satisfy distinct stack-architecture requirements.
What sets this substrate apart is its reliable long-term performance under fluctuating electrochemical working conditions. Unlike some softer carbon alternatives, it remains dimensionally stable and rejects electrolyte-triggered swelling. Even under sustained hydrogen- and oxygen-evolution reactions, the plate avoids foam-generation defects that would degrade cell efficiency, delivering consistent operational reliability across the full battery working window.
Well-suited for large-scale redox-flow-battery deployments, this rigid graphite substrate supports custom-specified plate thickness, width and overall length to match client-specific stack layouts. Every production batch undergoes strict quality verification covering density testing, conductivity measurement and visual inspection for surface defects prior to delivery.
|
Item |
Unit |
Parameter |
|
Thickness |
mm |
1.0-2.5 |
|
Density |
g/cm³ |
1.7-1.9 |
|
Max Width |
mm |
≤1000 |
|
Max Length |
mm |
≤1500 |
|
Tensile Strength |
MPa |
≥30 |
|
Compressive Strength |
MPa |
≥60 |
|
Conductive-zone Conductivity |
S/cm |
≥1000 |
|
Carbon Content |
% |
≥99.9 |
FAQ
Q: What advantages does rigid artificial-graphite flow-field plate have compared with flexible graphite versions?
A: Rigid artificial-graphite plates deliver much higher electrical conductivity and superior dimensional stability; they eliminate swelling-related risks under aggressive electrolyte environments.
Q: What flow-path patterns can be achieved by wire-cutting?
A: Wire-cutting supports serpentine, parallel and other custom channel layouts subject to plate thickness and mechanical constraints.
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