Based on over twenty years of experience in the development of fuel cell technology, APT has designed a high-efficient fuel cell stack based on sheet metal separators. Incorporated with unique stack structure design, optimized fluid flow distribution, sophisticated micromesh flowfield, high efficient MEA, and in-mold sealing technology, APT have developed quick assembly modularized technology, aka Xell®, which has laid the foundation for high-power automotive fuel cell batch manufacturing.
CAD/CAE/CFD Of Separator Flowfield
CAD/CAE/CFD Of Separator Flowfield
Parallel Straight Flow Field
Cross Straight Flow Field
Parallel Wave Flow Field
Combined Wave-Straight Flow Field
Proved and Available Flow-Field Plates
| Parameters | Specification |
|---|---|
| Plate Material | SS 316 |
| Plate Area | 312.7 cm² |
| Active Area | 183.7 cm² |
| Plate Thickness | 0.1 mm |
| Channel Width | 1.2 mm |
| Channel Depth | 0.5 mm |
| Channel Pitch | 2.4 mm |
| Bipolar Plate Thickness | 0.6 mm |
| Channel Depth-to-Width Ratio | 42 % |
| Open Area Ratio | 48.7 % |
Proved and Available Flow-Field Plates
| Parameters | Specification |
|---|---|
| Plate Area | 140 cm² |
| Active Area | 90 cm² |
| Plate Thickness | 0.1 mm |
| Channel Width | 1 mm |
| Channel Depth | 0.5 mm |
| Channel Pitch | 2.0mm |
| Bipolar Plate Thickness | 0.65 mm |
| Channel Depth-to-Width Ratio | 50 % |
| Open Area Ratio | 59 % |
Verification Of Micromesh Flowfield
Noteworthy that we have successfully incorporated micro-staggered mesh into the cathode flow field design. By using the CFD simulation together with experimental verification, we have confirmed that the use of micro-staggered mesh is helpful in the water management in stack cathode.
Electric current density calculation result
Fluid flow speed calculation result
