Tech Etch offers a whole line of flow field bi-polar plates used in PEM fuel cells. These plates can be made with interlacing front and back side channels, producing a corrugated effect for improved cooling.
Bi-polar plates, also known as separator plates, are part of a fuel cell stack and act as an anode for one cell and a cathode for adjacent cells at the same time. They feature flow channels for fluid feeds and can contain conduits for the transfer of heat.
Crossover channels can also be produced via the photoetching process. Using titanium or stainless steel, we can create tolerances of up to .0005 inches. We always produce our fuel cell plates to the specifications of our customers.
Our photoetching products are made of stainless steel or titanium, whichever material works best for your needs. We can create:
- Bi-polar flow field plates
- Membrane support screens
- End caps