Fuel Cell Bipolar Plates: How Do They Work? - Video

Bipolar plates are a key component of proton exchange membrane (PEM) fuel cells. They are machined with complex flow fields or channels that, when stacked, distribute gas and air, as well as conduct electrical current from one cell to the next.

Whilst stamping and hydroforming can be used to produce metallic bipolar plates, these processes can have limitations, such as compromising planarity (flatness) and introducing stresses and burrs.

Chemical etching, a subtractive sheet metal machining process which uses chemical etchants to create complex, highly accurate and cost-effective bipolar plates, can overcome many of these limitations.

Find out more here: https://www.precisionmicro.com/fuel-cell-plates/