Question

PEM fuel cells can only use graphite based flow fields,it is true or false

Answer 1

Absolutely true, PEM fuel cells use only graphite based flow fluids. The effect of flow field designs is very significant for fuel cell performance.

Therefore, graphite plates are developed with various designs for different kinds of flow fields.

It is also important to remember that different flow field designs are used for oxygen and hydrogen while making graphite plates.

Answer 2

PEM fuel cells: Proton-exchange membrane fuel cells is used for the cells in the automobiles or cells that are portable.

Reasons:

• The graphite plates are developed in various forms suited for different kinds of flow field in the fuel cell.  
• The performance is determined by the flow field and graphite plates enhance the flow field mechanism  

Hence, PEM fuel cells can only use graphite based flow fields.

So, the given statement is true.