Now, I work with the PEMFC. I understand the mechanism of electron and proton transfer in a single cell. However, it is hard for me to understand that mechanism in a fuel cell stack. A gasket separates each stack, so there should be no electrical conductivity in each cell. So, how does it is work?
Dear Yusuf Pradesar
Most probably, in modern times of fuel cells, the bipolar plates carry the electric current from one cell to an adjacent cell. Back then, you can find separate current collectors employed to get the job done.
Gaskets are just to prevent if there is any leak in reactants or product water.
Typically in a fuel cell stack, each cell is sandwiched between two bipolar plates that separates it from adjacent cells. These plates provide electrical conduction between cells. Bipolar plates have flow field channels on both the sides and they form the anode and cathode compartments on opposite sides for two adjacent cells.
- Badges
- Science topic