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In order to level the surface of GDL with silicon gasket, depth of the fields was set
to 0.5mm for both anode and cathode side. GDL’s were placed into the field and gaskets
were placed to the surroundings of GDL.
Figure 3.4. Parts of the Electrolysis Cell
Manufactured electrolysis cell was tightened with eight metric 5mm bolts. Metal
bolts were sealed with plastic tubes to avoid the electrical conduction. 8mm thick stainless
steel plates were also used at both ends to apply much uniform pressure on the components
of the cell.
3.2.2. Assembly and Test Procedures for the PEM Electrolysis Cell
• Single Cell PEM Electrolyzer Assembly Procedure
1. Insert 6 bolts to the cathode side end plate and fix the plate to the bench.
2. Place a 1mm thick silicon layer on the end plate.
3. Place the copper electric conduction plate on silicon layer.
4. Place the cathode side graphite.
5. Place the cathode side GDL into the cathode graphite layer.
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