Mirai FCV Power Unit Components



Hundreds of separators stacked one upon the other make up the fuel cell stack, the car’s power unit. Hydrogen channels and cooling channels are formed on both sides of each separator where the electricity generated is collected and transported.

Carbon paper for electrode substrate of fuel cell stack

Toray: Providing carbon fibre and GDL substrates, as well as MEA (Membrane Electrode Assembly) materials 

High pressure hydrogen gas valve

Keep high-pressure hydrogen gas in the tank, and supplying the gas to the regulator (70MPa)

Pressure-reducing valve

Reducing the high-pressure hydrogen gas supplied from the tank to low-pressure hydrogen gas

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