Compression apparatus

A compression apparatus comprising:

• at least one compression unit including an electrolyte membrane, an anode provided on a first principal surface of the electrolyte membrane, a cathode provided on a second principal surface of the electrolyte membrane, an anode separator stacked on the anode, and a cathode separator stacked on the cathode;
• a voltage applier that applies a voltage between the anode and the cathode;
• an anode end plate provided on the anode separator located at a first end in a direction of stacking;
• a cathode end plate provided on the cathode separator located at a second end in the direction of stacking;
• and
• first and second plates provided between the cathode end plate and the cathode separator located at the second end,
• wherein
• the compression apparatus causes, by using the voltage applier to apply a voltage, protons taken out from an anode fluid that is supplied to the anode to move to the cathode via the electrolyte membrane and produces compressed hydrogen,
• the first plate has formed therein a first space in which to store a cathode gas containing the compressed hydrogen, and
• the second plate is provided with a first manifold through which the cathode gas flows and a first communicating path through which to lead, to the first space, the cathode gas having flowed in from the first manifold.