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Abstract

A hydrogen supply system includes: an electrochemical hydrogen pump including a proton-conductive electrolyte membrane, an anode provided to a first and second main surfaces of the proton-conductive electrolyte membrane, respectively, an anode flow path and cathode flow path through which hydrogen flows, and a voltage applicator applying a voltage between the anode and cathode, pressurizing and sending hydrogen supplied to the anode to the cathode by applying a voltage by the voltage applicator, and supplying the pressurized hydrogen in the cathode flow path to a hydrogen reservoir; a humidity adjuster adjusting humidity of at least one of the anode and cathode flow paths; and a controller controlling the humidity adjuster to increase the humidity of at least one of the anode and cathode flow paths in supplying hydrogen with relative humidity of less than 100% to the anode flow path and driving the electrochemical hydrogen pump.

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First Claim