US 11,952,671 B2
Electrochemical hydrogen pump
Kunihiro Ukai, Nara (JP); Norihiko Kawabata, Osaka (JP); Osamu Sakai, Osaka (JP); Hidenobu Wakita, Kyoto (JP); Jin Zhang, Osaka (JP); and Yukimune Kani, Osaka (JP)
Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka (JP)
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
Filed on May 21, 2019, as Appl. No. 16/418,327.
Claims priority of application No. 2018-113854 (JP), filed on Jun. 14, 2018.
Prior Publication US 2019/0383283 A1, Dec. 19, 2019
Int. Cl. C25B 1/02 (2006.01); B01D 53/32 (2006.01)
CPC C25B 1/02 (2013.01) [B01D 53/326 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An electrochemical hydrogen pump comprising:
at least one hydrogen pump unit including an electrolyte membrane, an anode in contact with one main surface of the electrolyte membrane, a cathode in contact with another main surface of the electrolyte membrane, an anode separator stacked on the anode, and a cathode separator stacked on the cathode, the at least one hydrogen pump unit transferring, to the cathode, hydrogen contained in a hydrogen-containing gas supplied to the anode and pressurizing the hydrogen;
a first fixing member for preventing movement of the cathode separator in a direction in which the cathode separator is stacked;
a second fixing member for preventing movement of the anode separator in a direction in which the anode separator is stacked;
a first end plate disposed on the anode separator positioned at one end in the stacking direction;
a second end plate disposed on the cathode separator positioned at another end in the stacking direction;
a first gas flow channel through which hydrogen in the cathode is supplied to a first space formed between the second end plate and the cathode separator;
a second gas flow channel through which the hydrogen in the cathode is supplied to a second space formed between the anode end plate and the anode separator; and
a gas discharge channel communicating with the first space, wherein:
the first gas flow channel includes a cathode gas discharge manifold and a communication path connecting the first space and the cathode gas discharge manifold, and
a cathode gas supplied from a cathode gas channel, which is disposed in the cathode separator, flows into the cathode gas discharge manifold.