Compression apparatus

Patent metadata

Field	Value
Publication number	US-12100874-B2
Application number	US-202117345210-A
Country	US
Kind code	B2
Filing date	Jun 11, 2021
Priority date	Jan 8, 2020
Publication date	Sep 24, 2024
Grant date	Sep 24, 2024

Abstract

The compression apparatus includes an electrolyte membrane, an anode on a principal surface of the electrolyte membrane, a cathode on another principal surface of the electrolyte membrane, an anode separator on the anode, a cathode separator on the cathode, and a voltage applicator. Upon the voltage applicator applying the voltage between the anode and the cathode, protons are extracted from an anode fluid fed onto the anode to migrate onto the cathode through the electrolyte membrane and compressed hydrogen is produced. The cathode separator has a first manifold hole and a first O-ring groove surrounding the first manifold hole. The compression apparatus includes a first O-ring held by the first O-ring groove and a face seal disposed on an outer periphery of a region of an anode-side principal surface of the anode separator which faces the anode. The first O-ring is arranged to abut against the anode-side principal surface.

First claim

What is claimed is:

1. A compression apparatus comprising:
an electrolyte membrane;
an anode disposed on a principal surface of the electrolyte membrane;
a cathode disposed on another principal surface of the electrolyte membrane;
an anode separator disposed on the anode;
a cathode separator disposed on the cathode; and
a voltage applicator that applies a voltage between the anode and the cathode,
wherein, upon the voltage applicator applying the voltage, the compression apparatus causes protons extracted from an anode fluid fed onto the anode to migrate onto the cathode through the electrolyte membrane and produces compressed hydrogen,
wherein the cathode separator has a first manifold hole formed therein and a first O-ring groove formed therein so as to surround the first manifold hole, both of which are disposed between a region of the cathode separator facing the cathode and an outer periphery of the cathode separator,
wherein the compression apparatus comprises a first O-ring held by the first O-ring groove and a face seal having a first opening and disposed on an outer periphery of a region of an anode-side principal surface of the anode separator, the anode-side principal surface being directed toward the anode, the region facing the anode, and
wherein the first O-ring is arranged to abut against the anode-side principal surface of the anode separator, and the first opening of the face seal is disposed on a region of the anode-side principal surface of the anode separator, the region against which the first O-ring abuts.

2. The compression apparatus according to claim 1 , comprising:
a frame body arranged to surround an outer periphery of the electrolyte membrane,
wherein the face seal is arranged to face a region of an anode-side principal surface of the electrolyte membrane, the anode-side principal surface being directed toward the anode, the region in which the anode is not disposed, and an anode-side principal surface of the frame body, the anode-side principal surface being directed toward the anode; and
wherein the frame body is not disposed in a region in which the first O-ring is disposed.

3. The compression apparatus according to claim 1 , comprising:
a pressure-resistant member disposed on an outer periphery of the first O-ring, the pressure-resistant member being held by the first O-ring groove,
wherein the pressure-resistant member is arranged to abut against the anode-side principal surface of the anode separator, and
wherein the face seal is not disposed in a region of the anode-side principal surface of the anode separator, the region against which the pressure-resistant member abuts.

4. The compression apparatus according to claim 3 , comprising:
a frame body arranged to surround an outer periphery of the electrolyte membrane,
wherein the face seal is arranged to face a region of an anode-side principal surface of the electrolyte membrane, the anode-side principal surface being directed toward the anode, the region in which the anode is not disposed, and an anode-side principal surface of the frame body, the anode-side principal surface being directed toward the anode, and
wherein the frame body is not disposed in a region in which the first O-ring and the pressure-resistant member are disposed.

5. The compression apparatus according to claim 1 ,
wherein the cathode separator has a second manifold hole formed therein and a second O-ring groove formed therein so as to surround the second manifold hole, both of which are disposed between the region of the cathode separator facing the cathode and the outer periphery of the cathode separator,
wherein the compression apparatus comprises a second O-ring held by the second O-ring groove, and
wherein the second O-ring is arranged not to abut against the anode-side principal surface of the anode separator.

6. The compression apparatus according to claim 5 ,
wherein the second O-ring is arranged to abut against an anode-side principal surface of the face seal, the anode-side principal surface being directed toward the anode.

7. The compression apparatus according to claim 5 , comprising:
a frame body arranged to surround an outer periphery of the electrolyte membrane,
wherein the second O-ring is arranged to abut against a cathode-side principal surface of the frame body, the cathode-side principal surface being directed toward the cathode.

8. The compression apparatus according to claim 5 ,
wherein the anode fluid flows through the second manifold hole.

9. The compression apparatus according to claim 1 ,
wherein the compressed hydrogen flows through the first manifold hole.

10. A compression apparatus comprising:
an electrolyte membrane;
an anode disposed on a principal surface of the electrolyte membrane;
a cathode disposed on another principal surface of the electrolyte membrane;
an anode separator disposed on the anode;
a cathode separator disposed on the cathode; and
a voltage applicator that applies a voltage between the anode and the cathode, wherein:
upon the voltage applicator applying the voltage, the compression apparatus causes protons extracted from an anode fluid fed onto the anode to migrate onto the cathode through the electrolyte membrane and produces compressed hydrogen,
the cathode separator has a first manifold hole formed therein and a first O-ring groove formed therein so as to surround the first manifold hole,
the compression apparatus comprises a first O-ring held by the first O-ring groove and a face seal disposed on an outer periphery of a region of an anode-side principal surface of the anode separator, the anode-side principal surface being directed toward the anode, the region facing the anode,
the first O-ring is arranged to abut against the anode-side principal surface of the anode separator, and the face seal is not disposed on a region of the anode-side principal surface of the anode separator, the region against which the first O-ring abuts,
the compression apparatus further comprises a pressure-resistant member disposed on an outer periphery of the first O-ring, the pressure-resistant member being held by the first O-ring groove,
the pressure-resistant member is arranged to abut against the anode-side principal surface of the anode separator, and
the face seal is not disposed in a region of the anode-side principal surface of the anode separator, the region against which the pressure-resistant member abuts.

11. The compression apparatus according to claim 10 , further comprising:
a frame body arranged to surround an outer periphery of the electrolyte membrane, wherein:
the face seal is arranged to face a region of an anode-side principal surface of the electrolyte membrane, the anode-side principal surface being directed toward the anode, the region in which the anode is not disposed, and an anode-side principal surface of the frame body, the anode-side principal surface being directed toward the anode, and
the frame body is not disposed in a region in which the first O-ring and the pressure-resistant member are disposed.

Assignees

• Panasonic Ip Man Co Ltd

Inventors

• Kakuwa Takashi
• Kita Hiromi
• Sakai Osamu

Classifications

• C25B9/77

  having diaphragms · CPC title

• B01D2256/16

  Hydrogen · CPC title

• B01D53/326

  in electrochemical cells · CPC title

• H01M8/0656 Primary

  by electrochemical means (H01M8/065 takes precedence) · CPC title

• Y02E60/50

  Fuel cells · CPC title