Electrolysis apparatus for the electrolytic production of oxygen from oxide-containing starting material

Patent metadata

Field	Value
Publication number	US-11479869-B2
Application number	US-202017068079-A
Country	US
Kind code	B2
Filing date	Oct 12, 2020
Priority date	Oct 24, 2019
Publication date	Oct 25, 2022
Grant date	Oct 25, 2022

Abstract

An electrolysis apparatus for the electrolytic production of oxygen from oxide-containing starting material includes at least one cathode which at least partly delimits a receiving region which in at least one operation state is configured for receiving the oxide-containing starting material and at least one anode,wherein the electrolysis apparatus has at least one selective oxygen pump which is at least partly realized integrally with the anode.

First claim

The invention claimed is:

1. An electrolysis apparatus for the electrolytic production of oxygen from oxide-containing starting material, having at least one cathode which at least partly delimits a receiving region that in at least one operation state is configured for receiving the oxide-containing starting material, and having at least one anode, comprising
at least one selective oxygen pump which is at least partly realized integrally with the anode; and
at least one container for material having at least one bottom plate which has at least one electrically insulating alignment element for an alignment of the at least one selective oxygen pump relative to the cathode.

2. The electrolysis apparatus as claimed in claim 1 , wherein
the at least one selective oxygen pump has at least one interior electrode which forms the anode.

3. The electrolysis apparatus as claimed in claim 1 , wherein
the at least one selective oxygen pump has at least one solid electrolyte, which is configured for a selective transfer of oxygen from the receiving region into a pump space.

4. The electrolysis apparatus as claimed in claim 2 , wherein
the at least one interior electrode is arranged directly on an inner side of the solid electrolyte.

5. The electrolysis apparatus as claimed in claim 1 , further comprising
a reactor housing, wherein the at least one container for material is configured such that in at least one operation state the at least one container is arranged in the reactor housing and in at least one operation state the at least one container is configured for receiving the oxide-containing starting material.

6. The electrolysis apparatus as claimed in claim 5 , wherein
the at least one material container has at least one outer wall which is at least partly formed by the cathode.

7. The electrolysis apparatus as claimed in claim 5 , further comprising
at least one coupling unit which is configured for a releasable connection of the container for material with the reactor housing.

8. The electrolysis apparatus as claimed in claim 1 , further comprising
a reactor housing which has at least one reactor space and at least one electrolyte reservoir which is connected with the reactor space and is configured for receiving an electrolyte.

9. The electrolysis apparatus as claimed in claim 8 , further comprising
at least one electrolyte displacer which is configured for displacing at least a portion of the electrolyte from the electrolyte reservoir into the reactor space in at least one operation state.

10. An oxygen generation system comprising the electrolysis apparatus as claimed in claim 1 , for the electrolytic production of oxygen from oxide-containing starting material, further comprising
at least one enrichment unit for an enrichment of the oxide-containing starting material for the electrolysis apparatus and at least one oxygen processing unit which is configured for converting the oxygen produced by means of the electrolysis apparatus into water.

11. The oxygen generation system as claimed in claim 10 , wherein
the oxygen processing unit comprises at least one fuel cell, which is configured for converting the chemical reaction energy from the production of water into electric energy.

12. A method for operating the electrolysis apparatus as claimed in claim 1 , in which the oxide-containing starting material is brought into contact with an electrolyte in order to leach out oxygen ions in a leaching step, further comprising
a pumping step in which the leached-out oxygen ions are pumped from a receiving region into a pump space by means of the selective oxygen pump.

13. The method as claimed in claim 12 , further comprising
a neutralization step in which the oxygen ions are neutralized at an interior electrode of the selective oxygen pump and oxygen gas is produced.

14. The method as claimed in claim 12 , wherein
the oxygen ions are primarily oxygen anions.

15. The electrolysis apparatus as claimed in claim 1 , wherein
the at least one selective oxygen pump has at least one zirconium oxide element, which is configured for a selective transfer of oxygen from the receiving region into a pump space.

Assignees

• Airbus Defence & Space Gmbh

Inventors

• Haeming Marc
• Seidel Achim
• Zell Uwe

Classifications

• H01M16/003

  of fuel cells with other electrochemical devices, e.g. capacitors, electrolysers · CPC title

• C25B9/70

  Assemblies comprising two or more cells · CPC title

• H01M8/0656

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

• C25B1/02 Primary

  Hydrogen or oxygen · CPC title

• C25B9/09

  Fused bath cells · CPC title