Membrane electrode assembly, electrolysis cell, and electrolysis device

By integrating an irregularity mitigation layer on the diaphragm and optimizing cathode and anode structures, the electrolysis device addresses diaphragm degradation and maintains stable voltage for efficient carbon dioxide conversion.

US20260139392A1Pending Publication Date: 2026-05-21KK TOSHIBA
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
KK TOSHIBA
Filing Date
2025-08-11
Publication Date
2026-05-21

AI Technical Summary

Technical Problem

Existing carbon dioxide electrolysis devices face issues with diaphragm degradation due to unevenness at the anode surface, leading to crossover of substances and increased electrolysis voltage, which affects long-term durability and efficiency.

Method used

Incorporating an irregularity mitigation layer with inorganic materials on the diaphragm surface to reduce anode surface unevenness, combined with specific catalyst materials and structures for the cathode and anode to enhance reaction efficiency and prevent diaphragm degradation.

Benefits of technology

The solution effectively reduces diaphragm degradation, maintains stable electrolysis voltage, and enhances the long-term durability and efficiency of the electrolysis process by minimizing crossover and promoting selective reactions.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure US20260139392A1-D00000_ABST
    Figure US20260139392A1-D00000_ABST
Patent Text Reader

Abstract

A membrane electrode assembly includes: a cathode that is arranged to be in contact with a reducible substance and reduces the reducible substance; an anode that is arranged to be in contact with an electrolytic solution containing an oxidizable substance and oxidizes the oxidizable substance; a diaphragm separating the cathode and the anode; and a layer that is provided between the anode and the diaphragm, has an inorganic material, and reduces a surface unevenness of the anode. An average pore size of the layer is smaller than an average pore size of the anode.
Need to check novelty before this filing date? Find Prior Art