Electrode for electrochemical cell

By forming a mesh-like coating on the surface of an open porous metal structure and leaving gaps, the problems of electrode warping and poor mechanical stability are solved, resulting in an easy-to-install and highly efficient electrode suitable for water electrolysis.

CN122249590APending Publication Date: 2026-06-19ALANTUM OJROPE GMBKH +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ALANTUM OJROPE GMBKH
Filing Date
2024-10-01
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing electrodes are prone to warping and have poor mechanical stability during manufacturing, especially due to the formation of brittle intermetallic compounds, which makes it impossible to manufacture large-size and stable electrodes. Furthermore, existing methods do not conform to the development trend of resource conservation.

Method used

A mesh-like coating is formed on the surface of an open porous metal structure. The coating is bonded by metal particles and fixed by sintering, leaving uncoated void areas. These voids can be filled with other materials to increase mechanical stability and catalytic activity. Metal oxide powder is used to form smaller metal particles under a reducing atmosphere.

Benefits of technology

The mechanically stable electrode can be bent without breaking, improving the efficiency of bubble removal and energy efficiency in the electrolysis process, while reducing resistance loss.

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Abstract

The electrode for an electrochemical cell designed for electrolysis is a support having an open-pore metal structure and a coating that increases the specific surface area, or a coating that increases the specific surface area and has enhanced catalytic activity, disposed on the outer surface of the separator facing the electrochemical cell. The coating is formed of metal, with metal particles bonded together via sintering bridges and / or organic binders and adhered to the surface of the open-pore metal structure. The coating forms multiple regions, with uncoated joints arranged between each of these regions.
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Citation Information

Patent Citations

  • Sensor arrangement for determining a variable voltage of a rotating chain or belt drive

    DE102017126569A1

  • Method for producing an open-porous shaped body with a modified surface, formed with a metal, and a shaped body produced by the method

    DE102017216566A1

  • Electrode for electrochemical evolution of hydrogen

    WO2021083862A1