Method for manufacturing multiscale structured metal support for low-temperature thin film solid oxide fuel cells and metal support manufactured thereby

A multiscale metal support manufacturing method using metal and ceramic powders addresses the challenges of high-temperature degradation and material limitations in solid oxide fuel cells, enabling efficient thin-film processing and improved performance at low temperatures.

KR102999351B1Active Publication Date: 2026-08-03SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
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Patent Information

Application Number
KR1020230066838
Authority / Receiving Office
KR · KR
Patent Type
Patents
Current Assignee / Owner
Filing Date
2023-05-24
Publication Date
2026-08-03
Estimated Expiration
2043-05-24

AI Technical Summary

Technical Problem

The commercialization of solid oxide fuel cells is hindered by the degradation of the system at high temperatures and the limited materials that can be used, leading to increased ohmic losses and polarization resistance at low-temperature operations, which prevents the application of thin-film processing to metal supports.

Method used

A method for manufacturing a multiscale metal support by controlling the surface of a porous metal support using metal and ceramic powders with different particle sizes, involving vacuum filtration, pressure application, and heat treatment in a reducing atmosphere to reduce pore size and surface roughness, enabling the application of thin-film processing.

Benefits of technology

The method allows for the fabrication of a porous metal support with a multiscale structure suitable for thin-film processes, enhancing the performance of low-temperature solid oxide fuel cells by reducing ohmic losses and polarization resistance.

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Abstract

The present invention relates to a method for manufacturing a metal support having a multiscale structure for a low-temperature thin-film solid oxide fuel cell, comprising the steps of: (a) filling the pores on the surface of a porous metal support with a first metal powder having a relatively large particle size; (b) filling the pores on the surface of the porous metal support with a second metal powder having a relatively small particle size and applying pressure; (c) heat-treating the porous metal support, on which the surface pores are filled with the first metal powder and the second metal powder, in a reducing atmosphere; and (d) filling the pores on the surface of the heat-treated porous metal support with a ceramic powder and heat-treating it in a reducing atmosphere, and to a metal support manufactured thereby.
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