Electrochemical cell, electrochemical cell device, module, and module housing device

The electrochemical cell design with a fuel electrode layer and oxide ion conductivity solid electrolyte layer addresses electrode resistance and gas leakage issues, enhancing power generation efficiency and stability.

JP2025169451APending Publication Date: 2025-11-12KYOCERA CORP
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Patent Information

Application Number
JP2025142696
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2021-10-28
Filing Date
2025-08-28
Publication Date
2025-11-12

AI Technical Summary

Technical Problem

Existing fuel cell stack devices face challenges in optimizing the performance of electrochemical cells due to issues with electrode resistance and gas leakage, which affect power generation efficiency and stability.

Method used

The electrochemical cell design includes a fuel electrode layer composed of a first material with a lower electronegativity than zirconium, combined with a solid electrolyte layer having oxide ion conductivity, and a conductive support substrate to enhance electron and ion conduction, along with a diffusion suppression layer to prevent element diffusion and gas leakage.

Benefits of technology

This configuration reduces electrode resistance, improves power generation performance, and enhances the stability of the electrochemical cell by increasing reaction paths and preventing gas leakage, leading to improved overall cell performance.

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Abstract

To improve cell performance.SOLUTION: An electrochemical cell comprises a first electrode layer, a second electrode layer, and a solid electrolyte layer. The solid electrolyte layer is located between the first electrode layer and the second electrode layer and has oxide ion conductivity. The first electrode layer includes an electron conductive material, and a first material including, as a main component, a first element having a smaller electronegativity than that of zirconium.SELECTED DRAWING: Figure 3
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Citation Information

Patent Citations

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