Solid electrolyte layer, electrochemical cell, electrochemical cell device, module, and module storage device

The introduction of a structured solid electrolyte layer with specific pore distribution addresses durability issues in fuel cell stack devices, enhancing thermal resistance and power generation efficiency.

WO2025005186A1PCT designated stage expired Publication Date: 2025-01-02KYOCERA CORP
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Patent Information

Application Number
PCT/JP2024/023354
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-06-29
Filing Date
2024-06-27
Publication Date
2025-01-02

AI Technical Summary

Technical Problem

Fuel cell stack devices face challenges in improving durability due to issues related to thermal expansion and contraction, leading to cracking and peeling of the solid electrolyte layer.

Method used

A solid electrolyte layer is designed with a specific structure comprising electrolyte particles containing oxides and pores, where first pores are in contact with the particles and second pores are inside them, reducing the likelihood of cracking and peeling by managing thermal stress.

Benefits of technology

The improved solid electrolyte layer enhances the durability of the fuel cell by minimizing separation at grain boundaries and maintaining ion conductivity, leading to improved power generation performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

This solid electrolyte layer includes: a plurality of electrolyte particles containing an oxide; and a plurality of pores. The plurality of electrolyte particles include first particles and second particles. The plurality of pores include first pores and second pores. The first pores contact the first particles. The second pores are inside the second particles.
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Citation Information

Patent Citations

  • Cell, cell stack device, module, and module-housing device

    JP2015046365A

  • Solid oxide fuel cell, cell stack device, fuel cell module, and fuel cell device

    WO2013031961A1

  • Solid electrolyte made of polycrystalline sintered body

    JP1992170363A

  • Sintered lanthanum gallate, its production and fuel cell produced by using the gallate as solid electrolyte

    JP2000044340A

  • Fuel battery

    JP2004139936A