Abstract

A solid electrolyte membrane is a key part of a solid oxide fuel cell (SOFC). This paper presents the results of our study of the effects of particle size of the starting powders, composition of organic additives in suspension, and process parameters on the quality of three-layer ceramic sheets of solid electrolyte with dimensions of 100 × 100 mm and a thickness of 0.15 mm, made by casting on a moving tape. The inner layer was 10Sc1YSZ (10 mol % Sc₂O₃, 1 mol % Y₂O₃, 89 mol % ZrO₂)—a material with the highest oxygen ion conductivity among zirconia-based solid solutions. 6ScSZ was chosen for the outer layers (6 mol % Sc₂O₃, 94 mol % ZrO₂). The three-layer architecture of the solid electrolyte membranes allows the improvement of the mechanical characteristics while maintaining the required functional properties (primarily, anion conductivity). This study is devoted to optimization of the production technology of these layered membranes by tape casting.

中文翻译：

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基于氧化锆的层状固体电解质膜：生产技术

摘要

固体电解质膜是固体氧化物燃料电池（SOFC）的关键部分。本文介绍了我们对原料粉末的粒径，悬浮液中有机添加剂的组成以及工艺参数对尺寸为100×100 mm的固体电解质三层陶瓷片质量的影响的研究结果。厚度为0.15毫米，通过浇铸在移动的胶带上制成。内层是10Sc1YSZ（10摩尔％钪₂ ö ₃，1摩尔％Y ₂ ö ₃，89摩尔％的ZrO ₂）与氧化锆系固溶体中的最高氧离子传导率-a材料。6ScSZ被选定为外层（6摩尔％钪₂ ö ₃，94摩尔％的ZrO ₂）。固体电解质膜的三层结构允许在保持所需功能特性（主要是阴离子导电性）的同时改善机械特性。这项研究致力于通过流延铸造优化这些层状膜的生产技术。