Abstract A versatile and robust process was developed for the fabrication of ceramic films in solid oxide fuel cells (SOFCs), allowing the microstructures of the films to be tailored from porous to dense. This nanoscale spray process was assisted by electrospray ionization and specific polymer additives such as polyvinyl pyrrolidone and polyvinyl butyral, and it provided a large degree of freedom for controlling the membrane microstructures of the cathode and electrolyte. The final spray-deposition-based SOFC cell, which consisted of a dense, thin electrolyte (thickness: ~4 µm) and a crack-free porous cathode layer (thickness: ~10 µm), exhibited notable reliability, an open-circuit voltage of ~1.11 V (approaching the theoretical value), and a maximum power density of ~805 mW/cm 2 at 650 °C, which is substantially higher than the power-generating performances of previously reported spray-deposition-based SOFCs.

中文翻译：

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通过聚合物辅助电喷雾沉积定制固体氧化物燃料电池的陶瓷膜结构

摘要 开发了一种用于在固体氧化物燃料电池 (SOFC) 中制造陶瓷薄膜的通用且稳健的工艺，使薄膜的微观结构可以从多孔到致密。这种纳米级喷涂工艺在电喷雾电离和特定聚合物添加剂（如聚乙烯吡咯烷酮和聚乙烯醇缩丁醛）的辅助下进行，为控制阴极和电解质的膜微结构提供了很大的自由度。最终的基于喷涂沉积的 SOFC 电池由致密的薄电解质（厚度：~4 µm）和无裂纹多孔阴极层（厚度：~10 µm）组成，表现出显着的可靠性、开路电压~1.11 V（接近理论值），在 650 °C 时最大功率密度为 ~805 mW/cm 2，