Large-area anode-supported protonic ceramic fuel cells combining with multilayer-tape casting and hot-pressing lamination technology

• Published in: Journal of the European Ceramic Society 2023-02, Vol.43 (2), p.428-437
• Main Authors: Huang, Zuzhi, Yang, Yang, Lv, Haipeng, Shi, Caixia, Li, Tian, Ling, Yihan, Chen, Ting, Wang, Shaorong
• Format: Article
• Language: English
• Subjects: Hot-pressing lamination; Large-area protonic ceramic fuel cells; Multilayer-tape casting; Power density; Sintering shrinkage and thermal expansion behavior
• ISSN: 0955-2219; 1873-619X
• DOI: 10.1016/j.jeurceramsoc.2022.09.057

Anode-supported protonic ceramic fuel cells (PCFCs) have many advantages such as the excellent performance and durability at lower temperatures. However, the fabrication of large-area PCFCs is still a big challenge. In this work, the anode supported 10 × 10 cm2 PCFCs with BaZr0.1Ce0.7Y0.1Yb0.1O3-δ (BZCYYb) electrolyte are fabricated by an optimized sintering process combining with multilayer-tape casting and hot-pressing lamination technology. Through optimizing the sintering shrinkage and thermal expansion behavior, anode supported large-area PCFCs with dense BZCYYb electrolyte are obtained with optimal sintering process. The maximum power density of the cell using H2 as fuel reaches 400 mW/cm2 at 700 ℃. The cell also shows a good thermal cycling performance and durability in 425 h test. Preliminary experimental results indicate that the fabrication technology with multilayer-tape casting and hot-pressing lamination is successful for large-area PCFCs, which can improve the cell fabrication efficiency and provide positive reference for large-area PCFCs. •Large-area (10 ×10 cm2) PCFCs are successfully fabrication and Characterization.•Thermal shrinkage and expansion behavior is used to optimize the sintering procedures.•The cells show good electrochemical performance fueled in H2 and NH3, respectively.•Good thermal cycling and long-term stability is achieved.