Bi-layer perovskite SOFC interconnect

Conductivity peak at 550°C

An LST/LSM bi-layer ceramic interconnect whose LSM layer thickness is optimized to tune interfacial oxygen partial pressure, achieving peak conductivity at 550°C and enabling stable operation of tubular segmented-in-series SOFC stacks in both reducing and oxidizing atmospheres.

Rui, Shi · Yan′an, Li · Gao, Jiutao · Ziyang, Chen · Zhang, Xin · Zhang, Shanlin · Babar, Zaheer Ud Din · Cheng-Xin, Li

Journal of Rare Earths 2025

Specifications

Optimal conductivity
{'zh': '约15', 'en': '~15'} μm LST

Advantages

Conductivity peaks at 550°C

Favorable interfacial bonding and excellent chemical compatibility