A novel U-shaped anode-supported hollow fiber solid oxide fuel cell with considerable thermal cycling performance and stability

► A novel U-shaped anode-supported hollow fiber solid oxide fuel cell was prepared. ► The maximum power density was 884 mW cm−2 at 750 °C. ►The U-shaped cell showed excellent thermal cycling performance with 65 cycles. ► The cell performed additional 100 h of stability at 600 °C after the cycles.