Thermally robust thin-film SOFCs for mobile application

Abstract

Micro-solid oxide fuel cells (SOFCs) is newly designed and fabricated using porous stainless-steel (STS) as a support. The thin-film components with nano-porous electrodes and dense electrolyte, i.e., La0.7Sr0.3CoO3-delta (LSC, similar to 1 mu m) | 8YSZ (similar to 1 mu m) | Ni-8YSZ (similar to 1 mu m), are deposited by using pulsed laser deposition (PLD) method and show the high power density (similar to 560 mW/cm(2) at 550 degrees C). In addition, thermal cycling characteristic, tested for the first time, show that the cells cycled between 100 and 550 degrees C with 100 degrees C/min rate exhibit little performance drop. These results strongly demonstrate the cell for portable mobile application.