Tae-Hee Lee

TL;DR: In this paper, the authors investigated the transport properties and transference numbers of composite electrolytes and found that the dominant charge carriers are identified quantitatively through the analysis of the partial conductivity of proton, oxygen ions, and electrons.

TL;DR: In this paper, the authors proposed a degradation prevention method to minimize the performance degradation of cell components occurring in the solid oxide fuel cell (SOFC) operation, which can be completely circumvented by the proposed periodical operation logic to prevent performance degradation.

TL;DR: In this article, a superprotonic conductor for operation in the intermediate temperature (IT) range through a doping approach with a conventional proton conductor was proposed, based on the enhanced macroscopic transport properties of the oxide ion conductor.

TL;DR: In this paper, a hybrid electrolyte was fabricated by compositing both proton conductor (BaZr 0.85 Y 0.15 O 3-δ, BZY) and oxygen-ion conductor (Nd 0.1 Ce 0.9 O 2−δ, NDC) for intermediate temperature solid oxide fuel cells (IT-SOFCs).

TL;DR: In this paper, the authors focus on mechanisms and symptoms of several simulated failure modes, which may have significant influences on the long-term durability and operational stability of intermediate temperature solid oxide fuel cells (IT-SOFCs), including fuel/oxidation starvation by breakdown of fuel/air supply components and wet and dry cycling atmospheres.