Improvement of Thermal Reliability and Power Density of SOFCs by Preparing Nano LSC Particles between GDC Electrolyte and LSCF Cathode
Year: 2015
Type: conference-paper
Abstract: For enhancement of thermal reliability and reduction of operating temperature of SOFCs, it is effective to increase contact area and to extend triple phase-boundary area (TPB). In this work, we inserted approximately 50 nm LSC particles between the electrolyte and cathode by pulsed laser deposition (PLD). Thermal cycle testing of unit cells with or without LSC were carried out from 200 to 600°C with heating and cooling rates of 400°C h‒ 1. Cathode thin film in the unit cell without LSC delaminated from the electrolyte after only one thermal cycle, whereas cathode thin film in the unit cell with LSC survived 50 cycles. Unit cells with LSC exhibited a maximum power density of 0.53 W cm‒ 2 at 600°C; unit cells without LSC exhibited 0.29 W cm‒ 2 at 600°C. We succeeded in enhancing the thermal reliability and reducing the operating temperature of SOFCs simultaneously by inserting the cathode nanoparticles.
Source: ECS Transactions
Authors: Takehito Mukai, Takahiro Fujita, Shigeki Tsukui, Kenichi Yoshida, Motoaki Adachi, Hiroyuki Iwai, Yosuke Takahashi, Kenneth C Goretta
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2063994262