特集
ナノ構造制御による高出力固体電解質燃料電池の開発
2012 年 37 巻 2 号 p. 95-100
詳細
2012 年 37 巻 2 号 p. 95-100
Development of solid oxide fuel cells (SOFCs) using LaGaO3 based oxide thin film was introduced. Preparation of LaGaO3 electrolyte film was studied by using two methods; one is conventional screen printing method followed by sintering, and the other is pulsed laser deposition (PLD) method. In case of conventional wet process, by using Ti sintering agent for La doped Ce02 as a buffer layer between LaGaO2 and NiO, sintering of La doped Ce02 was achieved at 1300℃.The cell prepared by wet process shows reasonable power density of ca. 1.0W/cm2 at 700℃. On the other hand, porous Ni-Fe bimetal substrate was successfully obtained by PLD method. Introduction of Sm0.5Sr0.5Co03/Ce0.8Sm0.202 double columnar is effective for high power density of SOFC and the maximum power density of 2.2 and 0.15 W/cm2 were achieved at 700 and 400℃, respectively.
