Improvement in thermal cycling durability of SOFCs using LaGa O 3-based electrolyte by inserting convex Sm0.5 Sr 0.5 CoO3 interlayer

Young Wan Ju; Hiroyuki Eto; Toru Inagaki; Shintaro Ida; Tatsumi Ishihara

doi:10.1149/1.3494029

Improvement in thermal cycling durability of SOFCs using LaGa O ₃-based electrolyte by inserting convex Sm_0.5 Sr _0.5 CoO₃ interlayer

Young Wan Ju, Hiroyuki Eto, Toru Inagaki, Shintaro Ida, Tatsumi Ishihara

Research output: Contribution to journal › Article › peer-review

22 Citations (Scopus)

Abstract

Improved thermal cycling durability of a solid oxide fuel cell (SOFC) using a LaGa O₃-based electrolyte was studied by inserting a thin Sm _0.5 Sr_0.5 CoO_3-δ (SSC55) cathode interlayer with a submicron-sized convex. The thin SSC55 interlayer was prepared on a SDC20-LSGM9182 bilayer film by pulsed layer deposition. The resulting maximum power density (MPD) was 1.99 W/cm² at 973 K, and the open circuit voltage was close to the theoretical value. In addition, the thermal cycling tolerance was significantly improved. The decrease in MPD was only 4% over three thermal cycles from 973 to 298 K. The MPD of a cell with no SSC55 interlayer decreased significantly.

Original language	English
Pages (from-to)	B139-B141
Journal	Electrochemical and Solid-State Letters
Volume	13
Issue number	12
DOIs	https://doi.org/10.1149/1.3494029
Publication status	Published - 2010

All Science Journal Classification (ASJC) codes

Chemical Engineering(all)
Materials Science(all)
Physical and Theoretical Chemistry
Electrochemistry
Electrical and Electronic Engineering

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10.1149/1.3494029

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abstract = "Improved thermal cycling durability of a solid oxide fuel cell (SOFC) using a LaGa O3-based electrolyte was studied by inserting a thin Sm 0.5 Sr0.5 CoO3-δ (SSC55) cathode interlayer with a submicron-sized convex. The thin SSC55 interlayer was prepared on a SDC20-LSGM9182 bilayer film by pulsed layer deposition. The resulting maximum power density (MPD) was 1.99 W/cm2 at 973 K, and the open circuit voltage was close to the theoretical value. In addition, the thermal cycling tolerance was significantly improved. The decrease in MPD was only 4% over three thermal cycles from 973 to 298 K. The MPD of a cell with no SSC55 interlayer decreased significantly.",

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T1 - Improvement in thermal cycling durability of SOFCs using LaGa O 3-based electrolyte by inserting convex Sm0.5 Sr 0.5 CoO3 interlayer

AU - Ju, Young Wan

AU - Eto, Hiroyuki

AU - Inagaki, Toru

AU - Ida, Shintaro

AU - Ishihara, Tatsumi

PY - 2010

Y1 - 2010

N2 - Improved thermal cycling durability of a solid oxide fuel cell (SOFC) using a LaGa O3-based electrolyte was studied by inserting a thin Sm 0.5 Sr0.5 CoO3-δ (SSC55) cathode interlayer with a submicron-sized convex. The thin SSC55 interlayer was prepared on a SDC20-LSGM9182 bilayer film by pulsed layer deposition. The resulting maximum power density (MPD) was 1.99 W/cm2 at 973 K, and the open circuit voltage was close to the theoretical value. In addition, the thermal cycling tolerance was significantly improved. The decrease in MPD was only 4% over three thermal cycles from 973 to 298 K. The MPD of a cell with no SSC55 interlayer decreased significantly.

AB - Improved thermal cycling durability of a solid oxide fuel cell (SOFC) using a LaGa O3-based electrolyte was studied by inserting a thin Sm 0.5 Sr0.5 CoO3-δ (SSC55) cathode interlayer with a submicron-sized convex. The thin SSC55 interlayer was prepared on a SDC20-LSGM9182 bilayer film by pulsed layer deposition. The resulting maximum power density (MPD) was 1.99 W/cm2 at 973 K, and the open circuit voltage was close to the theoretical value. In addition, the thermal cycling tolerance was significantly improved. The decrease in MPD was only 4% over three thermal cycles from 973 to 298 K. The MPD of a cell with no SSC55 interlayer decreased significantly.

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Improvement in thermal cycling durability of SOFCs using LaGa O ₃-based electrolyte by inserting convex Sm_0.5 Sr _0.5 CoO₃ interlayer

Abstract

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