Sm(Sr)CoO3 cone cathode on LaGaO3 thin film electrolyte for IT-SOFC with high power density

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

doi:10.1149/1.3592427

Sm(Sr)CoO₃ cone cathode on LaGaO₃ thin film electrolyte for IT-SOFC with high power density

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

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

25 Citations (Scopus)

Abstract

Cone-shaped Sm_0.5Sr_0.5CoO_3- (SSC) layer was fabricated by a pulsed laser deposition (PLD) method on the Sm _0.2Ce_0.8O_2- (SDC)/La_0.9Sr _0.1Ga_0.8Mg_0.2O_3- (LSGM) bi-layer electrolyte film for metallic anode supported intermediate temperature solid oxide fuel cells. Effect of SSC layer on the power generation property and optimum fabrication condition of SSC layer has been investigated. By inserting SSC layer, power generation property and thermal cycling durability was improved due to increased contact strength and expanded oxygen ion conduction pathway. Especially, the cell having 500 nm thickness SSC layer showed higher power density than that of the cell without SSC layer. The maximum power density (MPD) of the cell was 1.99, 1.10 and 0.53 W/cm² at 973, 873 and 773 K, respectively. In addition, after third thermal cycling from 973 to 298 K (decreasing and increasing rate; 200 K/h), the decrease in MPD was only 6. The cell also showed a stable power generating performance under a constant current condition.

Original language	English
Pages (from-to)	B825-B830
Journal	Journal of the Electrochemical Society
Volume	158
Issue number	7
DOIs	https://doi.org/10.1149/1.3592427
Publication status	Published - 2011

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Renewable Energy, Sustainability and the Environment
Surfaces, Coatings and Films
Electrochemistry
Materials Chemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1149/1.3592427

Cite this

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title = "Sm(Sr)CoO3 cone cathode on LaGaO3 thin film electrolyte for IT-SOFC with high power density",

abstract = "Cone-shaped Sm0.5Sr0.5CoO3- (SSC) layer was fabricated by a pulsed laser deposition (PLD) method on the Sm 0.2Ce0.8O2- (SDC)/La0.9Sr 0.1Ga0.8Mg0.2O3- (LSGM) bi-layer electrolyte film for metallic anode supported intermediate temperature solid oxide fuel cells. Effect of SSC layer on the power generation property and optimum fabrication condition of SSC layer has been investigated. By inserting SSC layer, power generation property and thermal cycling durability was improved due to increased contact strength and expanded oxygen ion conduction pathway. Especially, the cell having 500 nm thickness SSC layer showed higher power density than that of the cell without SSC layer. The maximum power density (MPD) of the cell was 1.99, 1.10 and 0.53 W/cm2 at 973, 873 and 773 K, respectively. In addition, after third thermal cycling from 973 to 298 K (decreasing and increasing rate; 200 K/h), the decrease in MPD was only 6. The cell also showed a stable power generating performance under a constant current condition.",

author = "Ju, {Young Wan} and Toru Inagaki and Shintaro Ida and Tatsumi Ishihara",

year = "2011",

doi = "10.1149/1.3592427",

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T1 - Sm(Sr)CoO3 cone cathode on LaGaO3 thin film electrolyte for IT-SOFC with high power density

AU - Ju, Young Wan

AU - Inagaki, Toru

AU - Ida, Shintaro

AU - Ishihara, Tatsumi

PY - 2011

Y1 - 2011

N2 - Cone-shaped Sm0.5Sr0.5CoO3- (SSC) layer was fabricated by a pulsed laser deposition (PLD) method on the Sm 0.2Ce0.8O2- (SDC)/La0.9Sr 0.1Ga0.8Mg0.2O3- (LSGM) bi-layer electrolyte film for metallic anode supported intermediate temperature solid oxide fuel cells. Effect of SSC layer on the power generation property and optimum fabrication condition of SSC layer has been investigated. By inserting SSC layer, power generation property and thermal cycling durability was improved due to increased contact strength and expanded oxygen ion conduction pathway. Especially, the cell having 500 nm thickness SSC layer showed higher power density than that of the cell without SSC layer. The maximum power density (MPD) of the cell was 1.99, 1.10 and 0.53 W/cm2 at 973, 873 and 773 K, respectively. In addition, after third thermal cycling from 973 to 298 K (decreasing and increasing rate; 200 K/h), the decrease in MPD was only 6. The cell also showed a stable power generating performance under a constant current condition.

AB - Cone-shaped Sm0.5Sr0.5CoO3- (SSC) layer was fabricated by a pulsed laser deposition (PLD) method on the Sm 0.2Ce0.8O2- (SDC)/La0.9Sr 0.1Ga0.8Mg0.2O3- (LSGM) bi-layer electrolyte film for metallic anode supported intermediate temperature solid oxide fuel cells. Effect of SSC layer on the power generation property and optimum fabrication condition of SSC layer has been investigated. By inserting SSC layer, power generation property and thermal cycling durability was improved due to increased contact strength and expanded oxygen ion conduction pathway. Especially, the cell having 500 nm thickness SSC layer showed higher power density than that of the cell without SSC layer. The maximum power density (MPD) of the cell was 1.99, 1.10 and 0.53 W/cm2 at 973, 873 and 773 K, respectively. In addition, after third thermal cycling from 973 to 298 K (decreasing and increasing rate; 200 K/h), the decrease in MPD was only 6. The cell also showed a stable power generating performance under a constant current condition.

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