Influence of reduced substrate shunting current on cell performance in integrated planar solid oxide fuel cells

Keonseok Oh; Joosun Kim; Sun Hee Choi; Daehee Lee; Jooho Moon

doi:10.1016/j.ceramint.2011.07.058

Influence of reduced substrate shunting current on cell performance in integrated planar solid oxide fuel cells

Keonseok Oh, Joosun Kim, Sun Hee Choi, Daehee Lee, Jooho Moon

Department of Materials Science and Engineering

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

8 Citations (Scopus)

Abstract

Two-cell arrayed integrated planar solid oxide fuel cells (IP-SOFCs) were fabricated using a robo-dispensing method. Special emphasis was placed on the influence of reduced shunting current on cell performance. The resistivity of the substrate increased according to a mixture rule of composites by adding Al₂O₃ into the substrate of partially stabilized zirconia (PSZ). This strategy, which reduces shunting current through the substrate, enhances the power output. When the amount of Al₂O₃ added was more than 26 vol%, however, the Ni anode migrated into the PSZ substrate to react with Al₂O₃, which led to performance degradation. In the case of the two-cell arrayed IP-SOFC with a 20 vol%-Al₂O ₃ added to the PSZ substrate, a reduced shunting current loss improved the power density by 30% compared to that of the Al₂O ₃-free substrate.

Original language	English
Pages (from-to)	695-700
Number of pages	6
Journal	Ceramics International
Volume	38
Issue number	1
DOIs	https://doi.org/10.1016/j.ceramint.2011.07.058
Publication status	Published - 2012 Jan

Bibliographical note

Funding Information:
This work was supported by a National Research Foundation of Korea grant funded by the Korean Government (MEST) ( 2009-0093454 ).

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Process Chemistry and Technology
Surfaces, Coatings and Films
Materials Chemistry

Access to Document

10.1016/j.ceramint.2011.07.058

Cite this

@article{ad759df443eb4335b7a6b03d466e8d40,

title = "Influence of reduced substrate shunting current on cell performance in integrated planar solid oxide fuel cells",

abstract = "Two-cell arrayed integrated planar solid oxide fuel cells (IP-SOFCs) were fabricated using a robo-dispensing method. Special emphasis was placed on the influence of reduced shunting current on cell performance. The resistivity of the substrate increased according to a mixture rule of composites by adding Al2O3 into the substrate of partially stabilized zirconia (PSZ). This strategy, which reduces shunting current through the substrate, enhances the power output. When the amount of Al2O3 added was more than 26 vol%, however, the Ni anode migrated into the PSZ substrate to react with Al2O3, which led to performance degradation. In the case of the two-cell arrayed IP-SOFC with a 20 vol%-Al2O 3 added to the PSZ substrate, a reduced shunting current loss improved the power density by 30% compared to that of the Al2O 3-free substrate.",

author = "Keonseok Oh and Joosun Kim and Choi, {Sun Hee} and Daehee Lee and Jooho Moon",

note = "Funding Information: This work was supported by a National Research Foundation of Korea grant funded by the Korean Government (MEST) ( 2009-0093454 ).",

year = "2012",

month = jan,

doi = "10.1016/j.ceramint.2011.07.058",

language = "English",

volume = "38",

pages = "695--700",

journal = "Ceramics International",

issn = "0272-8842",

publisher = "Elsevier Limited",

number = "1",

}

TY - JOUR

T1 - Influence of reduced substrate shunting current on cell performance in integrated planar solid oxide fuel cells

AU - Oh, Keonseok

AU - Kim, Joosun

AU - Choi, Sun Hee

AU - Lee, Daehee

AU - Moon, Jooho

N1 - Funding Information: This work was supported by a National Research Foundation of Korea grant funded by the Korean Government (MEST) ( 2009-0093454 ).

PY - 2012/1

Y1 - 2012/1

N2 - Two-cell arrayed integrated planar solid oxide fuel cells (IP-SOFCs) were fabricated using a robo-dispensing method. Special emphasis was placed on the influence of reduced shunting current on cell performance. The resistivity of the substrate increased according to a mixture rule of composites by adding Al2O3 into the substrate of partially stabilized zirconia (PSZ). This strategy, which reduces shunting current through the substrate, enhances the power output. When the amount of Al2O3 added was more than 26 vol%, however, the Ni anode migrated into the PSZ substrate to react with Al2O3, which led to performance degradation. In the case of the two-cell arrayed IP-SOFC with a 20 vol%-Al2O 3 added to the PSZ substrate, a reduced shunting current loss improved the power density by 30% compared to that of the Al2O 3-free substrate.

AB - Two-cell arrayed integrated planar solid oxide fuel cells (IP-SOFCs) were fabricated using a robo-dispensing method. Special emphasis was placed on the influence of reduced shunting current on cell performance. The resistivity of the substrate increased according to a mixture rule of composites by adding Al2O3 into the substrate of partially stabilized zirconia (PSZ). This strategy, which reduces shunting current through the substrate, enhances the power output. When the amount of Al2O3 added was more than 26 vol%, however, the Ni anode migrated into the PSZ substrate to react with Al2O3, which led to performance degradation. In the case of the two-cell arrayed IP-SOFC with a 20 vol%-Al2O 3 added to the PSZ substrate, a reduced shunting current loss improved the power density by 30% compared to that of the Al2O 3-free substrate.

UR - http://www.scopus.com/inward/record.url?scp=82155197133&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=82155197133&partnerID=8YFLogxK

U2 - 10.1016/j.ceramint.2011.07.058

DO - 10.1016/j.ceramint.2011.07.058

M3 - Article

AN - SCOPUS:82155197133

SN - 0272-8842

VL - 38

SP - 695

EP - 700

JO - Ceramics International

JF - Ceramics International

IS - 1

ER -

Influence of reduced substrate shunting current on cell performance in integrated planar solid oxide fuel cells

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this