In-situ analysis of the in-plane current distributions in an electrolyte-supported planar solid oxide fuel cell by segmented electrodes

T. Ochiai, Hironori Nakajima, T. Karimata, Tatsumi Kitahara, Kohei Ito, Y. Ogura, J. Shimano

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

In the planar solid oxide fuel cell (SOFC), the fuel/oxidant distributions cause current and temperature distributions over the electrodes under the separator ribs and flow channels. Optimized designs of the separator to improve the output power and chemical/thermo-mechanical durabilities of practical stacks require numerical models validated by in-situ current distributions measured. We have therefore addressed in-situ measurements of in-plane spatial current variations of an electrolyte-supported planar SOFC by segmented cathodes opposing the anode rib and flow channels. We focus on the effect of the rib width on the spatial current distribution. We model the current and hydrogen partial pressure distributions by finite element modeling so that the model agrees with the in-situ measurements by the segmented cathodes with determining the exchange current densities, electrode porosities, electrolyte ion conductivities, and electrode ion/electron conductivities.

Original languageEnglish
Title of host publicationGeneral Student Poster Session
EditorsP. Pharkaya, W. Sugimoto, W.-S. Yoon, V. Chaitanya, K. Sundaram, A. H. Suroviec, V. Subramanian
PublisherElectrochemical Society Inc.
Pages91-98
Number of pages8
Edition52
ISBN (Electronic)9781607685395
DOIs
Publication statusPublished - Jan 1 2016
EventSymposium on General Student Poster Session - PRiME 2016/230th ECS Meeting - Honolulu, United States
Duration: Oct 2 2016Oct 7 2016

Publication series

NameECS Transactions
Number52
Volume75
ISSN (Print)1938-6737
ISSN (Electronic)1938-5862

Other

OtherSymposium on General Student Poster Session - PRiME 2016/230th ECS Meeting
CountryUnited States
CityHonolulu
Period10/2/1610/7/16

Fingerprint

Solid oxide fuel cells (SOFC)
Electrolytes
Channel flow
Separators
Electrodes
Cathodes
Ions
Oxidants
Chemical elements
Pressure distribution
Partial pressure
Numerical models
Ion exchange
Anodes
Durability
Temperature distribution
Current density
Porosity
Hydrogen
Electrons

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Ochiai, T., Nakajima, H., Karimata, T., Kitahara, T., Ito, K., Ogura, Y., & Shimano, J. (2016). In-situ analysis of the in-plane current distributions in an electrolyte-supported planar solid oxide fuel cell by segmented electrodes. In P. Pharkaya, W. Sugimoto, W-S. Yoon, V. Chaitanya, K. Sundaram, A. H. Suroviec, & V. Subramanian (Eds.), General Student Poster Session (52 ed., pp. 91-98). (ECS Transactions; Vol. 75, No. 52). Electrochemical Society Inc.. https://doi.org/10.1149/07552.0091ecst

In-situ analysis of the in-plane current distributions in an electrolyte-supported planar solid oxide fuel cell by segmented electrodes. / Ochiai, T.; Nakajima, Hironori; Karimata, T.; Kitahara, Tatsumi; Ito, Kohei; Ogura, Y.; Shimano, J.

General Student Poster Session. ed. / P. Pharkaya; W. Sugimoto; W.-S. Yoon; V. Chaitanya; K. Sundaram; A. H. Suroviec; V. Subramanian. 52. ed. Electrochemical Society Inc., 2016. p. 91-98 (ECS Transactions; Vol. 75, No. 52).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ochiai, T, Nakajima, H, Karimata, T, Kitahara, T, Ito, K, Ogura, Y & Shimano, J 2016, In-situ analysis of the in-plane current distributions in an electrolyte-supported planar solid oxide fuel cell by segmented electrodes. in P Pharkaya, W Sugimoto, W-S Yoon, V Chaitanya, K Sundaram, AH Suroviec & V Subramanian (eds), General Student Poster Session. 52 edn, ECS Transactions, no. 52, vol. 75, Electrochemical Society Inc., pp. 91-98, Symposium on General Student Poster Session - PRiME 2016/230th ECS Meeting, Honolulu, United States, 10/2/16. https://doi.org/10.1149/07552.0091ecst
Ochiai T, Nakajima H, Karimata T, Kitahara T, Ito K, Ogura Y et al. In-situ analysis of the in-plane current distributions in an electrolyte-supported planar solid oxide fuel cell by segmented electrodes. In Pharkaya P, Sugimoto W, Yoon W-S, Chaitanya V, Sundaram K, Suroviec AH, Subramanian V, editors, General Student Poster Session. 52 ed. Electrochemical Society Inc. 2016. p. 91-98. (ECS Transactions; 52). https://doi.org/10.1149/07552.0091ecst
Ochiai, T. ; Nakajima, Hironori ; Karimata, T. ; Kitahara, Tatsumi ; Ito, Kohei ; Ogura, Y. ; Shimano, J. / In-situ analysis of the in-plane current distributions in an electrolyte-supported planar solid oxide fuel cell by segmented electrodes. General Student Poster Session. editor / P. Pharkaya ; W. Sugimoto ; W.-S. Yoon ; V. Chaitanya ; K. Sundaram ; A. H. Suroviec ; V. Subramanian. 52. ed. Electrochemical Society Inc., 2016. pp. 91-98 (ECS Transactions; 52).
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