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Title: Dynamic-temperature operation of metal-supported solid oxide fuel cells

Abstract

A dynamic-temperature operation strategy is proposed for SOFC systems, in which the cell temperature varies rapidly to match the SOFC stack power output to a dynamic load requirement. It is anticipated that this operation strategy may have benefits for system efficiency, size, and cost for applications with dynamic power load. Metal-supported SOFCs (MS-SOFCs) are operated continuously at 0.7 V while the temperature is varied rapidly between 675 and 800 °C or 670 and 720 °C. During the initial thermal excursion, the current density increases from 0.82 to 1.95 A cm -2 in 6.6 min for 675–800 °C, and from 1.0 to 1.63 A cm -2 in 5.4 min for 670–720 °C. In conclusion, cells are subjected to continuous dynamic temperature operation for more than 100 cycles.

Authors:
ORCiD logo [1]
  1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Advanced Research Projects Agency - Energy (ARPA-E)
OSTI Identifier:
1460345
Alternate Identifier(s):
OSTI ID: 1495300; OSTI ID: 1572092
Grant/Contract Number:  
AC02-05CH11231; 13/CJ000/04/03
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Power Sources
Additional Journal Information:
Journal Volume: 395; Journal Issue: C; Related Information: © 2018 Elsevier B.V.; Journal ID: ISSN 0378-7753
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; Metal-supported; SOFC; Dynamic temperature; Thermal cycling

Citation Formats

Tucker, Michael C. Dynamic-temperature operation of metal-supported solid oxide fuel cells. United States: N. p., 2018. Web. doi:10.1016/j.jpowsour.2018.05.094.
Tucker, Michael C. Dynamic-temperature operation of metal-supported solid oxide fuel cells. United States. doi:10.1016/j.jpowsour.2018.05.094.
Tucker, Michael C. Fri . "Dynamic-temperature operation of metal-supported solid oxide fuel cells". United States. doi:10.1016/j.jpowsour.2018.05.094. https://www.osti.gov/servlets/purl/1460345.
@article{osti_1460345,
title = {Dynamic-temperature operation of metal-supported solid oxide fuel cells},
author = {Tucker, Michael C.},
abstractNote = {A dynamic-temperature operation strategy is proposed for SOFC systems, in which the cell temperature varies rapidly to match the SOFC stack power output to a dynamic load requirement. It is anticipated that this operation strategy may have benefits for system efficiency, size, and cost for applications with dynamic power load. Metal-supported SOFCs (MS-SOFCs) are operated continuously at 0.7 V while the temperature is varied rapidly between 675 and 800 °C or 670 and 720 °C. During the initial thermal excursion, the current density increases from 0.82 to 1.95 A cm-2 in 6.6 min for 675–800 °C, and from 1.0 to 1.63 A cm-2 in 5.4 min for 670–720 °C. In conclusion, cells are subjected to continuous dynamic temperature operation for more than 100 cycles.},
doi = {10.1016/j.jpowsour.2018.05.094},
journal = {Journal of Power Sources},
number = C,
volume = 395,
place = {United States},
year = {2018},
month = {6}
}

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