Reversible solid-oxide cells for clean and sustainable energy

M. B. Mogensen*, M. Chen, H. L. Frandsen, C. Graves, J. B. Hansen, K. V. Hansen, A. Hauch, T. Jacobsen, S. H. Jensen, T. L. Skafte, X. Sun

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

This review gives first a brief view of the potential availability of sustainable energy. It is clear that over 100 times more solar photovoltaic energy than necessary is readily accessible and that practically available wind alone may deliver sufficient energy supply to the world. Due to the intermittency of these sources, effective and inexpensive energy-conversion and storage technology is needed. Motivation for the possible electrolysis application of reversible solid-oxide cells (RSOCs), including a comparison of power-to-fuel/fuel-to-power to other energy-conversion and storage technologies is presented. RSOC electrochemistry and chemistry of H2O, CO2, H2, CO, CnHm (hydrocarbons) and NH3, including thermodynamics and cell performance, are described. The mechanical strength of popular cell supports is outlined, and newly found stronger materials are mentioned. Common cell-degradation mechanisms, including the effect of common impurities in gases and materials (such as S and Si), plus the deleterious effects of carbon deposition in the fuel electrode are described followed by explanations of how to avoid or ease the consequences. Visions of how RSOCs powered by sustainable energy may be applied on a large scale for the transportation sector via power-to-fuel technology and for integration with the electrical grid together with seasonal storage are presented. Finally, a brief comparison of RSOCs to other electrolysis cells and an outlook with examples of actions necessary to commercialize RSOC applications are sketched.
Original languageEnglish
Article numberzkz023
JournalClean Energy
Volume3
Issue number3
Pages (from-to)175-201
Number of pages27
ISSN2515-4230
DOIs
Publication statusPublished - 2019

Keywords

  • Electrolysis
  • Fuel cells
  • Solid-oxide cells
  • Power-to-fuel
  • Electrochemical syngas

Cite this

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title = "Reversible solid-oxide cells for clean and sustainable energy",
abstract = "This review gives first a brief view of the potential availability of sustainable energy. It is clear that over 100 times more solar photovoltaic energy than necessary is readily accessible and that practically available wind alone may deliver sufficient energy supply to the world. Due to the intermittency of these sources, effective and inexpensive energy-conversion and storage technology is needed. Motivation for the possible electrolysis application of reversible solid-oxide cells (RSOCs), including a comparison of power-to-fuel/fuel-to-power to other energy-conversion and storage technologies is presented. RSOC electrochemistry and chemistry of H2O, CO2, H2, CO, CnHm (hydrocarbons) and NH3, including thermodynamics and cell performance, are described. The mechanical strength of popular cell supports is outlined, and newly found stronger materials are mentioned. Common cell-degradation mechanisms, including the effect of common impurities in gases and materials (such as S and Si), plus the deleterious effects of carbon deposition in the fuel electrode are described followed by explanations of how to avoid or ease the consequences. Visions of how RSOCs powered by sustainable energy may be applied on a large scale for the transportation sector via power-to-fuel technology and for integration with the electrical grid together with seasonal storage are presented. Finally, a brief comparison of RSOCs to other electrolysis cells and an outlook with examples of actions necessary to commercialize RSOC applications are sketched.",
keywords = "Electrolysis, Fuel cells, Solid-oxide cells, Power-to-fuel, Electrochemical syngas",
author = "Mogensen, {M. B.} and M. Chen and Frandsen, {H. L.} and C. Graves and Hansen, {J. B.} and Hansen, {K. V.} and A. Hauch and T. Jacobsen and Jensen, {S. H.} and Skafte, {T. L.} and X. Sun",
year = "2019",
doi = "10.1093/ce/zkz023",
language = "English",
volume = "3",
pages = "175--201",
journal = "Clean Energy",
issn = "2515-4230",
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}

Reversible solid-oxide cells for clean and sustainable energy. / Mogensen, M. B.; Chen, M.; Frandsen, H. L.; Graves, C.; Hansen, J. B.; Hansen, K. V.; Hauch, A.; Jacobsen, T.; Jensen, S. H.; Skafte, T. L.; Sun, X.

In: Clean Energy, Vol. 3, No. 3, zkz023, 2019, p. 175-201.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Reversible solid-oxide cells for clean and sustainable energy

AU - Mogensen, M. B.

AU - Chen, M.

AU - Frandsen, H. L.

AU - Graves, C.

AU - Hansen, J. B.

AU - Hansen, K. V.

AU - Hauch, A.

AU - Jacobsen, T.

AU - Jensen, S. H.

AU - Skafte, T. L.

AU - Sun, X.

PY - 2019

Y1 - 2019

N2 - This review gives first a brief view of the potential availability of sustainable energy. It is clear that over 100 times more solar photovoltaic energy than necessary is readily accessible and that practically available wind alone may deliver sufficient energy supply to the world. Due to the intermittency of these sources, effective and inexpensive energy-conversion and storage technology is needed. Motivation for the possible electrolysis application of reversible solid-oxide cells (RSOCs), including a comparison of power-to-fuel/fuel-to-power to other energy-conversion and storage technologies is presented. RSOC electrochemistry and chemistry of H2O, CO2, H2, CO, CnHm (hydrocarbons) and NH3, including thermodynamics and cell performance, are described. The mechanical strength of popular cell supports is outlined, and newly found stronger materials are mentioned. Common cell-degradation mechanisms, including the effect of common impurities in gases and materials (such as S and Si), plus the deleterious effects of carbon deposition in the fuel electrode are described followed by explanations of how to avoid or ease the consequences. Visions of how RSOCs powered by sustainable energy may be applied on a large scale for the transportation sector via power-to-fuel technology and for integration with the electrical grid together with seasonal storage are presented. Finally, a brief comparison of RSOCs to other electrolysis cells and an outlook with examples of actions necessary to commercialize RSOC applications are sketched.

AB - This review gives first a brief view of the potential availability of sustainable energy. It is clear that over 100 times more solar photovoltaic energy than necessary is readily accessible and that practically available wind alone may deliver sufficient energy supply to the world. Due to the intermittency of these sources, effective and inexpensive energy-conversion and storage technology is needed. Motivation for the possible electrolysis application of reversible solid-oxide cells (RSOCs), including a comparison of power-to-fuel/fuel-to-power to other energy-conversion and storage technologies is presented. RSOC electrochemistry and chemistry of H2O, CO2, H2, CO, CnHm (hydrocarbons) and NH3, including thermodynamics and cell performance, are described. The mechanical strength of popular cell supports is outlined, and newly found stronger materials are mentioned. Common cell-degradation mechanisms, including the effect of common impurities in gases and materials (such as S and Si), plus the deleterious effects of carbon deposition in the fuel electrode are described followed by explanations of how to avoid or ease the consequences. Visions of how RSOCs powered by sustainable energy may be applied on a large scale for the transportation sector via power-to-fuel technology and for integration with the electrical grid together with seasonal storage are presented. Finally, a brief comparison of RSOCs to other electrolysis cells and an outlook with examples of actions necessary to commercialize RSOC applications are sketched.

KW - Electrolysis

KW - Fuel cells

KW - Solid-oxide cells

KW - Power-to-fuel

KW - Electrochemical syngas

U2 - 10.1093/ce/zkz023

DO - 10.1093/ce/zkz023

M3 - Journal article

VL - 3

SP - 175

EP - 201

JO - Clean Energy

JF - Clean Energy

SN - 2515-4230

IS - 3

M1 - zkz023

ER -