Journal Article

FZJ-2016-07154

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Calcium-Iron Oxide as Energy Storage Medium in Rechargeable Oxide Batteries

Berger, C. (Corresponding author)FZJ* ; Mahmoud, A.FZJ* ; Hermann, R.FZJ* ; Braun, W.FZJ* ; Yazhenskikh, E.FZJ* ; Sohn, Y. J.FZJ* ; Menzler, N. H.FZJ* ; Guillon, O.FZJ* ; Bram, M.FZJ*

2016
Wiley-Blackwell Oxford [u.a.]

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Please use a persistent id in citations: doi:10.1111/jace.14439

Abstract: Rechargeable oxide batteries (ROB) comprise a regenerative solid oxide cell (rSOC) and a storage medium for oxygen ions. A sealed ROB avoids pumping loss, heat loss, and gas purity expenses in comparison with conventional rSOC. However, the iron oxide base storage medium degrades during charging–discharging cycles. In comparison, CaFe3O5 has improved cyclability and a high reversible oxygen storage capacity of 22.3 mol%. In this study, we analyzed the redox mechanism of this compound. After a solid-state synthesis of CaFe3O5, we verified the phase composition and studied the redox reaction by means of X-ray diffraction, Mössbauer spectrometry, and scanning electron microscopy. Results show a great potential to operate the battery with this storage material during multiple charging–discharging cycles.

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Contributing Institute(s):

1. Werkstoffsynthese und Herstellungsverfahren (IEK-1)
2. Streumethoden (JCNS-2)
3. Werkstoffstruktur und -eigenschaften (IEK-2)
4. Streumethoden (PGI-4)
5. JARA-ENERGY (JARA-ENERGY)
6. JARA-FIT (JARA-FIT)

Research Program(s):

1. 135 - Fuel Cells (POF3-135) (POF3-135)
2. SOFC - Solid Oxide Fuel Cell (SOFC-20140602) (SOFC-20140602)
3. 144 - Controlling Collective States (POF3-144) (POF3-144)
4. 524 - Controlling Collective States (POF3-524) (POF3-524)
5. 6212 - Quantum Condensed Matter: Magnetism, Superconductivity (POF3-621) (POF3-621)
6. 6213 - Materials and Processes for Energy and Transport Technologies (POF3-621) (POF3-621)
7. 6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623) (POF3-623)
8. HITEC - Helmholtz Interdisciplinary Doctoral Training in Energy and Climate Research (HITEC) (HITEC-20170406) (HITEC-20170406)

Appears in the scientific report 2016

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Database coverage:
; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF < 5 ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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