Mixing effects of Cr2O3-PrBaMn2O5 for increased redox cycling properties of Fe powder for a solid-oxide Fe-air rechargeable battery

Hackho Kim; Shintaro Ida; Young Wan Ju; Junko Matsuda; Guntae Kim; Tatsumi Ishihara

doi:10.1039/c6ta07911c

Mixing effects of Cr₂O₃-PrBaMn₂O₅ for increased redox cycling properties of Fe powder for a solid-oxide Fe-air rechargeable battery

Hackho Kim, Shintaro Ida, Young Wan Ju, Junko Matsuda, Guntae Kim, Tatsumi Ishihara

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

12 Citations (Scopus)

Abstract

Large capacity rechargeable batteries are now strongly required for generating electric power from renewable energy, like solar cells or wind power generators. For this purpose, solid oxide Fe-air rechargeable batteries have been studied. In this study, for increasing the stability of the redox cycling properties of Fe powder at 623 K, mixing effects of Cr₂O₃ and PrBaMn₂O₅ catalysts were investigated and it was found that Fe powder mixed with 3 wt% Cr₂O₃-3 wt% PrBaMn₂O₅ showed excellent stability against redox cycling at 623 K. When Fe powder mixed with Cr₂O₃-PrBaMn₂O₅ was used, stable charge and discharge capacity could be achieved over 50 cycles by using the cell consisting of Ni-Fe/La_0.9Sr_0.1Ga_0.8Mg_0.2O₃/Ba_0.6La_0.4CoO₃. The discharge capacity of the cell achieved was larger than 770 mA h g_Fe^-1 at 623 K. Increased capacity and cycle performance could be assigned to the deep redox degree of Fe powder.

Original language	English
Pages (from-to)	364-371
Number of pages	8
Journal	Journal of Materials Chemistry A
Volume	5
Issue number	1
DOIs	https://doi.org/10.1039/c6ta07911c
Publication status	Published - 2017

All Science Journal Classification (ASJC) codes

Chemistry(all)
Renewable Energy, Sustainability and the Environment
Materials Science(all)

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1039/c6ta07911c

Cite this

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title = "Mixing effects of Cr2O3-PrBaMn2O5 for increased redox cycling properties of Fe powder for a solid-oxide Fe-air rechargeable battery",

abstract = "Large capacity rechargeable batteries are now strongly required for generating electric power from renewable energy, like solar cells or wind power generators. For this purpose, solid oxide Fe-air rechargeable batteries have been studied. In this study, for increasing the stability of the redox cycling properties of Fe powder at 623 K, mixing effects of Cr2O3 and PrBaMn2O5 catalysts were investigated and it was found that Fe powder mixed with 3 wt% Cr2O3-3 wt% PrBaMn2O5 showed excellent stability against redox cycling at 623 K. When Fe powder mixed with Cr2O3-PrBaMn2O5 was used, stable charge and discharge capacity could be achieved over 50 cycles by using the cell consisting of Ni-Fe/La0.9Sr0.1Ga0.8Mg0.2O3/Ba0.6La0.4CoO3. The discharge capacity of the cell achieved was larger than 770 mA h gFe-1 at 623 K. Increased capacity and cycle performance could be assigned to the deep redox degree of Fe powder.",

author = "Hackho Kim and Shintaro Ida and Ju, {Young Wan} and Junko Matsuda and Guntae Kim and Tatsumi Ishihara",

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T1 - Mixing effects of Cr2O3-PrBaMn2O5 for increased redox cycling properties of Fe powder for a solid-oxide Fe-air rechargeable battery

AU - Kim, Hackho

AU - Ida, Shintaro

AU - Ju, Young Wan

AU - Matsuda, Junko

AU - Kim, Guntae

AU - Ishihara, Tatsumi

PY - 2017

Y1 - 2017

N2 - Large capacity rechargeable batteries are now strongly required for generating electric power from renewable energy, like solar cells or wind power generators. For this purpose, solid oxide Fe-air rechargeable batteries have been studied. In this study, for increasing the stability of the redox cycling properties of Fe powder at 623 K, mixing effects of Cr2O3 and PrBaMn2O5 catalysts were investigated and it was found that Fe powder mixed with 3 wt% Cr2O3-3 wt% PrBaMn2O5 showed excellent stability against redox cycling at 623 K. When Fe powder mixed with Cr2O3-PrBaMn2O5 was used, stable charge and discharge capacity could be achieved over 50 cycles by using the cell consisting of Ni-Fe/La0.9Sr0.1Ga0.8Mg0.2O3/Ba0.6La0.4CoO3. The discharge capacity of the cell achieved was larger than 770 mA h gFe-1 at 623 K. Increased capacity and cycle performance could be assigned to the deep redox degree of Fe powder.

AB - Large capacity rechargeable batteries are now strongly required for generating electric power from renewable energy, like solar cells or wind power generators. For this purpose, solid oxide Fe-air rechargeable batteries have been studied. In this study, for increasing the stability of the redox cycling properties of Fe powder at 623 K, mixing effects of Cr2O3 and PrBaMn2O5 catalysts were investigated and it was found that Fe powder mixed with 3 wt% Cr2O3-3 wt% PrBaMn2O5 showed excellent stability against redox cycling at 623 K. When Fe powder mixed with Cr2O3-PrBaMn2O5 was used, stable charge and discharge capacity could be achieved over 50 cycles by using the cell consisting of Ni-Fe/La0.9Sr0.1Ga0.8Mg0.2O3/Ba0.6La0.4CoO3. The discharge capacity of the cell achieved was larger than 770 mA h gFe-1 at 623 K. Increased capacity and cycle performance could be assigned to the deep redox degree of Fe powder.

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