抄録
The effects of Ce0.6Mn0.3Fe0.1O2 (CMF) mixed with Fe for increasing redox properties were investigated in this study, and it was found that the reaction rate constant of Fe oxidation and reduction can be much increased through mixing with CMF. At 673 K, the oxidation rate constant of the Fe powder was higher than that of Fe without added CMF by an order of magnitude and the oxidation degree of the Fe is also increased from 10 to 80% at the initial time. When CMF mixed with Fe was set into the fuel chamber of a solid state Fe-air rechargeable battery, Ni-Fe/La0.9Sr0.1Ga0.8Mg0.2O3/Ba0.6La0.4CoO3, a discharge potential of ca. 1 V and a discharge capacity of 600 mA h gFe-1 was achieved at 673 K which is similar to the operating temperature of Na-S batteries. A stable discharge capacity was sustained over 20 cycles. In addition, the observed energy density of the present cell, 600 W h kgFe-1, was larger than that of the Na-S battery by 5 times and that of the redox flow battery by 30 times, and the efficiency of charging and discharging is almost the same. Since the Fe-air rechargeable battery is highly safe and environmentally compatible, it is promising for use as a stationary large capacity rechargeable battery, as an alternative to Na-S or redox flow batteries.
| 元の言語 | 英語 |
|---|---|
| ページ（範囲） | 5482-5488 |
| ページ数 | 7 |
| ジャーナル | Journal of Materials Chemistry A |
| 巻 | 4 |
| 発行部数 | 15 |
| DOI | |
| 出版物ステータス | 出版済み - 4 21 2016 |
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All Science Journal Classification (ASJC) codes
- Chemistry(all)
- Renewable Energy, Sustainability and the Environment
- Materials Science(all)
これを引用
Solid-oxide Fe-air rechargeable battery using Fe-Ce(Mn, Fe)O2 for low temperature operation. / Kim, H.; Inoishi, A.; Ida, S.; Ishihara, T.
：: Journal of Materials Chemistry A, 巻 4, 番号 15, 21.04.2016, p. 5482-5488.研究成果: ジャーナルへの寄稿 › 記事
}
TY - JOUR
T1 - Solid-oxide Fe-air rechargeable battery using Fe-Ce(Mn, Fe)O2 for low temperature operation
AU - Kim, H.
AU - Inoishi, A.
AU - Ida, S.
AU - Ishihara, T.
PY - 2016/4/21
Y1 - 2016/4/21
N2 - The effects of Ce0.6Mn0.3Fe0.1O2 (CMF) mixed with Fe for increasing redox properties were investigated in this study, and it was found that the reaction rate constant of Fe oxidation and reduction can be much increased through mixing with CMF. At 673 K, the oxidation rate constant of the Fe powder was higher than that of Fe without added CMF by an order of magnitude and the oxidation degree of the Fe is also increased from 10 to 80% at the initial time. When CMF mixed with Fe was set into the fuel chamber of a solid state Fe-air rechargeable battery, Ni-Fe/La0.9Sr0.1Ga0.8Mg0.2O3/Ba0.6La0.4CoO3, a discharge potential of ca. 1 V and a discharge capacity of 600 mA h gFe-1 was achieved at 673 K which is similar to the operating temperature of Na-S batteries. A stable discharge capacity was sustained over 20 cycles. In addition, the observed energy density of the present cell, 600 W h kgFe-1, was larger than that of the Na-S battery by 5 times and that of the redox flow battery by 30 times, and the efficiency of charging and discharging is almost the same. Since the Fe-air rechargeable battery is highly safe and environmentally compatible, it is promising for use as a stationary large capacity rechargeable battery, as an alternative to Na-S or redox flow batteries.
AB - The effects of Ce0.6Mn0.3Fe0.1O2 (CMF) mixed with Fe for increasing redox properties were investigated in this study, and it was found that the reaction rate constant of Fe oxidation and reduction can be much increased through mixing with CMF. At 673 K, the oxidation rate constant of the Fe powder was higher than that of Fe without added CMF by an order of magnitude and the oxidation degree of the Fe is also increased from 10 to 80% at the initial time. When CMF mixed with Fe was set into the fuel chamber of a solid state Fe-air rechargeable battery, Ni-Fe/La0.9Sr0.1Ga0.8Mg0.2O3/Ba0.6La0.4CoO3, a discharge potential of ca. 1 V and a discharge capacity of 600 mA h gFe-1 was achieved at 673 K which is similar to the operating temperature of Na-S batteries. A stable discharge capacity was sustained over 20 cycles. In addition, the observed energy density of the present cell, 600 W h kgFe-1, was larger than that of the Na-S battery by 5 times and that of the redox flow battery by 30 times, and the efficiency of charging and discharging is almost the same. Since the Fe-air rechargeable battery is highly safe and environmentally compatible, it is promising for use as a stationary large capacity rechargeable battery, as an alternative to Na-S or redox flow batteries.
UR - http://www.scopus.com/inward/record.url?scp=84967106000&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84967106000&partnerID=8YFLogxK
U2 - 10.1039/c5ta10675c
DO - 10.1039/c5ta10675c
M3 - Article
AN - SCOPUS:84967106000
VL - 4
SP - 5482
EP - 5488
JO - Journal of Materials Chemistry A
JF - Journal of Materials Chemistry A
SN - 2050-7488
IS - 15
ER -