Abstract
A High-Temperature Metal-Air Battery (HTMAB) that operates based on a simple redox reaction between molten metal and atmospheric oxygen at 600-1000 C is presented. This innovative HTMAB concept combines the technology of conventional metal-air batteries with that of solid oxide fuel cells to provide a high energy density system for many applications. Electrochemical reversibility is demonstrated with 95% coulomb efficiency. Cell sealing has been identified as a key issue in order to determine the end-of-charge voltage, enhance coulomb efficiency and ensure long term stability. In this work, molten Sn is selected as anode material. Low utilization of the stored material due to precipitation of the SnO2 on the electrochemically active area limits the expected capacity, which should theoretically approach 903 mAh g -1. Nevertheless, more than 1000 charge/discharge cycles are performed during more than 1000 h at 800 C, showing highly promising results of stability, reversibility and cyclability.
| Original language | English |
|---|---|
| Pages (from-to) | 749-755 |
| Number of pages | 7 |
| Journal | Journal of Power Sources |
| Volume | 247 |
| DOIs | |
| Publication status | Published - 2014 |
| Externally published | Yes |
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Keywords
- Energy storage
- Liquid metal anode
- Metal-air battery
- Molten tin
- Oxygen ion conductive electrolyte
ASJC Scopus subject areas
- Renewable Energy, Sustainability and the Environment
- Energy Engineering and Power Technology
- Physical and Theoretical Chemistry
- Electrical and Electronic Engineering
Cite this
Performance and stability of a liquid anode high-temperature metal-air battery. / Otaegui, L.; Rodriguez-Martinez, L. M.; Wang, L.; Laresgoiti, A.; Tsukamoto, H.; Han, M. H.; Tsai, C. L.; Laresgoiti, I.; López, C. M.; Rojo, T.
In: Journal of Power Sources, Vol. 247, 2014, p. 749-755.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Performance and stability of a liquid anode high-temperature metal-air battery
AU - Otaegui, L.
AU - Rodriguez-Martinez, L. M.
AU - Wang, L.
AU - Laresgoiti, A.
AU - Tsukamoto, H.
AU - Han, M. H.
AU - Tsai, C. L.
AU - Laresgoiti, I.
AU - López, C. M.
AU - Rojo, T.
PY - 2014
Y1 - 2014
N2 - A High-Temperature Metal-Air Battery (HTMAB) that operates based on a simple redox reaction between molten metal and atmospheric oxygen at 600-1000 C is presented. This innovative HTMAB concept combines the technology of conventional metal-air batteries with that of solid oxide fuel cells to provide a high energy density system for many applications. Electrochemical reversibility is demonstrated with 95% coulomb efficiency. Cell sealing has been identified as a key issue in order to determine the end-of-charge voltage, enhance coulomb efficiency and ensure long term stability. In this work, molten Sn is selected as anode material. Low utilization of the stored material due to precipitation of the SnO2 on the electrochemically active area limits the expected capacity, which should theoretically approach 903 mAh g -1. Nevertheless, more than 1000 charge/discharge cycles are performed during more than 1000 h at 800 C, showing highly promising results of stability, reversibility and cyclability.
AB - A High-Temperature Metal-Air Battery (HTMAB) that operates based on a simple redox reaction between molten metal and atmospheric oxygen at 600-1000 C is presented. This innovative HTMAB concept combines the technology of conventional metal-air batteries with that of solid oxide fuel cells to provide a high energy density system for many applications. Electrochemical reversibility is demonstrated with 95% coulomb efficiency. Cell sealing has been identified as a key issue in order to determine the end-of-charge voltage, enhance coulomb efficiency and ensure long term stability. In this work, molten Sn is selected as anode material. Low utilization of the stored material due to precipitation of the SnO2 on the electrochemically active area limits the expected capacity, which should theoretically approach 903 mAh g -1. Nevertheless, more than 1000 charge/discharge cycles are performed during more than 1000 h at 800 C, showing highly promising results of stability, reversibility and cyclability.
KW - Energy storage
KW - Liquid metal anode
KW - Metal-air battery
KW - Molten tin
KW - Oxygen ion conductive electrolyte
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U2 - 10.1016/j.jpowsour.2013.09.029
DO - 10.1016/j.jpowsour.2013.09.029
M3 - Article
VL - 247
SP - 749
EP - 755
JO - Journal of Power Sources
JF - Journal of Power Sources
SN - 0378-7753
ER -