Abstract
A mixed aqueous/aprotic Na-air cell that works at room temperature has been fabricated and its discharge properties have been examined experimentally as a primary cell. A dense Na3Zr2Si2PO12 ceramic with an ionic conductivity of 1.3 × 10-3 S·Ecm-1 at 25°C and a porous electrode containing Mn3O4 catalyzed carbon are used as a solid electrolyte separator and an air electrode, respectively. This cell gives a maximum output power density of 21 mW·Ecm-2 at 25°C, which is one of the best results among alkali metal-air cells reported to date. Electrochemical impedance spectroscopy reveals that a reduction in ohmic resistivity of the ceramic separator is now crucial for a further increase in power density.
| Original language | English |
|---|---|
| Pages (from-to) | A1215-A1219 |
| Journal | Journal of the Electrochemical Society |
| Volume | 162 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - Jan 1 2015 |
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All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Renewable Energy, Sustainability and the Environment
- Surfaces, Coatings and Films
- Electrochemistry
- Materials Chemistry
Cite this
A high-energy-density mixed-aprotic-aqueous sodium-air cell with a ceramic separator and a porous carbon electrode. / Liang, Feng; Hayashi, Katsuro.
In: Journal of the Electrochemical Society, Vol. 162, No. 7, 01.01.2015, p. A1215-A1219.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - A high-energy-density mixed-aprotic-aqueous sodium-air cell with a ceramic separator and a porous carbon electrode
AU - Liang, Feng
AU - Hayashi, Katsuro
PY - 2015/1/1
Y1 - 2015/1/1
N2 - A mixed aqueous/aprotic Na-air cell that works at room temperature has been fabricated and its discharge properties have been examined experimentally as a primary cell. A dense Na3Zr2Si2PO12 ceramic with an ionic conductivity of 1.3 × 10-3 S·Ecm-1 at 25°C and a porous electrode containing Mn3O4 catalyzed carbon are used as a solid electrolyte separator and an air electrode, respectively. This cell gives a maximum output power density of 21 mW·Ecm-2 at 25°C, which is one of the best results among alkali metal-air cells reported to date. Electrochemical impedance spectroscopy reveals that a reduction in ohmic resistivity of the ceramic separator is now crucial for a further increase in power density.
AB - A mixed aqueous/aprotic Na-air cell that works at room temperature has been fabricated and its discharge properties have been examined experimentally as a primary cell. A dense Na3Zr2Si2PO12 ceramic with an ionic conductivity of 1.3 × 10-3 S·Ecm-1 at 25°C and a porous electrode containing Mn3O4 catalyzed carbon are used as a solid electrolyte separator and an air electrode, respectively. This cell gives a maximum output power density of 21 mW·Ecm-2 at 25°C, which is one of the best results among alkali metal-air cells reported to date. Electrochemical impedance spectroscopy reveals that a reduction in ohmic resistivity of the ceramic separator is now crucial for a further increase in power density.
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UR - http://www.scopus.com/inward/citedby.url?scp=84929472398&partnerID=8YFLogxK
U2 - 10.1149/2.0421507jes
DO - 10.1149/2.0421507jes
M3 - Article
VL - 162
SP - A1215-A1219
JO - Journal of the Electrochemical Society
JF - Journal of the Electrochemical Society
SN - 0013-4651
IS - 7
ER -