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Ju, Young-Wan
GUNS Lab
Research Interests
  • Materials Chemistry
  • Nanotechnology
  • Polymer Chemistry

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Discharge performance of solid-state oxygen shuttle metal-air battery using Ca-stabilized ZrO<inf>2</inf> electrolyte

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Title
Discharge performance of solid-state oxygen shuttle metal-air battery using Ca-stabilized ZrO2</inf> electrolyte
Author
Inoishi, AtsushiKim, Hack-HoSakai, TakaaiJu, Young-WanIda, ShintaroIshihara, Tatsumi
Issue Date
2015-04
Publisher
WILEY-V C H VERLAG GMBH
Citation
CHEMSUSCHEM, v.8, no.7, pp.1264 - 1269
Abstract
The effects of metal choice on the electrochemical performance of oxygen-shuttle metal-air batteries with Ca-stabilized ZrO2</inf> (CSZ) as the electrolyte and various metals as the anodes were studied at 1073 K. The equilibrium oxygen partial pressure (PO2</inf>) in the anode chamber was governed by the metal used in the anode chamber. A lower-PO2</inf> environment in the anode decreased the polarization resistance of the anode. The oxidation of oxide ions to oxygen in the anode is drastically enhanced by the n-type conduction generated in the CSZ electrolyte when it is exposed to a reducing atmosphere. A high discharge potential and high capacity can be achieved in an oxygen-shuttle battery with a Li or Mg anode because of the fast anode reaction compared to that of cells with a Zn, Fe, or Sn anode. However, only the mildly reducing metals (Zn, Si, Fe, and Sn) can potentially be used in rechargeable metal-air batteries because the transport number of the CSZ electrolyte must be unity during charge and discharge. Oxygen shuttle rechargeable batteries with Fe, and Sn electrodes are demonstrated. ⓒ 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
URI
https://scholarworks.unist.ac.kr/handle/201301/11504
URL
http://onlinelibrary.wiley.com/doi/10.1002/cssc.201403151/abstract;jsessionid=157BDC2FAA1F46AE601A7D1B118F89EE.f03t02
DOI
10.1002/cssc.201403151
ISSN
1864-5631
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