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Hwang, Soo Min
School of Energy and Chemical Engineering
Research Interests
  • Chemical Synthesis
  • Energy Conversion/Storage Devices

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Rechargeable aqueous Na-air batteries: Highly improved voltage efficiency by use of catalysts

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Title
Rechargeable aqueous Na-air batteries: Highly improved voltage efficiency by use of catalysts
Author
Sahgong, Sun HyeSenthilkumar, S.T.Kim, KyounghoHwang, Soo MinKim, Youngsik
Issue Date
2015-12
Publisher
ELSEVIER SCIENCE INC
Citation
ELECTROCHEMISTRY COMMUNICATIONS, v.61, pp.53 - 66
Abstract
The first rechargeable aqueous Na-air battery has been fabricated, and its electrochemical properties and reversibility are reported herein. The charge-discharge properties of the battery were tested using both Vulcan XC72R- and Pt/C-coated carbon paper as the air electrode. Pt/C-coated carbon paper exhibited a voltage efficiency of 84.3%, whereas, for Vulcan XC72R-coated carbon paper and uncoated carbon paper, the observed efficiencies were 78.0% and 72.4%, respectively. Use of Pt/C-coated carbon paper led to a high and stable discharging voltage of 2.85 V. The reported rechargeable aqueous Na-air battery is a potential candidate for high energy density batteries in the future.
URI
https://scholarworks.unist.ac.kr/handle/201301/17842
URL
http://www.sciencedirect.com/science/article/pii/S1388248115002763
DOI
10.1016/j.elecom.2015.10.004
ISSN
1388-2481
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