Journal
ELECTROCHEMISTRY COMMUNICATIONS
Volume 36, Issue -, Pages 38-41Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2013.09.002
Keywords
Li-S battery; Cathode dissolution; Aluminum; Alloy anode; Polarization; Sulfur cathode
Categories
Funding
- US National Science Foundation (NSF) [0954925]
- Energy Efficiency & Resources program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP)
- Korea government Ministry of Knowledge Economy [20118510010030]
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [0954925] Funding Source: National Science Foundation
- Korea Evaluation Institute of Industrial Technology (KEIT) [20118510010030] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Thin lithium aluminum (Li-Al) alloy layer is formed on the lithium surface in order to mitigate the polysulfide shuttle phenomenon. The effect of curing temperature of the alloy on electrochemical performance is studied. Electrochemical tests show the ability of the alloy layer to stabilize polarization during plating/deplating of Li ions. Li-S cells with the alloy-coated Li anodes show batter rate capability, lower charge transfer resistance, improved cycle stability and higher coulombic efficiency, compared to bare Li anode. (C) 2013 Elsevier B.V. All rights reserved.
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