Enhancing performance of Li-S cells using a Li-Al alloy anode coating

Research output: Contribution to journal › Research article › Contributed › peer-review

Contributors

  • Hyea Kim - , Georgia Institute of Technology, Sila Nanotechnologies, Inc. (Author)
  • Jung Tae Lee - , Georgia Institute of Technology (Author)
  • Dong Chan Lee - , Georgia Institute of Technology (Author)
  • Martin Oschatz - , Chair of Inorganic Chemistry I (Author)
  • Won Il Cho - , Korea Institute of Science and Technology (Author)
  • Stefan Kaskel - , Chair of Inorganic Chemistry I (Author)
  • Gleb Yushin - , Georgia Institute of Technology (Author)

Abstract

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.

Details

Original languageEnglish
Pages (from-to)38-41
Number of pages4
JournalElectrochemistry Communications
Volume2013
Issue number36
Publication statusPublished - 2013
Peer-reviewedYes

Keywords

ASJC Scopus subject areas

Keywords

  • Alloy anode, Aluminum, Cathode dissolution, Li-S battery, Polarization, Sulfur cathode

Library keywords