All-solid-state lithium-sulfur battery based on a nanoconfined LiBH4 electrolyte

Supti Das, Peter Ngene, Poul Norby, Tejs Vegge, Petra E. De Jongh, Didier Blanchard

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In this work we characterize all-solid-state lithium-sulfur batteries based on nano-confined LiBH4 in mesoporous silica as solid electrolytes. The nano-confined LiBH4 has fast ionic lithium conductivity at room temperature, 0.1 mScm-1, negligible electronic conductivity and its cationic transport number (t+ = 0.96), close to unity, demonstrates a purely cationic conductor. The electrolyte has an excellent stability against lithium metal. The behavior of the batteries is studied by cyclic voltammetry and repeated charge/discharge cycles in galvanostatic conditions. The batteries show very good performance, delivering high capacities versus sulfur mass, typically 1220 mAhg-1 after 40 cycles at moderate temperature (55°C), 0.03 C rates and working voltage of 2 V.
Original languageEnglish
JournalJournal of the Electrochemical Society
Issue number9
Pages (from-to)A2029-A2034
Number of pages6
Publication statusPublished - 2016

Bibliographical note

This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 License (CC BY,, which permits unrestricted reuse of the work in any medium, provided the original work is properly cited.


  • All-solid-state battery
  • Battery
  • Fast ionic conductor
  • Lithium sulfur battery
  • Solid-electrolyte


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