Aarhus University Seal

Enhanced Electrochemical Performance of the Li2B12H12-Li2B10H10-LiBH4 Electrolyte

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review


  • Chongyang Zhou, Wuhan University of Technology
  • ,
  • Yigang Yan, Sichuan University
  • ,
  • Torben R. Jensen

High interfacial compatibility between electrolytes and electrodes is of great importance for the stable operation of all-solid-state batteries (ASSBs). Here, we report that the introduction of LiBH4 into Li2B12H12-5Li2B10H10 improves the electrochemical window to ∼3.0 V and Li-ion conductivity to 1.0 × 10-4 S cm-1 at room temperature (RT). Moreover, the Li2B12H12-5Li2B10H10-6LiBH4 electrolyte exhibits good compatibility with a metallic Li anode and TiS2 cathode, allowing the stable operation of the all-solid-state In1.3Li0.3||TiS2 cell for 120 cycles at 0.1 C and RT, with 117.8 mAh g-1 of capacity and ∼100% of the coulombic efficiency. This work illustrates that a hydroborate electrolyte with high ionic conductivity and large electrochemical stability can enable the development of an ASSB with a voltage up to 2.7 V.

Original languageEnglish
JournalACS Applied Energy Materials
Pages (from-to)7346–7352
Number of pages7
Publication statusPublished - Jul 2023

    Research areas

  • electrochemical stability, hydroborates, interfacial compatibility, Li-ion conductivity, solid-state lithium batteries

See relations at Aarhus University Citationformats

ID: 335435668