IONIC CONDUCTOR CONTAINING HIGH-TEMPERATURE PHASE LiCBH, METHOD FOR ITS PRODUCTION AND SOLID ELECTROLYTE FOR FULLY SOLID-STATE BATTERIES CONTAINING THE SPECIFIED IONIC CONDUCTOR Russian patent published in 2023 - IPC H01M10/562 

FIELD: ionic conductors.

SUBSTANCE: group of inventions relates to an ionic conductor containing a high-temperature phase of LiCB9H10 and to a method for its preparation, as well as to a solid electrolyte for completely solid-state batteries containing the specified ionic conductor. The method for producing an ionic conductor containing LiCB₉H₁₀ and LiCB₁₁H₁₂ includes the stage of mixing LiCB₉H₁₀ and LiCB₁₁H₁₂ in a molar ratio of LiCB₉H₁₀/LiCB₁₁H₁₂=1.25 to 10. An ionic conductor containing lithium (Li), carbon (C), boron (B), and hydrogen (H) has X-ray diffraction peaks at at least 2θ=14.9±0.3 deg, 16.4±0.3 deg and 17.1±0.5 deg when measuring X-ray diffraction at 25±C and has an intensity ratio (B/A) of 1.0 to 20 when calculated from A=(X-ray diffraction intensity at 16.4±0.3 deg) - (X-ray diffraction intensity at 20 deg) and B=(X-ray diffraction intensity at 17.1±0.5 deg) - (X-ray diffraction intensity at 20 deg).

EFFECT: improvement of ionic conductivity.

10 cl, 9 dwg, 6 tbl, 2 ex