Solid electrolyte based on 2-adamantanone for all-solid-state lithium-ion batteries

• DOI: 10.1007/s11581-022-04614-3
• Publication Date: 2022-05-24T20:02:31Z
• Authors: Ingo Bardenhagen; Marc Soto; Frederieke Langer; Katharina Koschek; Julian Schwenzel
• Keywords: Plastic crystal; Fast ion conductor; Electrochemical window; Lithium battery

Abstract Solid-state batteries are considered the next step in battery technology. Materials investigated for application as solid-state electrolytes mainly oxide ceramics, sulfidic (glass-) and polymers. Besides these, another class of solid with promising properties is based on plastic crystals. Especially due to their waxy behavior, they promise good interfaces within a battery. In this work, new crystal, 2-adamantanone, basis electrolyte first time. Its large temperature window from − 95 255 °C its (conductive) state high dipole moment 3.4 D make it material application. The mixture lithium salt was thermally TGA DSC revealing stability range 30 + 80 °C. IR investigations show dissociation conductive salt, which necessary ion conduction. ionic conductivity reaches values up 1.4·10 −4 S/cm at room very low activation energy only 0.32 eV.