Single-step ball milling synthesis of highly Li⁺ conductive Li_5.3PS_4.3ClBr_0.7 glass ceramic electrolyte enables low-impedance all-solid-state batteries

Abstract

Single-step ball milling synthesis of a highly conductive glass ceramic solid electrolyte enables a low-impedance all-solid-state battery.

Ionic Conductivity versus Particle Size of Ball‐Milled Sulfide‐Based Solid Electrolytes: Strategy Towards Optimized Composite Cathode Performance in All‐Solid‐State Batteries

“…During the last years, a clear focus of the research community on crystalline argyrodites Li 6 PS 5 X (X = Cl, Br) as sulfide-based SEs could be observed, since these argyrodites are very well conductive, kinetically quite stable towards both Li metal and cathode active materials, and they do not contain any expensive or hazardous elements. [4][5][6][7][8][9][10] Most prominently, Li 6 PS 5 Cl (LPSC) has been utilized, exhibiting an ionic conductivity of about 3 mS/cm. This conductivity is similar to that of Li 6 PS 5 Br, but chloride is the more readily available halogenide.…”

Insights into interfacial chemistry of Ni-rich cathodes and sulphide-based electrolytes in all-solid-state lithium batteries

“…The ionic conductivity can be further improved to 1.7 × 10 −2 S cm −1 by controlling the Cl amount (Li 5.3 PS 4.3 Cl 1.7 ). 51 Multi-halide-element SSEs have been reported recently, 54–57 such as Li 5.3 PS 4.3 ClBr 0.7 , which have remarkably high ionic conductivity (2.4 × 10 −2 S cm −1 ). 56 To date, lithium argyrodite SSEs can deliver a high ionic conductivity of up to 10 −2 S cm −1 , which is meaningful to future applications.…”

Li-Ion Conductivity of Single-Step Synthesized Glassy-Ceramic Li10GeP2S12 and Post-heated Highly Crystalline Li10GeP2S12

“…This work begins by first presenting an alternative synthesis method, which is capable of producing glassy-ceramic Li 10 GeP 2 S 12 via single-step high energy ball milling. While various lithium phosphosulfide-based solid electrolytes have been synthesized via continuous ball milling, none have so far been reported for the lithium superionic conductor Li 10 GeP 2 S 12 . − In this work, stoichiometric ratios of Li 2 S, GeS 2 , and P 2 S 5 were subjected to intensive kinetic collisions via high-energy ball milling. Investigations were then carried out after various continuous milling times utilizing powder X-ray diffraction (XRD).…”