A Strategy to Improve the Overall Performance of the Lithium Ion‐Conducting Solid Electrolyte Li_0.36La_0.56□_0.08Ti_0.97Al_0.03O₃

Abstract

A strategy to improve the overall performance of the lithium ion-conducting solid electrolyte (Li-CSE) Li 0.36 La 0.56 ᮀ 0.08 -Ti 0.97 Al 0.03 O 3 (LLTO) is proposed. Thin layers of the electronically insulating, electrochemically stable, and low-melting Li-CSE Li 3.25 Ge 0.25 P 0.75 S 4 (LGPS) were coated onto LLTO powders, which resulted in oxide/sulfide composite electrolytes. The introduction of LGPS simultaneously brought about drastic reductions in the activation energies and great enhancements of the total ionic conductivities of the composite electrolytes. As the LGPS content was increased from 0 mol-% to 20 mol-%, the activation energy decreased stead-

Ceramic and polymeric solid electrolytes for lithium-ion batteries

“…3 [26][27][28][29][30]. Crystalline Li 3.25 Ge 0.25 P 0.75 S 4 has a high conductivity, which is in the same range as those of Li 2 S-P 2 S 5 glass-ceramics, but the conductivities of Li 4.2 Ge 0.8 Ga 0.2 S 4 and Li 2.2 Zn 0.1 Zr 1.9 S 3 , are lower than those of Li 2 S-P 2 S 5 glass-ceramics.…”

Characterization of thin film Li0.5La0.5Ti1−xAlxO3 electrolyte for all-solid-state Li-ion batteries

“…All solid state batteries have attracted much attention to bring solutions for new improvements. Commonly used liquid electrolytes have begun to fail because of some safety concerns like leakage and pollution, although they serve high ionic conductivity at room temperature [2]. On the other side, lithium ion conducting solid electrolytes have received substantial interest because of their significant advantages such as thermal stability, resistance to shocks and vibrations, and miniaturization capability [3].…”