Glasses and Glass-Ceramics for Solid-State Battery Applications

New synthesis route for glasses and glass-ceramics in the Ga2S3Na2S binary system

“…Indeed, sulfur electrolytes have a lower Young's modulus than their oxide counterparts and their increased elasticity participates in maintaining solid-solid contact at the interfaces during variations in electrode volume during chargedischarge cycles 17 . In addition, inorganic vitreous materials, and more specifically sulfur-based glasses, have several advantages such as non-flammability, single ion conduction, and an ionic conductivity generally higher than the one of the corresponding crystal 18 .…”

Mechanical vs. chemical stability of sulphide-based solid-state batteries. Which one is the biggest challenge to tackle? Overview of solid-state batteries and hybrid solid state batteries

“…Solid state batteries are believed to be the next breakthrough technology in term of energy storage system owing to their safety and energy density (if successfully coupled to Li metal). [1][2][3][4] Several families of solid electrolytes (SE) are reported in the literature among them the oxide, the thiophosphates, the polymers, the sulphides and many others as reported in the very recent review of Ohno et al 5 . To date, the most investigated ones rely on amorphous glass (mostly Li-P-S based) and the one relaying on ceramic (Li-La-Zr-O based).…”

Recent Developments in the Field of Sulfide Ceramic Solid‐State Electrolytes

“…The materials obtained by glass crystallization (hereinafter referred to as glass‐ceramics) comprise the precipitated crystallites with glassy shells; the crystallites often have a metastable structure with high Li + conductivity while the amorphous shells secure high inter‐grain conductivity. [ 14–16 ]…”

“…The materials obtained by glass crystallization (hereinafter referred to as glass-ceramics) comprise the precipitated crystallites with glassy shells; the crystallites often have a metastable structure with high Li þ conductivity while the amorphous shells secure high intergrain conductivity. [14][15][16] The crystalline thiophosphates in the Li-S-P system are shown in Figure 3; these are Li 2 P 2 S 6 , Li 4 P 2 S 6 , Li 7 P 3 S 11 , Li 3 PS 4 , and Li 7 PS 6 . [7] Whereas σ RT of Li 2 P 2 S 6 is %8 Â 10 À11 S cm À1 [17] and σ RT of Li 4 P 2 S 6 is %1.6 Â 10 À10 S cm À1 [18] that are both impractically low, Li 7 P 3 S 11 is a good Li þ -ion conductor.…”