LiS — Properties & Data | MatWorld

LiS

ceramic

· JVASP-8755· LiS

Lithium sulfide (LiS) is an ionic ceramic compound combining lithium and sulfur, belonging to the class of binary metal chalcogenides. While not widely used in conventional engineering, LiS and related lithium-chalcogenide ceramics are of significant research interest for solid-state battery electrolytes, where their ionic conductivity and chemical stability promise higher energy density and safety compared to liquid electrolyte systems. Engineers and materials researchers evaluate LiS primarily in the context of next-generation electrochemical storage and advanced solid-state power systems, though practical engineering deployment remains largely in the development phase.

solid-state battery electrolytesionic conductorsenergy storage researchlithium-ion battery alternativeselectrochemical devicesadvanced ceramics development

Compliance & Regulations

?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	41.30	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3800	-	DFT · OptB88vdW
Shear Modulus(G)	1.020	GPa	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Density(ρ)	2.073	kg/m³	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Filter by

Method

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.000	eV	DFT · OptB88vdW
↳	1.422	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)	3.639	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	33.39	%	DFT · TBmBJ

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.4563	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.6894	eV/atom	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

Regulatory Screening

Environmental

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.

LiS

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental