LiI

Name: LiI
Brand: MatWorld

ceramic

· LiI

Lithium iodide (LiI) is an ionic ceramic compound belonging to the halide family, characterized by a simple rock-salt crystal structure with high ionic bonding. It is primarily used in solid-state electrolytes for lithium-ion batteries and as a precursor material in laboratory synthesis of advanced battery chemistries, where its ionic conductivity and chemical compatibility with lithium metal make it attractive for next-generation energy storage research. Engineers consider LiI when designing all-solid-state battery systems or studying lithium transport mechanisms, though it faces practical challenges including hygroscopicity and limited commercial deployment compared to oxide-based solid electrolytes.

solid-state battery electrolyteslithium-ion battery developmentionic conductor researchlaboratory synthesis precursorelectrochemistry studies

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	3,234.3	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2300	-	DFT · OptB88vdW
Shear Modulus(G)	2,114.7	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1514	lb/in³	DFT · OptB88vdW

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

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Method

Property	Value	Unit	Conditions
Band Gap(Eg)3 entries	5.620	eV	Measured
↳	4.367	eV	DFT · OptB88vdW
↳	5.560	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)2 entries	15.50	-	DFT · OptB88vdW
↳	9.122 range 4.349–13.89median of 2 measurements	-	DFT · PBEsol
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	3.598	-	DFT · OptB88vdW
↳	3.119	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)2 entries	0.000	C/m²	DFT · OptB88vdW
↳	0.1728	C/m²	DFT · PBE
Piezoelectric Stress Tensor(eij)	Matrix (redacted)	C/m²	DFT · PBE
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	0.000	%	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

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Method

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	0.04500	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)2 entries	-1.289	eV/atom	DFT · OptB88vdW
↳	-1.400	eV/atom	Measured

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

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.

LiI — Properties & Data | MatWorld

LiI

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental