Li2Fe2SiO6 — Properties & Data | MatWorld

Li2Fe2SiO6

ceramic

· Li2Fe2SiO6

Li2Fe2SiO6 is an iron-lithium silicate ceramic compound of interest primarily in battery and energy storage research. This material belongs to the family of lithium-containing ceramics and is being investigated as a potential cathode or electrolyte component for next-generation lithium-ion batteries, where its combined iron and lithium content offers potential advantages in ionic conductivity, thermal stability, or energy density. While not yet widely deployed in commercial applications, this compound represents part of the broader research effort to develop alternative lithium-based ceramics that could improve battery performance, cycle life, or cost compared to conventional cathode materials.

lithium-ion battery cathodessolid-state electrolytesenergy storage researchthermal barrier coatings (exploratory)ceramic composites for high-temperature applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	2.687	kg/m³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.3290	eV	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	76.33	-	DFT · OptB88vdW
Electron Effective Mass(m*e)	0.05667	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.05667	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	9.948	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)2 entries	1.319	C/m²	DFT · OptB88vdW
↳	0.1287	C/m²	DFT · PBE
Piezoelectric Stress Tensor(eij)	Matrix (redacted)	C/m²	DFT · PBE
Thermoelectric Power Factor(PF)2 entries	0.000180	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000562	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-214.8	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	257.5	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C

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.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.1786	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-1.960	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.

Li2Fe2SiO6

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental