Li2FeO2F — Properties & Data | MatWorld

Li2FeO2F

ceramic

· Li2FeO2F

Li2FeO2F is an experimental lithium iron oxide fluoride ceramic compound, part of the fluoride-oxide hybrid ceramic family attracting research interest for high-energy-density applications. This material is primarily investigated in electrochemical energy storage contexts, particularly as a cathode material candidate for advanced lithium-ion and solid-state battery systems, where the combination of lithium, iron, and fluorine offers potential for improved ionic conductivity, structural stability, and energy density compared to conventional oxide cathodes. Engineers evaluating this compound should note it remains in the research phase rather than established production, making it relevant for development programs targeting next-generation battery chemistries and solid electrolyte interfaces.

cathode material developmentlithium-ion batteriessolid-state battery systemsenergy storage researchadvanced ceramic electrolyteselectrochemical device materials

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	124.4	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3000	-	DFT · OptB88vdW
Shear Modulus(G)	58.10	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	4.128	kg/m³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.00400	eV	DFT · OptB88vdW
↳	0.000	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	417.4	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	25.62	-	DFT · OptB88vdW
Electron Effective Mass(m*e)	0.00333	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.00333	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	2.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)2 entries	3.469	C/m²	DFT · OptB88vdW
↳	0.6973	C/m²	DFT · PBE
Piezoelectric Stress Tensor(eij)	Matrix (redacted)	C/m²	DFT · PBE
Thermoelectric Power Factor(PF)2 entries	0.00000820	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.0000128	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	35.42	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	37.24	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.

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.02470	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-2.231	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.

Li2FeO2F

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental