Li4Fe2SiO7 — Properties & Data | MatWorld

Li4Fe2SiO7

ceramic

· JVASP-48246· Li4Fe2SiO7

Li4Fe2SiO7 is an iron-lithium silicate ceramic compound under investigation as a potential lithium-ion battery cathode material and solid-state electrolyte component. This compound belongs to the family of lithium iron silicates, which are being explored in energy storage research for their electrochemical properties and structural stability at elevated temperatures. The material is primarily of research interest rather than widely commercialized, with potential advantages in battery thermal stability and cycle life compared to conventional layered oxide cathodes.

lithium-ion battery cathodessolid-state battery materialsthermal energy storageadvanced electrochemistry researchhigh-temperature ceramic applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	161.0	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2200	-	DFT · OptB88vdW
Shear Modulus(G)	112.7	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	4.233	kg/m³	DFT · OptB88vdW

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

Filter by

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.04000	eV	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	35.74	-	DFT · OptB88vdW
Magnetic Moment(μB)	0.05400	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000132	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000127	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-23.85	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-21.47	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)	0.1384	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-2.046	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.

Li4Fe2SiO7

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental