Li1 Fe1 S2

semiconductor
· Li1 Fe1 S2

LiFeS₂ is a ternary lithium iron sulfide compound classified as a semiconductor, representing a member of the layered metal sulfide family with potential electrochemical and energy storage applications. This material is primarily of research interest for next-generation battery cathodes and solid-state energy storage systems, where its mixed-valence iron centers and sulfide framework offer potential advantages in ionic conductivity and electrochemical cycling compared to conventional oxide-based cathodes. LiFeS₂ is an experimental compound still under investigation rather than a mature commercial material, with development focused on improving cycle life, rate capability, and thermal stability for practical lithium-ion and alternative battery chemistries.

battery cathode materialsenergy storage researchsolid-state batterieslithium-ion alternativeselectrochemical systems

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Bulk Modulus(K)
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ksi——
Shear Modulus(G)
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Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
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eV——
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Formation Energy(ΔHf)
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eV/atom——
Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

Export Control

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.
Li1 Fe1 S2 — Properties & Data | MatWorld