Li2FeS2 is an iron-lithium sulfide compound being investigated as a cathode material for advanced lithium-ion and lithium-sulfur battery systems. This research material is part of the broader class of conversion-type and intercalation cathodes that aim to overcome energy density and cycle life limitations of conventional oxide-based cathodes. The material's appeal lies in its potential for higher theoretical capacity and cost-effective iron chemistry, though it remains primarily in academic and early-stage development phases rather than commercial production.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 8,989.4 | ksi | — | ||
Poisson's Ratio(ν) | 0.3100 | - | — | ||
Shear Modulus(G) | 4,172.7 | ksi | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.1066 | lb/in³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.000 | eV | — | ||
Magnetic Moment(μB) | 4.000 | µB | — | ||
Seebeck Coefficient(S) | 21.38 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.2694 | eV/atom | — | ||
Formation Energy(ΔHf) | -0.8763 | eV/atom | — |