Na₂Fe₂P₂O₈ is an inorganic phosphate compound belonging to the family of iron-based phosphate semiconductors, characterized by a mixed-valence iron structure in a phosphate framework. This material is primarily investigated in battery and energy storage research contexts, particularly for sodium-ion battery cathodes and solid-state electrolyte applications, where iron phosphates offer potential advantages in cost, thermal stability, and safety compared to conventional lithium-based alternatives. The compound represents an emerging research material rather than an established commercial product, with interest driven by the push toward sodium-based energy storage systems for large-scale and grid-level applications.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.01870 | eV | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Formation Energy(ΔHf) | -1.994 | eV/atom | — |