Li8FeCo3O8
Li8FeCo3O8 is a metastable, semiconducting lithium transition-metal oxide used in advanced materials research for potential battery applications.
About Li8FeCo3O8
Li8FeCo3O8 belongs to the class of layered lithium transition-metal oxides, characterized by a semiconducting electronic structure. As a metastable phase, it represents a complex configuration of lithium, iron, cobalt, and oxygen atoms that offers unique insights into structural diversity within battery materials. Its existence highlights the intricate landscape of cation ordering in multi-metal oxide systems. This compound is primarily of interest in the field of energy storage materials science, where researchers investigate its potential for electrochemical performance. The interplay between iron and cobalt within the layered framework is a key focus for understanding how transition-metal substitution influences the stability and conductivity of lithium-ion cathode candidates.
Key Properties
Cross-validated computational properties for Li8FeCo3O8, aggregated across 3 databases.
Band GapEnergy needed to move an electron from the valence band to the conduction band. Lower or zero values tend to behave more metallic; larger gaps are more insulating or semiconducting.
Energy Above HullThermodynamic distance from the most stable set of competing phases. 0 eV/atom is on the convex hull; small positive values may still be experimentally accessible.
StabilityA plain-language summary of the best reported energy-above-hull result. It reflects whether the lowest-energy structure is on, near, or far from the stability hull.
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
Reported Structures
Lowest-energy structures reported for Li8FeCo3O8, ranked by energy above hull.
| Space GroupSymmetry classification of the crystal arrangement. The number is the international space-group index. | Crystal SystemBroad lattice family, such as cubic, tetragonal, monoclinic, or triclinic, derived from unit-cell symmetry. | Band Gap (eV)Electronic gap calculated for this specific reported structure, measured in electronvolts. | E above hull (eV/atom)Thermodynamic distance from the convex hull for this structure, normalized per atom. Lower is generally more stable. | E/atom (eV)Computed total energy normalized per atom. Use energy above hull, not this value alone, when comparing stability. | Density (g/cm³)Mass per relaxed crystal volume, reported in grams per cubic centimeter. |
|---|---|---|---|---|---|
| P1 (No. 1) | triclinic | 2.00 | 0.0997 | -5.948 | 3.34 |
| P1 (No. 1) | — | — | — | — | — |
| P1 (No. 1) | Triclinic | — | — | — | 3.53 |
| P1 (No. 1) | Triclinic | — | — | — | 3.34 |
| P1 (No. 1) | Triclinic | — | — | — | 3.53 |
Applications
Where Li8FeCo3O8 is used.
Frequently Asked Questions
Common questions about Li8FeCo3O8, answered from cross-validated data.
What is Li8FeCo3O8?
Li8FeCo3O8 is a metastable, semiconducting lithium transition-metal oxide used in advanced materials research for potential battery applications.
What is Li8FeCo3O8 used for?
What is the band gap of Li8FeCo3O8?
Is Li8FeCo3O8 a metal, semiconductor, or insulator?
Is Li8FeCo3O8 thermodynamically stable?
What is the crystal structure of Li8FeCo3O8?
What is the density of Li8FeCo3O8?
How many polymorphs of Li8FeCo3O8 are known?
What elements does Li8FeCo3O8 contain?
Where does the data for Li8FeCo3O8 come from?
How It Compares
Within the layered lithium transition-metal oxides class.
Within the diverse family of layered lithium transition-metal oxides, Li8FeCo3O8 is distinguished by its specific stoichiometry compared to more conventional, widely utilized members like LiCoO2. While LiCoO2 serves as the standard for commercial cathode performance, Li8FeCo3O8 exists as a more complex, metastable alternative that challenges the structural simplicity of binary-metal systems like LiAlO2 or LiMnO2, providing a unique case study in how multiple transition metals interact within a single oxide lattice.
Related Compounds
Other Layered Lithium Transition-Metal Oxides in the database.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
- mpaloe — Data from mpaloe.
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