Li2VCoO4
Li2VCoO4 is a semiconducting, metastable layered oxide containing lithium, vanadium, cobalt, and oxygen, primarily researched for battery electrode applications.
About Li2VCoO4
Li2VCoO4 belongs to the class of layered lithium transition-metal oxides, characterized by a semiconducting electronic structure. As a metastable phase, it represents a complex arrangement of lithium, vanadium, cobalt, and oxygen ions that offers unique pathways for ion mobility and redox activity.
This material is primarily investigated for its role in next-generation battery technologies. Its specific composition allows researchers to explore how mixed-metal oxides can be engineered to optimize electrochemical performance beyond traditional cathode materials.
Key Properties
Cross-validated computational properties for Li2VCoO4, 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 Li2VCoO4, 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. |
|---|---|---|---|---|---|
| Imma (No. 74) | orthorhombic | 1.32 | 0.0674 | -7.129 | 4.20 |
| P1 (No. 1) | triclinic | 1.40 | 0.0738 | -7.123 | 4.22 |
| P-1 (No. 2) | triclinic | 1.47 | 0.2639 | -6.933 | 4.22 |
| P-1 (No. 2) | Triclinic | — | — | — | 4.22 |
| P-1 (No. 2) | Triclinic | — | — | — | 4.51 |
| Imma (No. 74) | Orthorhombic | — | — | — | 4.20 |
| P-1 (No. 2) | Triclinic | — | — | — | 4.39 |
| P1 (No. 1) | — | — | — | — | — |
| Imma (No. 74) | Orthorhombic | — | — | — | 4.44 |
| Imma (No. 74) | Orthorhombic | — | — | — | 4.57 |
| P1 (No. 1) | — | — | — | — | — |
Applications
Where Li2VCoO4 is used.
Frequently Asked Questions
Common questions about Li2VCoO4, answered from cross-validated data.
What is Li2VCoO4?
Li2VCoO4 is a semiconducting, metastable layered oxide containing lithium, vanadium, cobalt, and oxygen, primarily researched for battery electrode applications.
What is Li2VCoO4 used for?
What is the band gap of Li2VCoO4?
Is Li2VCoO4 a metal, semiconductor, or insulator?
Is Li2VCoO4 thermodynamically stable?
What is the crystal structure of Li2VCoO4?
What is the density of Li2VCoO4?
How many polymorphs of Li2VCoO4 are known?
What elements does Li2VCoO4 contain?
Where does the data for Li2VCoO4 come from?
How It Compares
Within the layered lithium transition-metal oxides class.
Within the broader family of layered lithium transition-metal oxides, Li2VCoO4 occupies a distinct position compared to more conventional materials like LiCoO2. While LiCoO2 serves as a stable industry standard for lithium-ion batteries, Li2VCoO4 is a metastable variant that provides a different structural framework for studying ion intercalation dynamics and electronic properties in multi-metal systems.
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).
- mpaloe — Data from mpaloe.
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
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