Li2V2CoO6
Li2V2CoO6 is a semiconducting layered lithium transition-metal oxide studied for its potential applications in electrochemical energy storage.
About Li2V2CoO6
Li2V2CoO6 belongs to the class of layered lithium transition-metal oxides, a group of materials widely investigated for their electrochemical potential in energy storage systems. As a semiconducting compound, it exhibits electronic properties that distinguish it from purely insulating or metallic oxides, making it a subject of interest for fundamental studies in solid-state chemistry.
While this compound is currently classified as being above the thermodynamic hull, suggesting potential instability under ambient conditions, its existence across multiple structural databases highlights its significance in theoretical material discovery. Researchers analyze such phases to understand the complex interplay between lithium-ion mobility and transition-metal redox behavior in layered frameworks.
Key Properties
Cross-validated computational properties for Li2V2CoO6, 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 Li2V2CoO6, 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. |
|---|---|---|---|---|---|
| Cmce (No. 64) | orthorhombic | 1.14 | 0.1700 | -7.526 | 3.84 |
| Cmce (No. 64) | — | — | — | — | — |
| Cmce (No. 64) | Orthorhombic | — | — | — | 4.22 |
| Cmce (No. 64) | Orthorhombic | — | — | — | 3.84 |
| Cmce (No. 64) | Orthorhombic | — | — | — | 4.02 |
Applications
Where Li2V2CoO6 is used.
Frequently Asked Questions
Common questions about Li2V2CoO6, answered from cross-validated data.
What is Li2V2CoO6?
Li2V2CoO6 is a semiconducting layered lithium transition-metal oxide studied for its potential applications in electrochemical energy storage.
What is Li2V2CoO6 used for?
What is the band gap of Li2V2CoO6?
Is Li2V2CoO6 a metal, semiconductor, or insulator?
Is Li2V2CoO6 thermodynamically stable?
What is the crystal structure of Li2V2CoO6?
What is the density of Li2V2CoO6?
How many polymorphs of Li2V2CoO6 are known?
What elements does Li2V2CoO6 contain?
Where does the data for Li2V2CoO6 come from?
How It Compares
Within the layered lithium transition-metal oxides class.
Within the diverse family of layered lithium transition-metal oxides, Li2V2CoO6 represents a more complex, multi-metal system compared to the well-established, commercially standard LiCoO2. While LiCoO2 serves as a stable, high-performance industry benchmark, Li2V2CoO6 is part of a broader exploratory effort to incorporate vanadium into layered lattices to tune electrochemical performance, placing it alongside other experimental variants like Li2MnO3 that seek to expand the capacity limits of traditional cathode materials.
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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