CoO4
CoO4 is a semimetallic conversion oxide material studied for its potential role as a high-capacity anode in next-generation electrochemical energy storage devices.

About CoO4
CoO4 is a complex conversion oxide characterized by its near-zero-gap semimetallic electronic structure. As an unconventional member of the oxide anode family, it represents a high-energy-density candidate for advanced electrochemical systems, though its thermodynamic profile suggests it exists in a metastable state relative to more common binary oxides.
Because it sits above the thermodynamic hull, this material is of significant interest to researchers studying phase transformation and structural evolution during battery cycling. Its rich structural data suggests a complex landscape of potential atomic arrangements that could be leveraged for high-capacity energy storage applications.
Key Properties
Cross-validated computational properties for CoO4, 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.
Synthesis Routes
Literature-extracted synthesis procedures targeting CoO4.
Applications
Where CoO4 is used.
Frequently Asked Questions
Common questions about CoO4, answered from cross-validated data.
What is CoO4?
CoO4 is a semimetallic conversion oxide material studied for its potential role as a high-capacity anode in next-generation electrochemical energy storage devices.
What is CoO4 used for?
What is the band gap of CoO4?
Is CoO4 a metal, semiconductor, or insulator?
Is CoO4 thermodynamically stable?
How many polymorphs of CoO4 are known?
How is CoO4 synthesized?
What elements does CoO4 contain?
Where does the data for CoO4 come from?
How It Compares
Within the conversion oxide anodes class.
Within the class of conversion oxide anodes, CoO4 occupies a distinct position compared to more conventional, thermodynamically stable compounds like Co3O4 or CoO. While siblings such as Fe2O3 and SnO2 are widely utilized for their predictable conversion mechanisms, CoO4 offers a more exotic electronic profile that challenges standard models of lithiation and structural stability.
Related Compounds
Other Conversion Oxide Anodes in the database.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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