Li9Co7O16
Li9Co7O16 is a semiconducting lithium transition-metal oxide investigated for its potential role in electrochemical energy storage.
About Li9Co7O16
Li9Co7O16 belongs to the family of layered lithium transition-metal oxides, characterized by its semiconducting electronic structure. As a material situated near the thermodynamic hull, it represents a promising candidate for synthesis and further investigation within battery research.
This compound plays a significant role in the ongoing exploration of lithium-based oxides for energy storage applications. Its structural properties make it a subject of interest for researchers aiming to optimize electrode performance and stability in advanced electrochemical systems.
Key Properties
Cross-validated computational properties for Li9Co7O16, aggregated across 2 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 Li9Co7O16, 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. |
|---|---|---|---|---|---|
| P-1 (No. 2) | triclinic | 0.71 | 0.0076 | -6.321 | 4.82 |
| P-1 (No. 2) | triclinic | 0.13 | 0.0088 | -6.320 | 4.82 |
| P-1 (No. 2) | triclinic | 0.09 | 0.0089 | -6.320 | 4.82 |
| P-1 (No. 2) | triclinic | 0.45 | 0.0104 | -6.318 | 4.81 |
| P2/m (No. 10) | monoclinic | 0.02 | 0.0241 | -6.305 | 4.81 |
| C2/m (No. 12) | monoclinic | 0.63 | 0.0343 | -6.294 | 4.45 |
| C2/m (No. 12) | monoclinic | 0.05 | 0.0368 | -6.292 | 4.42 |
| P1 (No. 1) | triclinic | 1.15 | 0.0392 | -6.289 | 4.36 |
| P-1 (No. 2) | triclinic | 0.63 | 0.0431 | -6.286 | 4.41 |
| P-1 (No. 2) | triclinic | 0.70 | 0.0435 | -6.285 | 4.45 |
| P-1 (No. 2) | triclinic | 0.73 | 0.0456 | -6.283 | 4.38 |
| C2/m (No. 12) | monoclinic | 0.32 | 0.0457 | -6.283 | 4.42 |
Applications
Where Li9Co7O16 is used.
Frequently Asked Questions
Common questions about Li9Co7O16, answered from cross-validated data.
What is Li9Co7O16?
Li9Co7O16 is a semiconducting lithium transition-metal oxide investigated for its potential role in electrochemical energy storage.
What is Li9Co7O16 used for?
What is the band gap of Li9Co7O16?
Is Li9Co7O16 a metal, semiconductor, or insulator?
Is Li9Co7O16 thermodynamically stable?
What is the crystal structure of Li9Co7O16?
What is the density of Li9Co7O16?
How many polymorphs of Li9Co7O16 are known?
What elements does Li9Co7O16 contain?
Where does the data for Li9Co7O16 come from?
How It Compares
Within the layered lithium transition-metal oxides class.
Within the diverse class of layered lithium transition-metal oxides, Li9Co7O16 offers a distinct stoichiometry compared to the widely utilized LiCoO2. While LiCoO2 remains the industry standard for high-energy density cathodes, Li9Co7O16 provides a unique structural alternative that contributes to the broader understanding of phase space and stability in cobalt-rich lithium 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).
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