LiCoGeO4
LiCoGeO4 is a metastable semiconducting oxide containing lithium, cobalt, germanium, and oxygen, primarily investigated for its structural properties in energy storage research.
About LiCoGeO4
LiCoGeO4 is a semiconducting member of the layered lithium transition-metal oxide family. As a metastable compound, it represents a complex structural arrangement of lithium, cobalt, germanium, and oxygen, which is of significant interest for understanding ion mobility and structural evolution in energy storage materials. Its unique composition makes it a subject of ongoing investigation in solid-state chemistry. Because of its specific electronic character, researchers study this compound to better understand how substituting transition metals with elements like germanium affects the stability and electrochemical performance of lithium-based oxide frameworks. It serves as a valuable model for exploring the limits of structural diversity within the broader class of layered oxides.
Key Properties
Cross-validated computational properties for LiCoGeO4, 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 LiCoGeO4, 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. |
|---|---|---|---|---|---|
| Pc (No. 7) | monoclinic | 1.40 | 0.0814 | -6.620 | 3.65 |
| Pc (No. 7) | monoclinic | 1.64 | 0.0863 | -6.615 | 3.69 |
| Pc (No. 7) | Monoclinic | — | — | — | 3.65 |
| Pc (No. 7) | Monoclinic | — | — | — | 3.83 |
| Pc (No. 7) | Monoclinic | — | — | — | 3.74 |
| Pc (No. 7) | Monoclinic | — | — | — | 3.69 |
| Pc (No. 7) | Monoclinic | — | — | — | 3.88 |
| Pc (No. 7) | Monoclinic | — | — | — | 3.78 |
| Pc (No. 7) | — | — | — | — | — |
| Pc (No. 7) | — | — | — | — | — |
| Pc (No. 7) | — | — | — | — | — |
Applications
Where LiCoGeO4 is used.
Frequently Asked Questions
Common questions about LiCoGeO4, answered from cross-validated data.
What is LiCoGeO4?
LiCoGeO4 is a metastable semiconducting oxide containing lithium, cobalt, germanium, and oxygen, primarily investigated for its structural properties in energy storage research.
What is LiCoGeO4 used for?
What is the band gap of LiCoGeO4?
Is LiCoGeO4 a metal, semiconductor, or insulator?
Is LiCoGeO4 thermodynamically stable?
What is the crystal structure of LiCoGeO4?
What is the density of LiCoGeO4?
How many polymorphs of LiCoGeO4 are known?
What elements does LiCoGeO4 contain?
Where does the data for LiCoGeO4 come from?
How It Compares
Within the layered lithium transition-metal oxides class.
Within the diverse family of layered lithium transition-metal oxides, LiCoGeO4 occupies a distinct niche compared to more conventional, commercially established materials like LiCoO2. While LiCoO2 is highly stable and widely utilized in standard battery cathodes, LiCoGeO4 is characterized by its metastable nature and the incorporation of germanium, which differentiates its structural behavior from the simpler transition-metal architectures found in LiNiO2 or LiMnO2.
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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