Li9Mn7O16
Li9Mn7O16 is a semiconducting lithium manganese oxide that serves as a potential material for energy storage research due to its favorable thermodynamic stability.
About Li9Mn7O16
Li9Mn7O16 belongs to the family of layered lithium transition-metal oxides, a class of materials essential for modern electrochemical energy storage. As a semiconducting oxide, it exhibits unique electronic properties that influence its charge-transfer kinetics and structural integrity during cycling. Its position near the thermodynamic hull suggests it is a viable candidate for experimental synthesis and further exploration in battery research.
The compound is characterized by a complex arrangement of lithium and manganese ions within an oxygen framework. Its structural diversity reflects the broader trends found in lithium-manganese-oxygen systems, where the interplay between metal oxidation states and lattice geometry dictates its overall stability and potential utility in high-performance electrode applications.
Key Properties
Cross-validated computational properties for Li9Mn7O16, 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 Li9Mn7O16, 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 | 0.93 | 0.0229 | -7.160 | 3.91 |
| P-1 (No. 2) | triclinic | 0.93 | 0.0239 | -7.159 | 3.94 |
| P-1 (No. 2) | triclinic | 0.92 | 0.0240 | -7.159 | 3.91 |
| P-1 (No. 2) | triclinic | 0.86 | 0.0245 | -7.158 | 3.92 |
| C2/m (No. 12) | monoclinic | 0.91 | 0.0246 | -7.158 | 3.92 |
| P-1 (No. 2) | triclinic | 0.89 | 0.0247 | -7.158 | 3.90 |
| P-1 (No. 2) | triclinic | 0.88 | 0.0250 | -7.158 | 3.89 |
| P-1 (No. 2) | triclinic | 0.85 | 0.0252 | -7.157 | 3.92 |
| P2/m (No. 10) | monoclinic | 0.89 | 0.0256 | -7.157 | 3.94 |
| P-1 (No. 2) | triclinic | 1.02 | 0.0258 | -7.157 | 3.93 |
| P2/m (No. 10) | monoclinic | 0.93 | 0.0264 | -7.156 | 3.92 |
| C2/m (No. 12) | monoclinic | 0.98 | 0.0265 | -7.156 | 3.94 |
Applications
Where Li9Mn7O16 is used.
Frequently Asked Questions
Common questions about Li9Mn7O16, answered from cross-validated data.
What is Li9Mn7O16?
Li9Mn7O16 is a semiconducting lithium manganese oxide that serves as a potential material for energy storage research due to its favorable thermodynamic stability.
What is Li9Mn7O16 used for?
What is the band gap of Li9Mn7O16?
Is Li9Mn7O16 a metal, semiconductor, or insulator?
Is Li9Mn7O16 thermodynamically stable?
What is the crystal structure of Li9Mn7O16?
What is the density of Li9Mn7O16?
How many polymorphs of Li9Mn7O16 are known?
What elements does Li9Mn7O16 contain?
Where does the data for Li9Mn7O16 come from?
How It Compares
Within the layered lithium transition-metal oxides class.
Within the diverse landscape of layered lithium transition-metal oxides, Li9Mn7O16 occupies a distinct structural niche compared to more conventional materials like LiCoO2 or LiNiO2. While LiMn2O4 is widely recognized for its spinel-based framework, Li9Mn7O16 represents a more specialized stoichiometry that highlights the flexibility of manganese-based oxides to accommodate varying lithium concentrations, distinguishing it from the more common layered structures like Li2MnO3.
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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