Li2MnO2
Lithium manganese oxide
This material is a lithium-based transition metal oxide often investigated for its potential role in electrochemical energy storage systems. It serves as a cathode material candidate due to its ability to facilitate the reversible movement of lithium ions during charge and discharge cycles.
Key Properties
Cross-validated computational properties for Li2MnO2, 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 Li2MnO2, 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-3m1 (No. 164) | trigonal | 2.43 | 0.0279 | -6.597 | 3.67 |
| Immm (No. 71) | orthorhombic | 0.00 | 0.0717 | -6.553 | 3.01 |
| C2/m (No. 12) | monoclinic | 0.00 | 0.0746 | -6.551 | 3.00 |
| Immm (No. 71) | — | — | — | — | — |
| P-3m1 (No. 164) | — | — | — | — | — |
| Immm (No. 71) | — | — | — | — | — |
| P-3m1 (No. 164) | Trigonal | — | — | — | 3.48 |
| P-3m1 (No. 164) | Trigonal | — | — | — | 3.67 |
| P-3m1 (No. 164) | Trigonal | — | — | — | 3.66 |
| P-3m1 (No. 164) | — | — | — | — | — |
Applications
Where Li2MnO2 is used.
Frequently Asked Questions
Common questions about Li2MnO2, answered from cross-validated data.
What is Li2MnO2?
This material is a lithium-based transition metal oxide often investigated for its potential role in electrochemical energy storage systems. It serves as a cathode material candidate due to its ability to facilitate the reversible movement of lithium ions during charge and discharge cycles.
What is Li2MnO2 used for?
What is the band gap of Li2MnO2?
Is Li2MnO2 a metal, semiconductor, or insulator?
Is Li2MnO2 thermodynamically stable?
What is the crystal structure of Li2MnO2?
What is the density of Li2MnO2?
How many polymorphs of Li2MnO2 are known?
What elements does Li2MnO2 contain?
Where does the data for Li2MnO2 come from?
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.
Analyze Li2MnO2 in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.
Explore the Platform →