Li2Ge2O5
Lithium germanate is a crystalline inorganic compound that belongs to the family of lithium-germanium oxides. It is primarily studied for its potential as a solid electrolyte material in advanced battery technologies and as a precursor for specialized glass ceramics.

Key Properties
Cross-validated computational properties for Li2Ge2O5, 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 Li2Ge2O5, 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. |
|---|---|---|---|---|---|
| Ccc2 (No. 37) | orthorhombic | 3.30 | 0.0216 | -6.446 | 3.53 |
| Ccc2 (No. 37) | Orthorhombic | — | — | — | 3.36 |
| Ccc2 (No. 37) | Orthorhombic | — | — | — | 3.56 |
| Ccc2 (No. 37) | Orthorhombic | — | — | — | 3.47 |
| Ccc2 (No. 37) | — | — | — | — | — |
Applications
Where Li2Ge2O5 is used.
Frequently Asked Questions
Common questions about Li2Ge2O5, answered from cross-validated data.
What is Li2Ge2O5?
Lithium germanate is a crystalline inorganic compound that belongs to the family of lithium-germanium oxides. It is primarily studied for its potential as a solid electrolyte material in advanced battery technologies and as a precursor for specialized glass ceramics.
What is Li2Ge2O5 used for?
What is the band gap of Li2Ge2O5?
Is Li2Ge2O5 a metal, semiconductor, or insulator?
Is Li2Ge2O5 thermodynamically stable?
What is the crystal structure of Li2Ge2O5?
What is the density of Li2Ge2O5?
How many polymorphs of Li2Ge2O5 are known?
What elements does Li2Ge2O5 contain?
Where does the data for Li2Ge2O5 come from?
Related Compounds
Other Lithium 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).
Analyze Li2Ge2O5 in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.
Explore the Platform →