Be2Si
Be2Si is a metallic, metastable beryllium silicide compound studied for its potential role in advanced energy storage systems.
About Be2Si
Be2Si is a metallic compound composed of beryllium and silicon. As a member of the silicon anode material class, it represents a unique combination of light-element chemistry that has been extensively documented across multiple structural databases. Its metallic electronic character suggests distinct charge transport properties compared to traditional semiconductor-based anodes.
Despite its high volume of reported structural variations, the compound is identified as being thermodynamically unstable relative to the ground-state hull. This metastable nature is a critical factor for researchers evaluating its potential for electrochemical energy storage, where structural evolution during cycling is a primary concern.
Key Properties
Cross-validated computational properties for Be2Si, aggregated across 4 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.
Applications
Where Be2Si is used.
Frequently Asked Questions
Common questions about Be2Si, answered from cross-validated data.
What is Be2Si?
Be2Si is a metallic, metastable beryllium silicide compound studied for its potential role in advanced energy storage systems.
What is Be2Si used for?
What is the band gap of Be2Si?
Is Be2Si a metal, semiconductor, or insulator?
Is Be2Si thermodynamically stable?
How many polymorphs of Be2Si are known?
What elements does Be2Si contain?
Where does the data for Be2Si come from?
How It Compares
Within the silicon anode materials class.
Within the diverse family of silicon-based materials, Be2Si occupies a niche position compared to more conventional silicides like Mg2Si or the widely utilized elemental Si. Unlike the robust, stable phases such as MoSi2 or BaSi2, Be2Si is characterized by its metastable nature, making it a subject of fundamental structural study rather than immediate commercial deployment in battery architectures.
Related Compounds
Other Silicon Anode Materials in the database.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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