AlSi
AlSi is a metallic aluminum-silicon compound studied for its structural properties and potential applications in advanced anode materials.
About AlSi
AlSi is a metallic compound composed of aluminum and silicon. Its electronic character distinguishes it from many semiconductor-based silicon anodes, positioning it as an interesting subject for fundamental studies in alloy behavior within energy storage systems. Although it is currently recognized as being above the thermodynamic hull, the material remains a subject of interest due to the extensive structural data available for this composition across multiple databases. Its metallic nature suggests unique charge transport properties that differ significantly from pure silicon or traditional silicon-based insulators. The compound is primarily studied in the context of high-capacity anode research where structural stability and phase evolution during cycling are critical factors. Its presence in large-scale structural databases underscores its importance as a reference point for understanding aluminum-silicon phase interactions.
Key Properties
Cross-validated computational properties for AlSi, aggregated across 5 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.
Synthesis Routes
Literature-extracted synthesis procedures targeting AlSi.
Applications
Where AlSi is used.
Patent Landscape
1 patent reference AlSi or close compositional variants.
| Patent | Title | Assignee | Granted |
|---|---|---|---|
| 8882880 | Method for controlling extremely low Ti in extra low carbon AlSi-killed steel | — | — |
Frequently Asked Questions
Common questions about AlSi, answered from cross-validated data.
What is AlSi?
AlSi is a metallic aluminum-silicon compound studied for its structural properties and potential applications in advanced anode materials.
What is AlSi used for?
What is the band gap of AlSi?
Is AlSi a metal, semiconductor, or insulator?
Is AlSi thermodynamically stable?
How many polymorphs of AlSi are known?
How is AlSi synthesized?
What elements does AlSi contain?
Where does the data for AlSi come from?
How It Compares
Within the silicon anode materials class.
Within the diverse class of silicon anode materials, AlSi stands out for its metallic character, which contrasts sharply with the semiconducting nature of pure Si or the insulating properties of many silicides like BaSi2. While materials such as Mg2Si or MoSi2 are often evaluated for their specific structural stability and electrochemical performance, AlSi is primarily characterized by its structural complexity and the high number of reported configurations, marking it as a distinct, albeit less stable, alternative to more robust silicides like FeSi.
Related Compounds
Other Silicon Anode Materials in the database.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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