LaSi2

LaSi2 is a thermodynamically stable metallic silicide utilized in the development of advanced silicon-based anode materials for battery technology.

LaSiSilicon Anode Materials
Crystal structure of LaSi2
Ground-state structure · Materials Project
Overview

About LaSi2

LaSi2 is a metallic lanthanum silicide that occupies a stable position on the convex hull, indicating significant structural robustness. Its metallic electronic character distinguishes it from many semiconducting silicides, making it an intriguing candidate for specialized electrochemical applications.

As a member of the silicon anode materials class, this compound is studied for its potential to improve the structural integrity of battery electrodes. Its stability and unique electronic properties provide a foundation for understanding how rare-earth elements can modify the performance of silicon-based energy storage systems.

At a glance

Key Properties

Cross-validated computational properties for LaSi2, aggregated across 4 databases.

Band Gap

Metallic / not reported

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
3 DFT sources

Structures

33
4 databases, 6 space groups
Synthesis

Synthesis Routes

Literature-extracted synthesis procedures targeting LaSi2.

Solid State
Procedure available · ceder_solid_state
Solid State
Procedure available · ceder_solid_state
Uses

Applications

Where LaSi2 is used.

Silicon anode researchEnergy storage material developmentElectrochemical electrode studies
Reference

Frequently Asked Questions

Common questions about LaSi2, answered from cross-validated data.

What is LaSi2?

LaSi2 is a thermodynamically stable metallic silicide utilized in the development of advanced silicon-based anode materials for battery technology.

More questions
What is LaSi2 used for?
LaSi2 is used in silicon anode research, energy storage material development, and electrochemical electrode studies.
What is the band gap of LaSi2?
LaSi2 is computed to be metallic (no band gap) in the reported DFT structures.
Is LaSi2 a metal, semiconductor, or insulator?
Computed band structures report no gap, so it is metallic.
Is LaSi2 thermodynamically stable?
Yes — LaSi2 sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
How many polymorphs of LaSi2 are known?
33 structures of LaSi2 are reported across 4 databases, spanning 6 distinct space groups.
How is LaSi2 synthesized?
Literature-reported routes for LaSi2 include solid state (2 procedures documented).
What elements does LaSi2 contain?
LaSi2 contains La and Si (2 elements).
Where does the data for LaSi2 come from?
LaSi2 data is cross-referenced from latticegraph.
Comparison

How It Compares

Within the silicon anode materials class.

Unlike the semiconducting or insulating variants in the silicon anode class such as BaSi2 or pure Si, LaSi2 exhibits distinct metallic behavior that influences its charge transport characteristics. While compounds like Mg2Si are frequently explored for their specific alloying behaviors, LaSi2 stands out for its high thermodynamic stability, offering a different pathway for stabilizing silicon-based architectures during cycling.

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Related Compounds

Other Silicon Anode Materials in the database.

FeSiNaSiSiMg2SiMoSi2BaSi2C2Si2C3Si3Fe2Si2LiSiRbSiSi8
Data sources & attribution
  • latticegraph — Lattice Graph Materials Intelligence Platform

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