High-entropy lattice disordering enhances ion migration in LaCl₃-based solid-state electrolytes

Area of Science:

• Materials Science
• Electrochemistry
• Solid-State Chemistry

Background:

• Lithium-ion diffusion is crucial for battery performance.
• Developing materials with efficient ion transport is a key challenge.

Purpose of the Study:

• To investigate how high-entropy disordered crystal structures affect lithium-ion diffusion.
• To explore the potential of these structures for improved battery electrolytes.

Main Methods:

• Computational modeling of crystal structures.
• Analysis of activation energy for ion diffusion.
• Characterization of 3D transport pathways.

Main Results:

• High-entropy disordered structures significantly reduce activation energy for lithium-ion diffusion.
• These structures create interconnected 3D channels facilitating ion transport.

Conclusions:

• Disordered high-entropy materials offer a promising pathway for next-generation lithium-ion batteries.
• Optimizing crystal structure disorder is key to enhancing ionic conductivity.