High-Entropy Solid-State Electrolytes for Rechargeable Batteries: Mechanism, Structural Designs, Characterizations,...

Area of Science:

• Materials Science
• Electrochemistry
• Energy Storage

Background:

• Conventional electrolytes in rechargeable batteries face challenges like low conductivity and poor thermal stability.
• High-entropy solid-state electrolytes (HSSEs) present a promising alternative to address these limitations.

Purpose of the Study:

• To provide a comprehensive review of HSSEs, covering their fundamental principles, synthesis, performance, and applications.
• To analyze how the high-entropy concept enhances electrochemical performance in solid-state electrolytes.
• To offer insights into current research and future directions for HSSEs.

Main Methods:

• Review of recent scientific literature on high-entropy solid-state electrolytes.
• Analysis of fundamental mechanisms, synthesis strategies, and performance characteristics.
• Discussion of applications in various electrochemical systems.

Main Results:

• High-entropy disorder effectively enhances ionic conductivity in solid-state electrolytes.
• A high-entropy approach promotes uniform atomic distribution, improving material stability.
• HSSEs demonstrate potential to mitigate interfacial issues in electrochemical devices.

Conclusions:

• HSSEs are a viable strategy for improving battery performance by enhancing ionic conductivity and stability.
• The formation of single-phase structures in HSSEs contributes to multi-dimensional performance improvements.
• Further research into HSSEs is crucial for advancing rechargeable battery technology.