In Situ Characterization of Anode Materials for Rechargeable Li-, Na- and K-Ion Batteries: A Review

Area of Science:

• Materials Science
• Electrochemistry
• Energy Storage

Background:

• Rechargeable ion batteries are crucial for modern energy storage.
• Anode materials are key to battery performance, stability, and safety.
• Understanding anode material behavior during cycling is challenging.

Purpose of the Study:

• To review in situ characterization techniques for studying battery anodes.
• To focus on applications in lithium-, sodium-, and potassium-ion batteries.
• To provide insights into anode performance and failure mechanisms.

Main Methods:

• Systematic review of in situ characterization techniques.
• Analysis of techniques tracking microstructure, composition, and interface dynamics.
• Focus on real-time observations during battery operation.

Main Results:

• In situ techniques provide critical links between macroscopic battery performance and microscopic anode mechanisms.
• Applications across various anode types for Li-, Na-, and K-ion batteries are summarized.
• Contributions of these techniques to understanding anode behavior are highlighted.

Conclusions:

• In situ characterization is essential for optimizing anode materials.
• Current challenges and future directions for these techniques are identified.
• Valuable references for designing high-performance anodes are provided.