Functionalized Separators Boosting Electrochemical Performances for Lithium Batteries.

Area of Science:

• Materials Science
• Electrochemistry
• Energy Storage

Background:

• Growing demand for energy storage systems, electric vehicles, and portable electronics necessitates safer, more reliable lithium batteries.
• Functional separators with improved mechanical and electrochemical properties are essential for advanced lithium battery design.
• Current separators face limitations in electrolyte wettability, coating adhesion, and overall performance.

Purpose of the Study:

• To review advancements in the design of lithium battery separators using various modification techniques.
• To provide an overview of research on coated, in situ modified, and grafting modified separators.
• To compare the characteristics and fabrication methods of inorganic, organic framework, and inorganic-organic coated separators.

Main Methods:

• Review of current research on separator modification techniques.
• Analysis of electrolyte wettability and coating material adhesion.
• Comparison of different types of coated separators (inorganic, organic, inorganic-organic).

Main Results:

• Modified separators demonstrate improved mechanical and electrochemical performances.
• Coated, in situ modified, and grafting modified separators offer enhanced electrolyte wettability and adhesion.
• Different fabrication methods yield distinct characteristics for inorganic, organic, and hybrid coated separators.

Conclusions:

• Separator modification is key to achieving next-generation advanced lithium batteries.
• Future research should focus on novel materials, improved manufacturing, and quantitative adhesion analysis.
• Optimized separators will enhance the safety and reliability of energy storage systems.