Recent Advance in Ionic-Liquid-Based Electrolytes for Rechargeable Metal-Ion Batteries

Area of Science:

• Electrochemistry
• Materials Science
• Sustainable Energy

Background:

• Battery energy storage systems are crucial for modern society's technological advancement.
• Metal-ion batteries (Li, Na, K, Mg, Zn, Al) are key for sustainable development.
• Electrolytes are critical components for improving battery technology.

Purpose of the Study:

• To review the composition and classification of room-temperature ionic liquids (ILs).
• To summarize the recent applications of ILs as electrolytes in diverse metal-ion batteries.
• To highlight the potential of ILs in enhancing battery performance and safety.

Main Methods:

• Literature review of ionic liquids (ILs) and their properties.
• Analysis of IL applications in various metal-ion battery systems.
• Synthesis of information on ILs' impact on battery stability, kinetics, energy density, lifespan, and safety.

Main Results:

• Ionic liquids (ILs) possess high conductivity, nonflammability, nonvolatility, thermal stability, and a wide electrochemical window.
• ILs have demonstrated significant potential in improving battery stability, kinetics, energy density, service life, and safety.
• ILs are versatile electrolytes for Li, Na, K, Mg, Zn, and Al secondary batteries.

Conclusions:

• Room-temperature ionic liquids are promising electrolytes for advancing metal-ion battery technology.
• The unique properties of ILs contribute to enhanced battery performance and safety.
• Further research into ILs will drive innovation in energy storage.