Glassy Metal-Organic Framework-Based Solid-State Electrolytes: Advance, Challenge, and Emerging Opportunities

Area of Science:

• Materials Science
• Electrochemistry
• Nanotechnology

Background:

• Glassy metal-organic frameworks (MOFs) are amorphous porous materials with unique properties.
• These properties include abundant unsaturated metal sites and isotropic attributes, making them suitable for energy storage applications.
• Glassy MOFs are emerging as a promising material platform for solid-state electrolytes.

Purpose of the Study:

• To review mechanisms promoting ionic migration and suppressing lithium dendrites in glassy MOF-based electrolytes.
• To systematically introduce different types of glassy MOF-based electrolytes.
• To discuss factors influencing the performance of these electrolytes for lithium metal batteries.

Main Methods:

• Summarizing mechanisms of ionic migration and lithium dendrite suppression.
• Systematically introducing various glassy MOF-based electrolyte types.
• Discussing performance-influencing factors such as structural characteristics, pore sizes, ionic liquids, polymer compositing, and electronic effects.

Main Results:

• Glassy MOF-based electrolytes show potential for enhanced ionic conductivity.
• These materials can effectively suppress the formation of lithium dendrites.
• Performance is influenced by structural characteristics, pore size, and compositing strategies.

Conclusions:

• Glassy MOFs represent a promising material platform for solid-state electrolytes in lithium metal batteries.
• Further research into structural characteristics and compositing methods can optimize performance.
• Innovative approaches are needed for the commercial application of MOF glass-based lithium metal batteries.