Recent progress and perspectives on metal-organic frameworks as solid-state electrolytes for lithium batteries

Area of Science:

• Materials Science
• Electrochemistry
• Energy Storage

Background:

• Solid-state electrolytes (SSEs) are crucial for advanced all-solid-state lithium ion/metal batteries.
• Metal-organic frameworks (MOFs) offer tunable structures and porosity, making them promising candidates for SSEs.
• Current MOF-based SSEs face challenges including low ion conductivity, limited electrochemical stability, and poor interfacial contact.

Purpose of the Study:

• To provide a comprehensive analysis of ion conduction in MOF-based electrolytes for rechargeable batteries.
• To classify and emphasize design principles for developing high-performance MOF-based SSEs.
• To explore challenges and propose future research directions for MOF applications in lithium batteries.

Main Methods:

• Literature review and analysis of existing research on MOF-based solid-state electrolytes.
• Classification of design strategies for MOF-based SSEs.
• Evaluation of the influence of MOF integration on battery electrochemical performance.

Main Results:

• Four key design principles for MOF-based SSEs are presented and discussed.
• The impact of MOF-SSEs on the electrochemical performance of lithium ion/metal batteries is detailed.
• Identified limitations and areas for improvement in current MOF-based electrolyte technology.

Conclusions:

• MOF-based SSEs hold significant potential for enhancing solid-state battery technology.
• Understanding and applying specific design principles can overcome current limitations.
• Further research into MOF materials is essential for realizing high-performance rechargeable batteries.