Advances in Artificial Layers for Stable Lithium Metal Anodes

Area of Science:

• Materials Science
• Electrochemistry
• Energy Storage

Background:

• Lithium (Li) metal anodes are crucial for high-energy rechargeable batteries due to their high capacity.
• Lithium dendrite formation during cycling poses significant safety risks and limits practical application.
• Artificial protective layers offer a promising strategy to mitigate Li dendrite issues.

Purpose of the Study:

• To review recent advancements in artificial layers for stable Li metal anodes.
• To categorize artificial layers based on their Li dendrite inhibition mechanisms.
• To provide guidance for designing novel artificial layers for improved battery performance.

Main Methods:

• Literature review of recent research on artificial layers for Li metal anodes.
• Analysis of different artificial layer types and their mechanisms of action.
• Categorization based on uniform Li deposition regulation and dendrite growth suppression.

Main Results:

• Artificial layers are effective in suppressing lithium dendrite growth.
• Various artificial layer strategies exist, including those that regulate Li deposition and suppress dendrite formation.
• Recent progress highlights the potential of tailored artificial layers for stable Li metal anodes.

Conclusions:

• Artificial layers are a key strategy for enabling stable and safe lithium metal anodes.
• Understanding the mechanisms of Li dendrite inhibition is crucial for designing effective artificial layers.
• This review provides a framework for future research and development in this field.