Engineering Covalent Organic Frameworks Toward Advanced Zinc-Based Batteries.

Area of Science:

• Materials Science
• Electrochemistry
• Energy Storage

Background:

• Zinc-based batteries (ZBBs) offer safety and high energy density but face issues like zinc dendrites and side reactions.
• Covalent organic frameworks (COFs) possess rigid, porous structures beneficial for battery applications.

Purpose of the Study:

• To systematically review the application of COFs in ZBBs.
• To discuss challenges in ZBBs and how COF structures can mitigate them.
• To highlight the advantages and future outlook of COF-based materials in ZBBs.

Main Methods:

• Literature review focusing on COF structures and their electrochemical performance in ZBBs.
• Analysis of ZBB challenges including anode dendrites, side reactions, cathode dissolution, and shuttle effects.
• Examination of COF-correlated materials and their specific roles in various ZBB systems.

Main Results:

• COFs offer structural advantages like porosity and ordered frameworks that can suppress dendrite formation and side reactions.
• COF-based materials demonstrate potential in improving kinetics and stability at both anode and cathode.
• The review details how specific COF architectures address key limitations in ZBB performance.

Conclusions:

• COFs and their derivatives are highly promising for advancing ZBB technology.
• Further research into COF materials is crucial for overcoming remaining challenges and realizing practical ZBB applications.
• This review provides a comprehensive reference for utilizing COFs in next-generation ZBBs.