Chitosan-based materials for battery separators and polymer electrolyte membranes: A review

Area of Science:

• Materials Science
• Electrochemistry
• Sustainable Energy

Background:

• Chitosan's unique properties (ionic groups, polarity, non-toxicity, film-forming, biodegradability) make it suitable for battery applications.
• It offers a sustainable alternative to synthetic materials in energy storage devices.
• Extraction methods and degree of deacetylation significantly impact chitin's electrochemical performance.

Purpose of the Study:

• To review chitosan's extraction methods and their link to its suitability for energy devices.
• To explore chitosan's applications as separators and polymer electrolytes.
• To highlight chitosan as a sustainable material for advanced battery systems.

Main Methods:

• Review of literature on chitosan extraction (demineralization, deproteinization, deacetylation).
• Analysis of chitosan's electrochemical performance based on extraction parameters.
• Evaluation of modification strategies (polymer blending, crosslinking, salt selection, plasticizers).

Main Results:

• Chitosan extraction methods influence its electrochemical properties.
• Chitosan can be used to modify existing separators or as a standalone component.
• Performance enhancement is achievable through various optimization techniques.

Conclusions:

• Chitosan is a viable, eco-friendly material for advanced battery separators and polymer electrolytes.
• Optimized chitosan-based materials can support high-performance, safe energy storage.
• Further research into extraction and modification can unlock its full potential.