Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 7, 2025

Abstract Aqueous zinc (Zn)‐based structural batteries, combining electrochemical energy storage with mechanical load‐bearing capabilities, are promising for next‐generation electric vehicle due to their eco‐friendly and safe nature. However, challenges such as dendrite formation, anode corrosion, parasitic reactions limits practical application. Polymer electrolytes, particularly hydrogels, can mitigate these limitations, but typically possess poor properties that jeopardizes robustness. This article presents cellulose nanofibrils (CNF) reinforced chitosan a novel polymer electrolyte system aqueous Zn‐based batteries. Chitosan matrix, hydratable plastic superior manipulate solvation sheath of Zn 2 ⁺ ions enhance battery performance. When combined CNF reinforcement, ChitosanCNF forms robust, multifunctional material. A chitosan‐based glue improves the interface between electrodes in Zn||ChitosanCNF‐4||LiMn O 4 (LMO)‐Carbon Fiber (CF) laminated battery, displaying excellent performance over 4500 h cycling stability 90% capacity retention. The lamination process also strengthens achieving an impressive tensile modulus ≈8.48 GPa. Zn||ChitosanCNF‐4||LMO‐CF is highly deformation‐resistant, abuse‐tolerant, exhibits minimal self‐discharge, making it adaptable complex configurations without additional support. Its integrity space efficiency allow seamless integration into infrastructure, solution low‐cost, sustainable, high‐performance storage.

Language: Английский