Tough Cellulose Hydrogel Electrolyte with Low Solvation for Highly Reversible and Flexible Aqueous Zinc-Ion Battery.

ABSTRACT: Recent advancements in hydrogel electrolytes for aqueous zinc-ion batteries (AZIBs) have drawn considerable interest due to their soft nature, offering potential to overcome challenges including reversibility and flexibility. As the most abundant natural polymer, cellulose is ideal for AZIB hydrogel electrolytes due to rich hydroxyls with stable hydrogen-bonded networks for water retention. However, conventional cellulose hydrogels suffer from low Zn²⁺ conductivity and insufficient mechanical robustness, usually requiring additional polymers to meet practical demands. This work reports a chemically neutral dissolution system combined with Keggin-type polyoxometalate as a bifunctional crosslinker and electrolyte modulator. This approach results in ultra-low solvation of Zn²⁺

SUBMITTER: Chen F 

PROVIDER: S-EPMC12561410 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature