Structure-property insights into CO32--crosslinked chitosan hydrogel membranes: Facile synthesis via gradient crosslinking of quasi-solid electrolytes for electric double layer capacitors with remarkable cycle lives

2026-08-12

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Dipankar Hazarika

Marjo A. Kichu

Nuphizo Shijoh

Duangailung Kamei

Nurul Alam Choudhury *

DOI：10.1016/j.jpowsour.2026.241152

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• Facile gradient ionic crosslinking produces robust chitosan hydrogel electrolytes. • Gradient architecture governs ion transport and enhances structural stability. • GCME-0.5M exhibits the best electrochemical performance among all GCMEs. • GCME-0.5M achieves an ionic conductivity of 5.41 × 10−4 S cm−1. • EDLC-0.5M demonstrates stable operation of 51,500 charge-discharge cycles.

Structure-property insights into CO32--crosslinked chitosan hydrogel membranes: Facile synthesis via gradient crosslinking of quasi-solid electrolytes for electric double layer capacitors with remarkable cycle lives

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