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Dynamic hydrogen-bond network manipulated binder chemistry enables shuttle-free and wide-temperature aqueous zinc–iodine batteries
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DOI:10.1016/j.mtchem.2026.103649.png)
Abstract
En 中文
• The HIWP binder contains abundant polar functional groups, which exhibits strong chemical adsorption toward iodine species. This adsorption capability not only mitigates the shuttle effect of polyiodides and shields the Zn metal anode from polyiodide-induced corrosion, but also improves the utilization efficiency of the iodine cathode. • HIWP binder exhibits excellent wetting properties, which is conducive to boosting the ion conductivity and minimizing the electrode polarization effects. • The generated dynamic H-bond network is capable of fabricating 3D cross-linking networks, which boosts electronic conductivity and accelerates the iodine conversion reaction kinetics. • The formed dynamic H-bond network between the –NH2 and –C=O groups markedly enhance the mechanical strength and adhesion ability of HIWP binder, maintaining the structural stability of electrode during harsh working conditions.
Keywords:
HIWP binder
dynamic hydrogen-bond network
iodine species adsorption
zinc–iodine battery
shuttle effect mitigation
Journal
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6.7
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3.6K
Citations:
1.4W
