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Updated: Aug 11, 2026

Zinc-Sponge Battery Electrodes that Suppress Dendrites
Published on: September 29, 2020
Zincophilic hydrogen-bonded organic frameworks enable dendrite-free zinc anodes
Ronghan Jiang1, Tiancun Liu1, Song Lu1
1Institute of New Energy, School of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing 312000, China. liutc@usx.edu.cn.
None:
A zincophilic HOF-coated 3D skeleton was developed for achieving stable zinc anodes. The HOF layer improves hydrophilicity, electrolyte infiltration, and zinc ion dispersion through zincophilic functional groups, suppresses dendrite formation, and lowers nucleation barriers. The dense HOF covering forces uniform zinc growth within interlayer gaps while protecting against electrolyte-induced corrosion. It also facilitates solvation removal and reduces activation energy. Consequently, the HOF-based electrode achieves an ultrahigh coulombic efficiency of 99% at 15 mA cm-2, superior cycling life of over 2000 h at 1 mA cm-2, and outstanding full-cell performance.
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