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Updated: Oct 8, 2026

Zinc-Sponge Battery Electrodes that Suppress Dendrites
Published on: September 29, 2020
Hydrophobic and zincophilic COFs for stable and dendrite-free Zn 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.
Abstract:
Aqueous Zn-ion batteries face critical challenges of dendrite growth and interfacial side reactions. Herein, we report carefully-crafted ether-based COFs (E-COFs) with hydrophobicity and zincophilicity as protective layers on Zn anodes. The layer can effectively reduce interface corrosion and hydrogen evolution, homogenize ion flux and Zn deposition, and prolong cycling lifespan. Consequently, the Zn@E-COFs anode achieves an ultrahigh coulombic efficiency of nearly 100% over 1000 cycles and a superior capacity retention of 91% after 300 cycles in full cells.
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