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Updated: Sep 19, 2025

Zinc-Sponge Battery Electrodes that Suppress Dendrites
Published on: September 29, 2020
Trace Sulfonic Acid Additives Modulate Zn2+ Transport Through SEI and Desolvation for Highly Reversible Zinc Anodes
Minghai Li1, Shuang Han1, Qiyu Fan1
1Key Laboratory of Functional Inorganic Material, Ministry of Education, Department of Macromolecular Materials and Engineering, School of Chemical, Chemical Engineering and Materials, Heilongjiang University, Harbin, 150086, P. R. China.
None:
Zinc metal, a promising anode material, suffers from unpredictable side reactions and dendrite growth. These problems reduce its cycle performance and coulombic efficiency. To solve them, this study uses a bifunctional additive, sodium 1,2-dihydroxyanthraquinone-3-sulfonate (ARS). ARS modifies the solvation structure and forms a micro-hydrophobic interface. As a result, the Zn anode shows good reversibility. The Zn//Zn symmetrical battery can cycle for over 4000 h at 1 mA cm-2. The Zn//Cu half-cell can cycle 4000 times at 4 mA cm-2. The V10O24·12H2O//Zn full cell also shows high capacity retention after 2500 cycles. This work offers a way to choose low-cost additives for large-scale ZIB deployment.
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