Related Experiment Video
Updated: May 6, 2026
06:58
Zinc-Sponge Battery Electrodes that Suppress Dendrites
Published on: September 29, 2020
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A Bottom-Up Zincophilic Gradient Design Enabling Long-Cycle-Life Zn Metal Anodes Under High Currents and Capacities.
Qiangqiang Zhang1, Yikun Duan1, Fei Teng1
1Shanghai Frontiers Science Center of Advanced Textiles, College of Textiles, Donghua University, Shanghai, China.
Advanced Materials (Deerfield Beach, Fla.)
|May 5, 2026
Summary
Researchers developed a novel zincophilic nanofiber mat that enables uniform metal deposition, significantly improving battery anode stability and lifespan. This breakthrough addresses challenges in high-energy electrochemical storage by reversing deposition pathways for dendrite-free performance.
Area of Science:
- Materials Science
- Electrochemistry
- Nanotechnology
Background:
- High-energy-density electrochemical storage relies on metal anodes.
- Sluggish ion transport at high current densities causes concentration polarization and dendritic growth, leading to battery failure.
Purpose of the Study:
- To design a host structure that reverses metal deposition pathways.
- To enable uniform bottom-up deposition and enhance metal anode stability.
Main Methods:
- Development of a bottom-up zincophilic gradient nanofiber mat.
- Thermodynamically controlled metal ion nucleation at the host base.
- Testing of zinc anodes in symmetric cells under high current densities and areal capacities.
Main Results:
- Achieved 98.9% Coulombic efficiency over 1972 cycles at 20 mA cm⁻².
- Demonstrated exceptional stability: 1095 h at 50 mA cm⁻² and 1328 h at 10 mAh cm⁻².
- Outperformed existing metal anode strategies significantly.
Conclusions:
- Gradient engineering is an effective strategy for improving metal anode performance.
- The developed zincophilic nanofiber mat enables long-life, high-performance electrochemical energy storage.
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