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Updated: Jul 1, 2025
06:58
Zinc-Sponge Battery Electrodes that Suppress Dendrites
Published on: September 29, 2020
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Constructing Dynamic Anode/Electrolyte Interfaces Coupled with Regulated Solvation Structures for Long-Term and
Mei-Chen Han1,2, Jia-Hao Zhang1, Chun-Yu Yu1
1State Key Laboratory of Organic-Inorganic Composites, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China.
Angewandte Chemie (International Ed. in English)
|March 4, 2024
Summary
Adding tris(hydroxymethyl)aminomethane (Tris) to aqueous zinc ion batteries improves zinc plating and stripping. This novel additive creates a dynamic layer, enhancing battery lifespan and stability for energy storage.
Area of Science:
- Electrochemistry
- Materials Science
Background:
- Aqueous zinc ion batteries (AZIBs) offer safe, high-energy storage.
- Zinc anode side reactions limit AZIB performance.
Purpose of the Study:
- To introduce tris(hydroxymethyl)aminomethane (Tris) as an additive for AZIBs.
- To enhance zinc plating/stripping reversibility and battery longevity.
Main Methods:
- Investigated Tris additive in AZIBs.
- Analyzed Tris's effect on Zn2+ solvation and anode surface adsorption.
- Studied the in situ dynamic adsorption layer formation.
Main Results:
- Tris additive enabled long-term, reversible Zn plating/stripping.
- A dynamic adsorption layer on the Zn anode was formed.
- Achieved 2600 hours cycle life in Zn||Zn symmetric cells.
- Demonstrated high capacity and stability in Zn||MnO2 full cells.
Conclusions:
- Tris additive effectively regulates Zn2+ behavior and suppresses side reactions.
- The dynamic adsorption layer is key to improved AZIB performance.
- Tris shows promise for practical, high-performance AZIB applications.
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