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Updated: Jul 8, 2025
11:04
Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature
Published on: December 20, 2016
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Hydrated Eutectic Electrolyte Induced Bilayer Interphase for High-Performance Aqueous Zn-Ion Batteries with 100 °C
Jiandong Wan1, Rui Wang1, Zixiang Liu1
1Institutes of Physical Science and Information Technology, Leibniz International Joint Research Center of Materials Sciences of Anhui Province, Anhui Province Key Laboratory of Environment-Friendly Polymer Materials, Key Laboratory of Structure and Functional Regulation of Hybrid Material (Ministry of Education), Anhui University, Hefei, 230601, China.
Advanced Materials (Deerfield Beach, Fla.)
|December 13, 2023
Summary
This study introduces a novel hydrated eutectic electrolyte (HEE) for aqueous zinc-ion batteries (AZIBs), significantly extending their lifespan across a wide temperature range by preventing dendrite growth and parasitic reactions.
Area of Science:
- Electrochemistry
- Materials Science
- Energy Storage
Background:
- Aqueous zinc-ion batteries (AZIBs) face challenges like dendrite formation and performance decay.
- Harsh operating conditions limit the practical application of AZIBs.
Purpose of the Study:
- To develop a novel hydrated eutectic electrolyte (HEE) for stable AZIBs.
- To enhance AZIB performance over a wide temperature range (-50 to 50 °C).
Main Methods:
- Molecular dynamics simulations and spectroscopy to analyze electrolyte structure.
- Cryo-transmission electron microscopy to investigate interfacial layers.
- Electrochemical testing to evaluate battery performance.
Main Results:
- The HEE confines water molecules, extending the electrochemical window.
- In situ formation of a zincophobic/zincophilic bilayer interphase on the zinc anode.
- Uniform zinc deposition and suppressed side reactions were observed.
Conclusions:
- The HEE effectively stabilizes AZIBs against dendrite growth and parasitic reactions.
- The designed electrolyte enables stable AZIB operation from -50 to 50 °C.
- This strategy offers a scalable approach for wide-temperature AZIBs.
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