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Tuning Desolvation Kinetics with Perovskite-Type Ion-Conductive Modulators toward Low-Temperature Zn Metal Batteries
Wenbin Wang1,2, Xiaomin Cheng1,3, Jing Zhang4
1i-Lab & CAS Key Laboratory of Nanophotonic Materials and Devices, Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou, China.
Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
|January 25, 2026
Summary
Researchers developed a new coating for zinc anodes in aqueous zinc metal batteries. This coating enhances ion movement, preventing dendrite growth and improving battery stability at low temperatures.
Area of Science:
- Materials Science
- Electrochemistry
- Energy Storage
Background:
- Aqueous zinc metal batteries (AZMBs) offer a low-cost, safe, and sustainable energy storage solution.
- Challenges include incomplete Zn2+ desolvation and dendrite formation due to strong Zn2+-water interactions, hindering battery performance.
- Sluggish diffusion kinetics at the anode interface limit the efficiency and lifespan of AZMBs.
Purpose of the Study:
- To develop a kinetic modulator for enhancing Zn2+ desolvation and diffusion kinetics in AZMBs.
- To investigate the effectiveness of a perovskite-type ion-conductive material (ZnSn(OH)6) as a coating for Zn metal anodes.
- To mitigate dendrite growth and side reactions in AZMBs for improved stability and longevity.
Main Methods:
- Fabrication of a perovskite-type ion-conductive kinetic modulator (ZnSn(OH)6) coated on Zn metal anode (PIC-ZSH@Zn).
- Utilized theoretical simulations, COMSOL, time-of-flight secondary ion mass spectroscopy, Raman spectroscopy, and electrochemical analyses.
- Tested the electrochemical performance of the modified anode in AZMBs under low-temperature conditions (0°C).
Main Results:
- The PIC-ZSH@Zn anode demonstrated weakened Zn2+-water interactions, accelerated Zn2+ desolvation, and homogenized ion flux.
- The modified anode exhibited excellent reversible stability for 800 hours at 10 mA cm-2 with over 99% Coulombic efficiency at 0°C.
- The full cell with PIC-ZSH@Zn maintained nearly 80% capacity retention after 1000 cycles at 1.0 A g-1 at 0°C.
Conclusions:
- The perovskite-type ion-conductive kinetic modulator effectively promotes Zn2+ desolvation and diffusion kinetics.
- The PIC-ZSH@Zn anode significantly enhances the stability and performance of AZMBs, particularly at low temperatures.
- This strategy offers a promising approach for developing robust and efficient low-temperature AZMBs for practical energy storage applications.
Keywords:
desolvation effection‐dipole interactionskinetic acceleratorlow‐temperature operationzinc metal batteryMore Related Videos
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