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Related Concept Videos

Ion Exchange01:17

Ion Exchange

1.2K
Ion exchange chromatography separates charged molecules from a solution by reversibly exchanging them with mobile, or 'active', ions associated with the oppositely charged stationary phase. This method can be used to separate ions, soften and deionize water, and purify solutions. The polymers comprising the ion-exchange column are high-molecular-weight and chemically stable polymers, crosslinked to be porous and essentially insoluble. They are also functionalized with either acidic or...
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Ion-Exchange Chromatography01:09

Ion-Exchange Chromatography

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Ion-exchange chromatography, or IEC, is a technique for separating ions based on their affinity for the stationary phase. The stationary phase is a cross-linked polymer resin with covalently attached ionic functional groups. The functional groups can be either positively charged (cation exchangers) or negatively charged (anion exchangers). A cation exchanger consists of a polymeric anion and active cations, while an anion exchanger is a polymeric cation with active anions. The choice of...
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Batteries and Fuel Cells03:12

Batteries and Fuel Cells

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A battery is a galvanic cell that is used as a source of electrical power for specific applications. Modern batteries exist in a multitude of forms to accommodate various applications, from tiny button batteries such as those that power wristwatches to the very large batteries used to supply backup energy to municipal power grids. Some batteries are designed for single-use applications and cannot be recharged (primary cells), while others are based on conveniently reversible cell reactions that...
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Formation of Complex Ions03:45

Formation of Complex Ions

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A type of Lewis acid-base chemistry involves the formation of a complex ion (or a coordination complex) comprising a central atom, typically a transition metal cation, surrounded by ions or molecules called ligands. These ligands can be neutral molecules like H2O or NH3, or ions such as CN− or OH−. Often, the ligands act as Lewis bases, donating a pair of electrons to the central atom. These types of Lewis acid-base reactions are examples of a broad subdiscipline called coordination...
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Chemical Reactions in Aqueous Solutions03:03

Chemical Reactions in Aqueous Solutions

71.4K
Chemical substances interact in many different ways. Certain chemical reactions exhibit common patterns of reactivity. Due to the vast number of chemical reactions, it becomes necessary to classify them based on the observed patterns of interaction.
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Aqueous Solutions and Heats of Hydration02:42

Aqueous Solutions and Heats of Hydration

17.6K
Water and other polar molecules are attracted to ions. The electrostatic attraction between an ion and a molecule with a dipole is called an ion-dipole attraction. These attractions play an important role in the dissolution of ionic compounds in water.
When ionic compounds dissolve in water, the ions in the solid separate and disperse uniformly throughout the solution because water molecules surround and solvate the ions, reducing the strong electrostatic forces between them. This process...
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Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature
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Ultra-Thin Hybrid Ion Exchange Interlayer for High Performance Aqueous Zn Metal Batteries.

Tong Yang1, Weijia Meng2, Tan Trung Kien Huynh1

  • 1School of Chemistry and Physics, Queensland University of Technology, Brisbane, Queensland, Australia.

Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
|January 23, 2026
PubMed
Summary

A new hybrid interlayer enhances aqueous zinc batteries by preventing dendrite growth and improving stability. This innovation leads to significantly longer lifespans for zinc anodes in batteries.

Keywords:
aqueous zn metal batteriesfluorinated carbon dotsion‐exchange interlayersulfonated poly(ether ether ketone)zn anode

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Energy Storage

Background:

  • Aqueous zinc metal batteries (AZMBs) face challenges with poor cycling stability and zinc dendrite formation.
  • These issues limit the practical application and lifespan of AZMBs.

Purpose of the Study:

  • To develop a novel hybrid interlayer for zinc anodes to improve AZMB performance.
  • To address the limitations of cycling stability and dendritic growth in Zn anodes.

Main Methods:

  • Fabrication of an ultra-thin hybrid interlayer using sulfonated poly(ether ether ketone) (SPEEK) and fluorinated carbon dots (FCDs).
  • Characterization of the interlayer's properties and its effect on electrolyte solvation and ion transport.
  • In situ formation of a stable ZnF2-rich solid electrolyte interphase (SEI).
  • Testing of Zn||Zn symmetric cells and Zn||V2O5 full cells with the modified electrodes.

Main Results:

  • The SPEEK/FCD interlayer effectively regulates electrolyte solvation and promotes ion transport.
  • It induces the formation of a stable ZnF2-rich SEI, accommodating volume changes during cycling.
  • Zn||Zn symmetric cells demonstrated an ultralong lifespan exceeding 5500 hours.
  • Zn||V2O5 full cells retained 89.8% capacity after 1000 cycles, significantly outperforming bare Zn electrodes.

Conclusions:

  • The SPEEK/FCD hybrid interlayer significantly enhances the cycling stability and performance of AZMBs.
  • This approach offers a promising strategy for developing next-generation aqueous batteries.
  • The scalable fabrication method provides a valuable reference for improving other aqueous battery systems.