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Related Concept Videos

Ion Channels01:19

Ion Channels

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The movement of ions like sodium, potassium, and calcium into and out of the cell is essential to maintain the electrochemical gradient in living cells. The ion channels—a class of membrane transport proteins—help maintain this ionic gradient for the smooth functioning of physiological activities such as maintaining cell size and volume, conducting nerve impulses, and gas and nutrient exchange.
Ion channels are specialized integral membrane proteins on the plasma membrane that allow...
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Non-gated Ion Channels01:24

Non-gated Ion Channels

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Ion channels are specialized proteins on the plasma membrane that allow charged ions to pass down their electrochemical gradient. Their main function is to maintain the membrane potential which is critical for cell viability. These channels are either gated or non-gated and can transport more than a thousand ions within milliseconds for the cellular event to occur.
Compared to the gated ion channels, the non-gated channels, also known as leakage or passive channels, have no gating mechanism....
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Non-gated Ion Channels01:24

Non-gated Ion Channels

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Voltage-gated Ion Channels01:26

Voltage-gated Ion Channels

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Voltage-gated ion channels are transmembrane proteins that open and close in response to changes in the membrane potential. They are present on the membranes of all electrically excitable cells such as neurons, heart, and muscle cells.
Generally, all voltage-gated ion channels have a 'voltage-sensing domain' that spans the lipid bilayer. The charged residues in the sensor move in response to the membrane potential changes that open the channel allowing ions movement. There are several types of...
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Voltage-gated Ion Channels01:26

Voltage-gated Ion Channels

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Electrochemical Systems01:24

Electrochemical Systems

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Electrochemical systems provide a fascinating insight into the dynamic interplay of charged species within various phases. One notable example is the interaction between a membrane permeable to K⁺ ions but not to Cl⁻ ions, separating an aqueous KCl solution from pure water. As K⁺ ions diffuse through the membrane, they generate net charges on each phase, leading to a potential difference between them.Similarly, when a piece of Zn is immersed in an aqueous ZnSO₄ solution,...
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Updated: Apr 21, 2026

Zinc-Sponge Battery Electrodes that Suppress Dendrites
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Zinc-Sponge Battery Electrodes that Suppress Dendrites

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Inter-molecular Channel Gated Ion Migration for High Performance Zinc-ion Batteries.

Kunjie Zhu1, Chengfeng Li1, Chaotian Ni1

  • 1Institute of Energy Materials Science (IEMS), University of Shanghai for Science and Technology, Shanghai, P. R. China.

Angewandte Chemie (International Ed. in English)
|April 20, 2026
PubMed
Summary
This summary is machine-generated.

Amphiphilic surfactants act as ion channel mediators to suppress dendrite growth in aqueous zinc-ion batteries (AZIBs). This strategy guides uniform zinc deposition, enhancing battery stability and cycle life.

Keywords:
aqueous zinc‐ion batteriesbiomimetic interfacecationic surfactantsion channel construction

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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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Area of Science:

  • Materials Science
  • Electrochemistry
  • Chemical Engineering

Background:

  • Aqueous zinc-ion batteries (AZIBs) face significant challenges from dendrite growth and side reactions, limiting their practical application.
  • Developing stable and efficient AZIBs is crucial for next-generation energy storage.

Purpose of the Study:

  • To investigate the use of amphiphilic surfactants as ion channel mediators to suppress dendrite formation in AZIBs.
  • To optimize surfactant structure for enhanced zinc deposition and battery performance.

Main Methods:

  • Systematic investigation of cationic surfactants with varying alkyl chain lengths as ion channel mediators.
  • Characterization of surfactant adsorption, ion channeling, and electric double layer (EDL) regulation.
  • Performance evaluation of Zn||Cu asymmetric cells, Zn||Zn symmetric cells, and Zn||VO2 pouch cells.

Main Results:

  • Decyltrimethylammonium chloride demonstrated optimal ion channeling capability, promoting dense and uniform Zn2+ flux.
  • The surfactant strategy significantly improved Coulombic efficiency (99.58% over 3000 cycles) in asymmetric cells.
  • Stable operation was achieved in symmetric cells (800 h at 10 mA cm-2) and pouch cells (300 cycles).

Conclusions:

  • Amphiphilic surfactants effectively mediate ion channels, guiding directional zinc deposition and suppressing dendrites.
  • This surfactant-enabled ion-regulating strategy offers a low-cost, highly effective solution for advancing AZIB technology.
  • The findings provide a new perspective for developing stable and practical AZIBs.