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Related Concept Videos

Ionic Bonds00:42

Ionic Bonds

121.8K
Overview
When atoms gain or lose electrons to achieve a more stable electron configuration they form ions. Ionic bonds are electrostatic attractions between ions with opposite charges. Ionic compounds are rigid and brittle when solid and may dissociate into their constituent ions in water. Covalent compounds, by contrast, remain intact unless a chemical reaction breaks them.
Opposing Charges Hold Ions Together in Ionic Compounds
Ionic bonds are reversible electrostatic interactions between ions...
121.8K
Molecular and Ionic Solids02:54

Molecular and Ionic Solids

17.6K
Crystalline solids are divided into four types: molecular, ionic, metallic, and covalent network based on the type of constituent units and their interparticle interactions.
Molecular Solids
Molecular crystalline solids, such as ice, sucrose (table sugar), and iodine, are solids that are composed of neutral molecules as their constituent units. These molecules are held together by weak intermolecular forces such as London dispersion forces, dipole-dipole interactions, or hydrogen bonds, which...
17.6K
Ion Exchange01:17

Ion Exchange

663
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...
663
Electrolyte and Nonelectrolyte Solutions02:21

Electrolyte and Nonelectrolyte Solutions

63.9K
Substances that undergo either a physical or a chemical change in solution to yield ions that can conduct electricity are called electrolytes. If a substance yields ions in solution, that is, if the compound undergoes 100% dissociation, then the substance is a strong electrolyte. Complete dissociation is indicated by a single forward arrow. For example, water-soluble ionic compounds like sodium chloride dissociate into sodium cations and chloride anions in aqueous solution.
63.9K
Ion Channels01:19

Ion Channels

88.1K
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...
88.1K
Ionic Bonding and Electron Transfer02:48

Ionic Bonding and Electron Transfer

42.3K
Ions are atoms or molecules bearing an electrical charge. A cation (a positive ion) forms when a neutral atom loses one or more electrons from its valence shell, and an anion (a negative ion) forms when a neutral atom gains one or more electrons in its valence shell. Compounds composed of ions are called ionic compounds (or salts), and their constituent ions are held together by ionic bonds: electrostatic forces of attraction between oppositely charged cations and anions. 
42.3K

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Related Experiment Video

Updated: Sep 14, 2025

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
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Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications

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Developing Dynamic Ion Transport Channels in Polymer Solid Electrolytes for High-Performance Lithium Metal Batteries.

Qiang Lv1, Li-An Li2, Xi Zhang3

  • 1Department of Materials Science and Engineering, National University of Singapore, Singapore 117574, Republic of Singapore.

Journal of the American Chemical Society
|July 24, 2025
PubMed
Summary

This study introduces sulfone-modified solid polymer electrolytes (SPEs) for safer lithium metal batteries. The novel design enhances ionic conductivity and interfacial stability, enabling long-lasting battery performance.

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Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques
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Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques

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Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
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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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Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques
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Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Polymer Science

Background:

  • Solid polymer electrolytes (SPEs) offer enhanced safety and electrochemical stability for lithium metal batteries.
  • Key challenges include limited ionic conductivity and poor interfacial stability, hindering practical applications.
  • Developing advanced SPEs is crucial for next-generation energy storage.

Purpose of the Study:

  • To enhance ionic conductivity and interfacial stability in polyacrylic-based SPEs.
  • To investigate the effect of incorporating sulfone (SL) for creating dynamic ion transport channels.
  • To enable the development of high-performance, long-lifetime lithium metal batteries.

Main Methods:

  • Incorporation of trace amounts of sulfone (SL) into polyacrylic-based SPEs.
  • Molecular dynamics simulations to analyze ion transport mechanisms.
  • Experimental validation including electrochemical performance and interfacial analysis.
  • Fabrication and testing of LFP|In situ-SL2|Li battery cells.

Main Results:

  • Optimal SL incorporation (in situ-SL2) created dynamic ion transport channels via gradient ion-dipole interactions.
  • Enhanced Li+ solvation and reduced energy barriers for ion hopping, boosting ionic conductivity and transference numbers.
  • Formation of a stable, inorganic-rich solid electrolyte interphase (SEI), suppressing dendrite growth.
  • Achieved over 91.7% capacity retention after 2000 cycles in LFP|In situ-SL2|Li cells.

Conclusions:

  • The novel in situ-SL2 SPE effectively addresses limitations of traditional SPEs.
  • This approach significantly improves ionic conductivity and interfacial stability for lithium metal batteries.
  • Provides valuable insights for designing safer, high-performance SPEs for long-lifetime applications.