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Related Concept Videos

Molecular and Ionic Solids02:54

Molecular and Ionic Solids

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Crystalline solids are divided into four types: molecular, ionic, metallic, and covalent network based on the type of constituent units and their interparticle interactions.
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Atoms and molecules interact through bonds (or forces): intramolecular and intermolecular. The forces are electrostatic as they arise from interactions (attractive or repulsive) between charged species (permanent, partial, or temporary charges) and exist with varying strengths between ions, polar, nonpolar, and neutral molecules. The different types of intermolecular forces are ion–dipole, dipole–dipole, hydrogen bonds, and dispersion; among these, dipole–dipole, hydrogen...
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Various dissolution theories provide insight into the factors that influence the dissolution rate. Danckwerts' Model suggests that turbulence, rather than a stagnant layer, characterizes the dissolution medium at the solid-liquid interface. In this model, the agitated solvent contains macroscopic packets that move to the interface via eddy currents, facilitating the absorption and delivery of the drug to the bulk solution. The regular replenishment of solvent packets maintains the...
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Ionic Bonding and Electron Transfer02:48

Ionic Bonding and Electron Transfer

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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. 
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Ionic Bonds00:42

Ionic Bonds

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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.
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Interfacial electrochemical methods focus on the phenomena occurring at the boundary between an electrode and a solution, as opposed to bulk methods that concentrate on the solution's overall properties. These interfacial methods are classified as either static or dynamic based on the presence of a nonzero current in the electrochemical cell and the consistency of analyte concentrations. Static methods, such as potentiometry, measure the cell's potential without any significant current...
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Updated: Jun 13, 2025

Screening of Coatings for an All-Solid-State Battery Using In Situ Transmission Electron Microscopy
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A theoretical perspective on solid-state ionic interfaces.

Javier Carrasco1,2

  • 1Centre for Cooperative Research on Alternative Energies (CIC energiGUNE), Basque Research and Technology Alliance (BRTA), Alava Technology Park, Albert Einstein 48 , Vitoria-Gasteiz 01510, Spain.

Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
|September 9, 2024
PubMed
Summary
This summary is machine-generated.

Understanding solid-state ionic interfaces is crucial for advanced batteries. This perspective reviews atomic-level ion dynamics and computational methods for optimizing ionic mobility and interfacial properties in solid electrolytes.

Keywords:
ab initio modellinginterfacial dynamicsionic conductorsionic transport mechanismsmachine learning in materials sciencesolid electrolytes

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Computational Materials Science

Background:

  • Solid-state ionic conductors are vital for energy storage and conversion.
  • Controlling charge carriers at interfaces is key for high-performance electrochemical devices.
  • Atomic-level ion dynamics at interfaces like grain boundaries remain a challenge.

Purpose of the Study:

  • To provide a theoretical overview of solid-state ionic interfaces.
  • To critically assess recent advancements in solid electrolyte research for batteries.
  • To highlight the importance of understanding interfacial phenomena.

Main Methods:

  • Review of fundamental concepts: diffusion model and chemical potential.
  • Discussion of space-charge region modeling for electrified interfaces.
  • Exploration of computational methods: DFT and machine-learned potentials.

Main Results:

  • Elucidation of charge redistribution mechanisms at electrified interfaces.
  • Insights into atomic-scale ion dynamics and interfacial reactivity.
  • Demonstration of computational tools for interface analysis.

Conclusions:

  • A deeper understanding of solid-state ionic interfaces is essential for battery development.
  • Advanced computational methods offer powerful tools for materials design.
  • Further research into interfacial phenomena will drive innovation in energy technologies.