Jove
Visualize
Contáctanos
JoVE
x logofacebook logolinkedin logoyoutube logo
ACERCA DE JoVE
Visión GeneralLiderazgoBlogCentro de Ayuda JoVE
AUTORES
Proceso de PublicaciónConsejo EditorialAlcance y PolíticasRevisión por ParesPreguntas FrecuentesEnviar
BIBLIOTECARIOS
TestimoniosSuscripcionesAccesoRecursosConsejo Asesor de BibliotecasPreguntas Frecuentes
INVESTIGACIÓN
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchivo
EDUCACIÓN
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualCentro de Recursos para ProfesoresSitio de Profesores
Términos y Condiciones de Uso
Política de Privacidad
Políticas

Videos de Conceptos Relacionados

Electrolytes: van't Hoff Factor03:08

Electrolytes: van't Hoff Factor

33.6K
Colligative Properties of Electrolytes
The colligative properties of a solution depend only on the number, not on the identity, of solute species dissolved. The concentration terms in the equations for various colligative properties (freezing point depression, boiling point elevation, osmotic pressure) pertain to all solute species present in the solution. Nonelectrolytes dissolve physically without dissociation or any other accompanying process. Each molecule that dissolves yields one...
33.6K
Electrolyte and Nonelectrolyte Solutions02:21

Electrolyte and Nonelectrolyte Solutions

63.8K
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.
63.8K
Ionic Strength: Effects on Chemical Equilibria01:19

Ionic Strength: Effects on Chemical Equilibria

1.6K
The addition of an inert ionic compound increases the solubility of a sparingly soluble salt. For example, adding potassium nitrate to a saturated solution of calcium sulfate significantly enhances the solubility of calcium sulfate. Le Châtelier's principle cannot predict this shift in the equilibrium. Instead, this could be explained in terms of changes in the effective concentration of the ions in solution in the presence of added inert salt.
In this solution, the primary...
1.6K
Introduction to Electrolytes01:33

Introduction to Electrolytes

12.4K
In humans, electrolytes play a vital role in various physiological processes. Balancing electrolyte levels is essential for normal body functions; their imbalance can be life-threatening. The major electrolytes include sodium, potassium, chloride, calcium, phosphate, and bicarbonate. They are primarily involved in physiological processes, such as nerve signal transmission, membrane trafficking, muscle contraction, buffering body fluids, and balancing water levels in the body.
Role of Sodium
One...
12.4K
Aqueous Solutions and Heats of Hydration02:42

Aqueous Solutions and Heats of Hydration

15.0K
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...
15.0K
Molecular and Ionic Solids02:54

Molecular and Ionic Solids

17.5K
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...
17.5K

También podría leer

Artículos Relacionados

Artículos vinculados a este trabajo por autores compartidos, revista y gráfico de citas.

Ordenar por
Same author

Ionic liquid conductivity models by symbolic regression.

Physical chemistry chemical physics : PCCP·2026
Same author

Salt Concentration Control of Polysulfide Dissolution, Diffusion, and Reactions in Lithium-Sulfur Battery Electrolytes.

ACS applied energy materials·2025
Same author

Hückel anion based concentrated electrolytes for lithium-sulfur batteries.

Physical chemistry chemical physics : PCCP·2025
Same author

Local Structure and Dynamics in Solvent-Free Molten Salt <math><semantics><mrow><msup><mrow><mi>Ca</mi></mrow> <mrow><mn>2</mn> <mo>+</mo></mrow></msup></mrow> <annotation>$\left(\text{Ca}\right)^{2 &#x00026;amp;amp;amp;amp;amp;amp;plus;}$</annotation></semantics></math> -Electrolytes.

Chemphyschem : a European journal of chemical physics and physical chemistry·2025
Same author

Transport Number Determination and Relevance for Lithium Metal Batteries Using Localized Highly Concentrated Electrolytes.

Chemistry of materials : a publication of the American Chemical Society·2025
Same author

Anhydrous salts for non-corrosive aluminium battery electrolytes.

Chemical communications (Cambridge, England)·2025
Same journal

Grammatical evolution-based design of nucleotic analogs for SARS-CoV-2's replication-transcription complex.

Physical chemistry chemical physics : PCCP·2026
Same journal

Optical frequency comb Fourier transform spectroscopy of the CH<sub>2</sub><sup>79</sup>Br<sup>81</sup>Br, CH<sub>2</sub><sup>79</sup>Br<sub>2</sub>, and CH<sub>2</sub><sup>81</sup>Br<sub>2</sub> isotopologues in the 1180-1210 cm<sup>-1</sup> region.

Physical chemistry chemical physics : PCCP·2026
Same journal

First-principles modeling of polysilazane-derived SiCNH ceramics: insights into the organization of the free-carbon phase.

Physical chemistry chemical physics : PCCP·2026
Same journal

Determining the binding strength of phenolic anchoring groups on hydrated WO<sub>3</sub> surfaces.

Physical chemistry chemical physics : PCCP·2026
Same journal

Activation of methane by the tantalum trioxide anion, TaO<sub>3</sub><sup></sup>.

Physical chemistry chemical physics : PCCP·2026
Same journal

Temperature-dependent recombination dynamics in BH/ZnBr<sub>2</sub> Co-doped CsPbI<sub>3</sub> thin films.

Physical chemistry chemical physics : PCCP·2026
Ver todos los artículos relacionados

Video Experimental Relacionado

Updated: Sep 9, 2025

Preparation of Binary and Ternary Deep Eutectic Systems
06:15

Preparation of Binary and Ternary Deep Eutectic Systems

Published on: October 31, 2019

12.1K

Heterogeneidad a nivel molecular en electrolitos eutécticos profundos

Mirna Alhanash1, Carolina Cruz1, Patrik Johansson1,2

  • 1Department of Physics, Chalmers University of Technology, 412 96 Göteborg, Sweden. patrik.johansson@chalmers.se.

Physical chemistry chemical physics : PCCP
|September 5, 2025
PubMed
Resumen
Este resumen es generado por máquina.

Los electrolitos eutecticos profundos muestran estructuras moleculares variables que afectan el rendimiento de la batería de litio. Equilibrar la heterogeneidad molecular y las redes de enlaces de hidrógeno es clave para el transporte eficiente de iones en las baterías de próxima generación.

Más Videos Relacionados

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
05:33

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications

Published on: August 12, 2013

21.8K
Determination of Thermodynamic Properties of Alkaline Earth-liquid Metal Alloys Using the Electromotive Force Technique
12:02

Determination of Thermodynamic Properties of Alkaline Earth-liquid Metal Alloys Using the Electromotive Force Technique

Published on: November 3, 2017

13.3K

Videos de Experimentos Relacionados

Last Updated: Sep 9, 2025

Preparation of Binary and Ternary Deep Eutectic Systems
06:15

Preparation of Binary and Ternary Deep Eutectic Systems

Published on: October 31, 2019

12.1K
Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
05:33

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications

Published on: August 12, 2013

21.8K
Determination of Thermodynamic Properties of Alkaline Earth-liquid Metal Alloys Using the Electromotive Force Technique
12:02

Determination of Thermodynamic Properties of Alkaline Earth-liquid Metal Alloys Using the Electromotive Force Technique

Published on: November 3, 2017

13.3K

Área de la Ciencia:

  • Ciencias de los materiales
  • La electroquímica
  • Química computacional

Sus antecedentes:

  • Los electrolitos eutecticos profundos (DEE) son prometedores para las baterías de litio avanzadas.
  • Comprender el vínculo entre las propiedades moleculares del DEE y el rendimiento de la batería es crucial.
  • El conocimiento actual sobre el comportamiento molecular del DEE y su impacto macroscópico es limitado.

Objetivo del estudio:

  • Investigar las propiedades a nivel molecular de los DEE simples mediante simulaciones de dinámica molecular.
  • Elucidar la relación entre las características de los aniones, la heterogeneidad molecular y el transporte de iones.
  • Identificar los factores clave para optimizar los DEE para las baterías de litio de alto rendimiento.

Principales métodos:

  • Se utilizaron simulaciones de dinámica molecular (DM) para estudiar los DEE compuestos por N-metil-acetamida (NMA) y sales de litio (LiBF4, LiDFOB, LiBOB) en una proporción molar de 1:4.
  • La heterogeneidad a nivel molecular (MLH) analizada, incluida la estructura local, la coordinación y el trastorno dinámico.
  • Se examinó el impacto del tamaño y la simetría de los aniones en la red de enlaces de hidrógeno (HB) y la agregación iónica.

Principales resultados:

  • El tamaño y la simetría de los aniones influyen significativamente en la MLH y en la heterogeneidad de la red HB.
  • Los aniones más grandes y asimétricos conducen a una red HB más localizada y a un mayor emparejamiento iónico.
  • Los DEE con un MLH más alto exhiben una auto-difusión iónica más lenta debido al obstáculo estérico y las redes de HB localizadas.

Conclusiones:

  • La heterogeneidad a nivel molecular y las características de la red HB son determinantes críticos del rendimiento del DEE.
  • La optimización de los DEE requiere un cuidadoso equilibrio entre las propiedades de la red MLH y HB para un transporte eficiente de iones.
  • Los resultados proporcionan ideas para el diseño de baterías de litio de próxima generación con electrolitos DEE mejorados.