Trastorno químico de corto alcance en los cátodos de óxido de litio

Qidi Wang1, Zhenpeng Yao2, Jianlin Wang3

  • 1Department of Radiation Science and Technology, Delft University of Technology, Delft, The Netherlands. q.wang-11@tudelft.nl.

Nature
|May 8, 2024
PubMed
Resumen

La introducción de trastornos químicos de corto alcance (CSRD) en los materiales de cátodos de iones de litio mejora la estabilidad estructural y el rendimiento electroquímico. Este nuevo enfoque mejora la vida útil y la capacidad de carga de la batería al mitigar la degradación durante la carga.

Videos de Conceptos Relacionados

Trends in Lattice Energy: Ion Size and Charge02:54

Trends in Lattice Energy: Ion Size and Charge

An ionic compound is stable because of the electrostatic attraction between its positive and negative ions. The lattice energy of a compound is a measure of the strength of this attraction. The lattice energy (ΔHlattice) of an ionic compound is defined as the energy required to separate one mole of the solid into its component gaseous ions. For the ionic solid sodium chloride, the lattice energy is the enthalpy change of the process:
23.9K
Ionic Crystal Structures02:42

Ionic Crystal Structures

Ionic crystals consist of two or more different kinds of ions that usually have different sizes. The packing of these ions into a crystal structure is more complex than the packing of metal atoms that are the same size.
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
14.3K
Ionic Bonding and Electron Transfer02:48

Ionic Bonding and Electron Transfer

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. 
41.4K