相关实验视频

Updated: Sep 19, 2025

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

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

Published on: November 11, 2013

基于本地协调环境的离子导体的探索使用晶体现场指纹

Songjia Kong¹, Naoki Matsui², Satoshi Hori²

¹Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Institute of Science Tokyo, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8502, Japan.

Journal of the American Chemical Society

|June 9, 2025

概括

研究人员使用半监督学习来发现离子电池的新固态电解质. 他们发现Li3.1La0.9Sr0.1P2S8是一种先进电池技术的有前途材料.

科学领域:

材料科学
电化学
计算化学

背景情况:

开发用于离子电池的高性能固态电解质对于下一代储能至关重要.
许多潜在的含电解质化合物仍未被发现,阻碍了电池的开发.

研究的目的:

通过半监督学习方法加速新离子导体的发现.
通过关注当地协调环境来确定有前途的固态电解质候选物.

主要方法:

使用半监督学习与四个结构表示描述器进行本地协调.
对3835个含结构的数据集进行聚合聚类.
通过分子动力学模拟和实验导电性测量评估入围化合物.

主要成果:

从集群选中确定了147个潜在的离子导体候选者.
最初发现了Li3LaP2S8,但其导电性较低.
在Li3LaP2S8中优化含量以产生Li3.1La0.9Sr0.1P2S8在298K的导电率为2.1 × 10^-6 S cm^-1.

结论:

在发现固态电解质的先进材料方面证明了半监督学习的有效性.
报告称Li3LaP2S8是一种新型固态电解质候选物,其优化成分显示出更好的导电性.
为加速下一代固态电池技术的发展提供了有价值的方法.

更多相关视频

$In Situ Neutron Powder Diffraction Using Custom-made Lithium-ion Batteries$ 11:25

In Situ Neutron Powder Diffraction Using Custom-made Lithium-ion Batteries

Published on: November 10, 2014

Failure Analysis of Batteries Using Synchrotron-based Hard X-ray Microtomography

Failure Analysis of Batteries Using Synchrotron-based Hard X-ray Microtomography

Published on: August 26, 2015

相关概念视频

Crystal Field Theory - Octahedral Complexes

Crystal Field Theory - Octahedral Complexes

Crystal Field Theory
To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between the electrons from the ligands and the electrons in the unhybridized d orbitals of the central metal atom has been developed. This electrostatic model is crystal field theory (CFT). It helps to understand, interpret, and predict the colors, magnetic behavior, and some structures of coordination compounds of transition metals.
CFT focuses on...

Trends in Lattice Energy: Ion Size and Charge

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:

Ionic Crystal Structures

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...