相关实验视频

Updated: Jun 13, 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

设计和优化用于高性能/离子电池的基于铁的超离子类导体阳极

Zihao Li¹, Yuanze Meng¹, Liying Wang¹

¹Key Laboratory of Advanced Structural Materials, Ministry of Education & Advanced Institute of Materials Science, and School of Materials Science and Engineering, Changchun University of Technology, Changchun, 130012, China.

|September 11, 2024

概括

这项研究将铁离子和空缺引入金属化物中,创建类似于超离子导体的通路. 这在离子和离子应用中显著改善了离子迁移和电池性能.

科学领域:

材料科学材料科学材料科学
电化学电化学电化学
计算化学的计算化学

背景情况:

金属化物是电池的有希望的阳极材料,因为它们具有很高的理论容量.
挑战包括体积膨胀和缓慢的离子迁移引起的循环稳定性和速率性能差.

研究的目的:

为了提高金属化物作为电池阳极材料的性能.
为了解决体积膨胀和缓慢离子迁移的问题.

主要方法:

利用多价铁离子来创建快速离子通路 (Fe-SSC).
引入了空缺,以进一步提高性能.
采用了第一原理计算和分子动力学模拟.

主要成果:

和的空缺减少了工作功能和吸附能量.
降低了迁移障碍,提高了Li+和Na+迁移率.
在不同的电流密度和循环计数下,在离子和离子半电池中实现了高可逆容量.

结论:

基于Fe-SSC和空缺的材料显示了离子和离子电池的巨大潜力.
该战略有效地克服了传统金属化阳极的局限性.

关键词:

离子电池是一种离子电池.离子电池是一种离子电池.阳极材料是一种阳极材料.循环稳定性的周期性稳定性业绩表现率是指业绩的表现率.

更多相关视频

Construction and Testing of Coin Cells of Lithium Ion Batteries

Construction and Testing of Coin Cells of Lithium Ion Batteries

Published on: August 2, 2012

Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature

Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature

Published on: December 20, 2016

相关概念视频

Ionic Bonding and Electron Transfer

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.