相关实验视频

Updated: Jun 20, 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

用于高性能硫电池的围型分子电催化剂

Zhihua Wang¹, He Zhu¹, Jun Jiang²

¹Herbert Gleiter Institute of Nanoscience, School of Materials Science and Engineering, Nanjing University of Science and Technology, 210094, Nanjing, China.

Angewandte Chemie (International ed. in English)

|July 22, 2024

概括

一种基于皇冠以太的新型聚合物作为分子,通过控制硫氧化还原反应并防止聚硫化物穿以提高能量密度来提高硫电池性能.

科学领域:

电化学电化学电化学
材料科学材料科学材料科学
储能储能储能储能储能储能

背景情况:

开发高能量密度的-硫 (Li-S) 电池受到硫物种缓慢的氧化还原动力学的阻碍.
可溶性聚硫化物中间体的运输加剧了Li-S电池的性能退化.

研究的目的:

设计和合成一种用于Li-S电池的新型分子电催化剂.
为了应对缓慢的氧化还原动力学和聚硫化物穿的挑战.
为了提高Li-S电池的整体性能和循环稳定性.

主要方法:

在现场聚合 bis ((3,4-二博) -18-皇冠-6 (BD18C6) 与聚硫化离子.
基于皇冠以太 (CE) 的聚合物作为阴极接口电催化剂的构建.
聚合物的结构和电化学性质的表征.

主要成果:

基于CE的聚合物作为一个空间的聚合物.
围围是一个围.
为了限制硫的物种和控制氧化还原特性.
催化剂有效地减轻了聚硫化物穿效应,并增强了硫氧化还原活性.
该材料促进了3D堆叠硫化 (Li2S) 的形成,提高了速度性能和循环稳定性.

结论:

开发的式电催化剂显著提高了Li-S电池的性能.
这种方法为下一代高能量密度电池提供了一个有希望的战略.
这些发现可能会激发类似的多相电化学能量转换过程的进步.

关键词:

电解质添加剂电解质添加剂硫电池的使用方法分子电催化剂分子电催化剂穿效应穿效应硫的转化转化硫的转化

更多相关视频

Zinc-Sponge Battery Electrodes that Suppress Dendrites

Zinc-Sponge Battery Electrodes that Suppress Dendrites

Published on: September 29, 2020

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications

Published on: August 12, 2013

相关概念视频

Batteries and Fuel Cells

Batteries and Fuel Cells

A battery is a galvanic cell that is used as a source of electrical power for specific applications. Modern batteries exist in a multitude of forms to accommodate various applications, from tiny button batteries such as those that power wristwatches to the very large batteries used to supply backup energy to municipal power grids. Some batteries are designed for single-use applications and cannot be recharged (primary cells), while others are based on conveniently reversible cell reactions that...