相关实验视频

Updated: Jun 24, 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

SO₃-COF@Al₂O₃ 改性阴极电极材料增强了硫电池的循环能力

Bingxin Jia¹, Wenhui Liu¹, Chan Yao¹

¹Key Laboratory of Preparation and Applications of Environmental Friendly Materials, Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education (Jilin Normal University), Ministry of Education, Changchun, China. xuyh198@163.com.

Chemical communications (Cambridge, England)

|June 3, 2024

概括

一种新的含硫材料,SO3-COF@Al2O3,可以有效地抑制聚硫化在硫电池中的穿. 这种先进的电极材料表现出卓越的循环稳定性和高容量保留,用于储能应用.

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
纳米技术纳米技术

背景情况:

硫电池 (LSB) 提供高的理论能量密度,但受到聚硫化物穿效应的影响.
开发稳定的电极材料对于推进LSB技术至关重要.

研究的目的:

为了合成和表征一种新的共价有机框架 (SO3-COF) 功能化合金复合物用于LSBs.
评估SO3-COF@Al2O3材料在减轻穿效应和提高循环稳定的性能.

主要方法:

采用了一步式方法在酸上开发SO3-COF,形成SO3-COF@Al2O3.3.
该材料装载了硫,并在LSB中作为电极进行了测试.
评估了电化学性能,包括特定容量和循环稳定性.

主要成果:

SO3-COF@Al2O3有效地抑制了可溶性多硫化物 (LiPSs) 的穿效应.
与原始的SO3-COF相比,复合材料显示了增强的循环行为.
在0.05C时实现了1141mAhg-1的初始排放特定容量.
在500个循环后,保持了466mA hg-1的高容量,每周期的低衰变率为0.08%.

结论:

SO3-COF@Al2O3复合材料是提高硫电池性能的一个有希望的材料.
硫酸组和酸支持有效地解决了穿效应,从而提高了电化学稳定性和寿命.

更多相关视频

Protocol of Electrochemical Test and Characterization of Aprotic Li-O2 Battery

Protocol of Electrochemical Test and Characterization of Aprotic Li-O2 Battery

Published on: July 12, 2016

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

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...