相关实验视频

Updated: Jun 21, 2026

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications

Published on: August 12, 2013

一种阻燃型环酸作为离子电解质组件用于离子电池的Si-石墨阳极

Yulia Vlasova^1,2, Sergei Potapov¹, Mikhail Kokontsev¹

¹Moscow Center for Advanced Studies, Moscow 123592, Russia.

International journal of molecular sciences

|January 10, 2026

概括

基酸 (HFEPN) 通过赋予阻燃性质来提高离子电池的安全性. 然而,在高度下,HFEPNPN可以

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
电池技术电池技术

背景情况:

-石墨阳极增加离子电池的能量密度,但遭受周期性不稳定.
离子电池的能量密度增加引发了由于火灾风险的安全问题.

研究的目的:

评价基基酸 (HFEPN) 作为用于石墨阳极的多功能电解质添加剂.
为了减轻离子电池的周期性不稳定性和易燃性问题.

主要方法:

用自灭时间测试评估电解质可燃性.
在加快循环下,Si/C复合材料红黑色NMC袋细胞中评估了电化学性能.
分析了固体电解质界相 (SEI) 形成和界面动力学.

主要成果:

在15%重量负载下,HFEPN完全赋予电解质阻燃性能.
与HFEPN一起观察到一个稳定的SEI与增强的界面动力学.
循环稳定性没有得到改善;具有15%重量HFEPN的细胞在70个循环后保持了43%的容量,类似于参考细胞 (46.5%).

结论:

HFEPN是一种有效的阻燃剂和离子电池的SEI修饰剂.
由于电解质粘度增加和扩散限制,高HFEPN度限制了阳极的实际益处.
未来的分子设计应该专注于改善运输特性,同时保持阻燃性和SEI优势.

关键词:

这是一种Si/C复合材料.骑自行车的稳定性骑自行车的稳定性循环酸酸是酸的一种.电解质添加剂是一种电解质添加剂.阻燃剂是一种阻燃剂.离子电池的离子电池是什么固体电解质间相 (SEI) 过程

更多相关视频

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

The Effect of Charging and Discharging Lithium Iron Phosphate-graphite Cells at Different Temperatures on Degradation

The Effect of Charging and Discharging Lithium Iron Phosphate-graphite Cells at Different Temperatures on Degradation

Published on: July 18, 2018

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...