相关实验视频

Updated: Jul 13, 2025

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications

Published on: August 12, 2013

用准固态聚合物电解质提高氧电池的性能

SiXin Jia¹, FengQuan Liu², JinXin Xue¹

¹Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing 100875, China.

|October 16, 2023

概括

准固体电解质膜通过稳定接口并实现317个循环来提高氧电池的性能. 这些膜增强金属阳极沉积和阴极稳定性.

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
储能储能储能储能储能储能

背景情况:

氧电池 (LOB) 具有高的理论能量密度,但由于电解质分解和不稳定的接口,其周期寿命较短.
开发稳定的电解质对于推进LOB技术至关重要.

研究的目的:

创建准固体电解质膜 (QSE),以提高氧电池的性能.
调查QSE在稳定阴极和阳极接口中的作用.
为了评估LOB的电化学稳定性和循环寿命,使用QSEs.

主要方法:

通过在玻璃纤维中凝固不和聚和液态电解质前体来合成QSE.
通过调整四乙烯糖醇二甲基乙醇比率来优化QSE特性.
制造和测试准固体氧袋细胞与现场形成的QSE.

主要成果:

实现了具有平衡离子导电性,灵活性和电化学稳定的QSEs.
已证明,QSE抑制了阴极上的电解质分解和氧气交叉到阳极的过程.
将LOB循环寿命延长到317个循环,改善了Li+流量均化和均的Li沉积.
在机械应力下 (折叠,切割) 展示了稳定的囊细胞操作.

结论:

在LOB中,QSE在阴极和阳极稳定中起着至关重要的作用.
现场培养策略进一步提高了QSE绩效.
开发的QSE为实用,持久的氧电池提供了有希望的途径.

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

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

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...