相关实验视频

Updated: May 17, 2025

Non-aqueous Electrode Processing and Construction of Lithium-ion Coin Cells

Non-aqueous Electrode Processing and Construction of Lithium-ion Coin Cells

Published on: February 1, 2016

通过无形工程构建匹配接口,用于在半固态电池中增强离子传输

Jiapei Gu^1,2, Chenxu Dong¹, Yuxin Zhu¹

¹State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, China.

Angewandte Chemie (International ed. in English)

|May 10, 2025

概括

研究人员使用金属有机框架和阿拉米德纤维开发了一种新的准固态- (Li-I2) 电池电解质. 这种设计增强了离子 (Li+) 迁移和电池寿命,提高了储能性能.

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
储能储能储能储能储能储能

背景情况:

准固态 (Li-I2) 电池具有较高的理论容量和安全性,但由于复合电解质的接口粘合不良,阻碍了Li+迁移.
晶体填充剂和聚合物骨架之间不充分的结合导致高接口能量和缓慢的Li + 动态,限制了电池的性能.

研究的目的:

为改进的Li-I2电池设计一个连续接口固体电解质.
通过原子结构重新排列和无形工程来增强Li+迁移和聚化物限制.
研究高性能复合体固体电解质的合接口的机制.

主要方法:

金属有机框架 (MOF) 的原子结构重新排列,以创建与阿拉米德纤维的接口合.
实验测试和理论计算来分析Li+迁移和聚化限制.
在Li-I2电池中的新型复合体固体电解质的制造和电化学性能评估.

主要成果:

设计的电解质证明了增强的Li+迁移和有效的聚化封闭.
-I2电池在5°C下达到170.7mAhg-1的高容量,在450个循环后保持97.8%的电容.
观察到特殊的长期循环稳定性,在20°C下进行了3000个循环,容量保持率为94.1%.

结论:

MOF-阿拉米德纤维接口的无形工程显著改善了Li+运输和电池性能.
该研究揭示了合接口在增强Li+迁移和聚化集成中的机制.
这项工作为设计高性能Li-I2电池的先进复合体固体电解质提供了途径.

关键词:

无形无形接口接口连续接口准固态电解质的持续接口.离子电池的离子电池.金属有机框架的框架.

更多相关视频

Screening of Coatings for an All-Solid-State Battery Using In Situ Transmission Electron Microscopy

Screening of Coatings for an All-Solid-State Battery Using In Situ Transmission Electron Microscopy

Published on: January 20, 2023

Focused Ion Beam Fabrication of LiPON-based Solid-state Lithium-ion Nanobatteries for In Situ Testing

Focused Ion Beam Fabrication of LiPON-based Solid-state Lithium-ion Nanobatteries for In Situ Testing

Published on: March 7, 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...

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.