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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...

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相关实验视频

Updated: Jul 5, 2025

$In Situ Neutron Powder Diffraction Using Custom-made Lithium-ion Batteries$

In Situ Neutron Powder Diffraction Using Custom-made Lithium-ion Batteries

Published on: November 10, 2014

持续释放驱动的接口工程使金属电池能够快速充电.

Yu You¹, Haofan Duan¹, Hongming Tan¹

¹Hunan Provincial Key laboratory of Thin Film Materials and Devices, School of Material Sciences and Engineering, Xiangtan University, Xiangtan, 411105, China.

Small (Weinheim an der Bergstrasse, Germany)

|January 22, 2024

概括

一个新的复合层 (PML) 增强酸的酸.

关键词:

电化学性能电化学性能金属电池是金属电池的一种.含有的物种.基于聚合物的保护层.均的沉积的沉积.

更多相关视频

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

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

相关实验视频

Last Updated: Jul 5, 2025

$In Situ Neutron Powder Diffraction Using Custom-made Lithium-ion Batteries$

In Situ Neutron Powder Diffraction Using Custom-made Lithium-ion Batteries

Published on: November 10, 2014

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

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

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:

酸 (LiNO) 是一种有前途的电解质添加剂,可以通过形成保护性LiN和LiNxOy物种来稳定金属电池.
在碳酸盐电解质中的LiNO₃的有限溶解性阻碍了其在高压金属电池中的应用.

研究的目的:

制定一项战略,克服LiNO₃在高压金属电池的碳酸盐电解质中的可溶性限制.
为了提高接口稳定性和沉积行为,在金属阳极上使用复合材料层.

主要方法:

在金属表面上设计了一个由LiNO₃和PMMA组成的人工复合材料层 (PML).
研究了PML层作为逐渐释放LiNO3的储的作用.
分析了PMMA矩阵对离子导电性和离子迁移的贡献.

主要成果:

在超高电流密度 (20 mA cm^{-2) 和大面积容量 (10 mAh cm^{-2) 中实现了稳定且无树的涂/剥离.}}
在一个Li水LiFePO₄全细胞中,经过2000多个周期的稳定循环,容量保留94.8%.
PML层有效调节了沉积,并增强了接口稳定性.

结论:

创建PML复合层的简单策略成功解决了LiNO₃在碳酸盐电解质中的可溶性问题.
这种方法使LiNO₃可用于稳定和高性能金属电池的实际应用.