相关实验视频

Updated: Jun 29, 2026

Fabrication of VB2/Air Cells for Electrochemical Testing

Fabrication of VB2/Air Cells for Electrochemical Testing

Published on: August 5, 2013

规范高容量和长寿命水性铁离子电池中酸的层间距

Chang Li¹, Yushuang Xu¹, Wenjun Deng¹

¹School of Advanced Materials, Peking University Shenzhen Graduate School, Shenzhen, 518055, China.

Small (Weinheim an der Bergstrasse, Germany)

|September 29, 2023

概括

氨酸 (PA) 插入的VOPO4材料促进水性铁离子电池中的铁离子扩散. 这种正极材料设计提供了高容量和优良的循环稳定性,为有前途的储能解决方案提供了希望.

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:

水性离子电池主导着研究,但水性铁离子电池的成本更低,稳定性更高.
铁离子电池中缓慢的Fe2+ (de) 干扰限制了容量和电化学稳定性.
开发高性能阴极材料对于推进水性铁离子电池至关重要.

研究的目的:

为了合成氨酸 (PA) 间隔的VOPO4与扩大层间间距.
研究这些材料作为水性铁离子电池中的阴极材料的性能.
为了应对Fe2+扩散缓慢的挑战,以提高电池性能.

主要方法:

合成氨酸 (PA) 间接的VOPO4材料.
在水性铁离子电池中合成材料的电化学表征.
分析Fe2+扩散动力学和层间间距的影响.

主要成果:

氨酸 (PA) 间接的 VOPO4 阴极表现出扩大的层间间距.
在0.2 A g-1下实现了170 mAh g-1的高特异性容量.
经过2200个循环后,表现出优异的速度性能和长期周期稳定性,容量保留率为96.2%.

结论:

胺间隔有效地扩大了层间间距,促进了快速的Fe2+扩散.
开发的正极材料显示了高性能水性铁离子电池的巨大潜力.
这项研究为设计用于水性铁离子能量存储的先进阴极材料提供了新的策略.

关键词:

在Fe2+中介化过程中,Fe2+水性铁离子电池水性铁离子电池卓越的循环性能卓越的循环性能层间间距离是层间距离之间的距离.酸和酸的使用方法

更多相关视频

$In Situ Neutron Powder Diffraction Using Custom-made Lithium-ion Batteries$ 11:25

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

Published on: November 10, 2014

A Protocol for Electrochemical Evaluations and State of Charge Diagnostics of a Symmetric Organic Redox Flow Battery

A Protocol for Electrochemical Evaluations and State of Charge Diagnostics of a Symmetric Organic Redox Flow Battery

Published on: February 13, 2017

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...