相关实验视频

Updated: Jun 1, 2025

Zinc-Sponge Battery Electrodes that Suppress Dendrites

Zinc-Sponge Battery Electrodes that Suppress Dendrites

Published on: September 29, 2020

由Sn/NC诱导的无石Zn阳极,用于高效的Zn离子电池

Mingyue Wang^1,2, Shuoshuo Ban², Nanzhe Li²

¹School of Materials Science and Engineering, Anhui University of Technology, Maanshan 243002, China. wenhaiwang@ahut.edu.cn.

Chemical communications (Cambridge, England)

|January 20, 2025

概括

在添加碳 (Sn/NC) 上的纳米颗粒可以改善离子电池中的阳极. 这种接口层增强了和剥离,以提高电池性能.

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:

离子电池 (ZIB) 由于的丰富性和安全性,对储能充满希望.
然而,不受控制的树状岩的生长和不均的涂层/脱落阻碍了ZIB的性能和寿命.
开发有效的接口层对于稳定阳极至关重要.

研究的目的:

用于构建纳米颗粒,以添加碳 (Sn/NC) 作为阳极的接口层.
研究Sn/NC在调节涂/脱落过程中的作用.
为了评估ZIB中Sn/NC改性阳极的电化学性能.

主要方法:

采用g-C3N4辅助的策略,合成了在N-化碳 (Sn/NC) 上支持的Sn纳米粒子.
在阳极上用Sn/NC作为接口层.
电化学测试,包括循环电量计,静电循环和电化学阻抗光谱,在对称和全细胞中进行.

主要成果:

Sn/NC接口层有效调节了沉积和剥离行为.
与裸Zn阳极相比,Sn/NC@Zn阳极表现出显著改善的循环稳定性和库伦比效率.
带有Sn/NC@Zn阳极的对称和全电池都显示出增强的速率能力和长期循环性能.

结论:

采用g-C3N4辅助的Sn/NC构造是一种可行的策略,可以为阳极创建先进的接口层.
Sn/NC有效地抑制了树突的形成,并促进了均的涂/脱落,从而实现了卓越的ZIB性能.
这项工作为开发高性能和耐用的离子电池提供了有前途的方法.

更多相关视频

Fabrication of VB2/Air Cells for Electrochemical Testing

Fabrication of VB2/Air Cells for Electrochemical Testing

Published on: August 5, 2013

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

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

Published on: November 10, 2014

相关概念视频

Standard Electrode Potentials

Standard Electrode Potentials

On comparing the reactivity of silver and lead, it is observed that the two ionic species, Ag+ (aq) and Pb2+ (aq), show a difference in their redox reactivity towards copper: the silver ion undergoes spontaneous reduction, while the lead ion does not. This relative redox activity can be easily quantified in electrochemical cells by a property called cell potential. This property is commonly known as cell voltage in electrochemistry, and it is a measure of the energy which accompanies the charge...

P-N junction

P-N junction

A p-n junction is formed when p-type and n-type semiconductor materials are joined together. At the interface of the p-n junction, holes from the p-side and electrons from the n-side begin to diffuse into the opposite sides due to the concentration gradient. This diffusion of carriers leads to a region around the junction where there are no free charge carriers, known as the depletion region. The charge density within the depletion region for the n-side and p-side can be described by the...

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...

Voltaic/Galvanic Cells

Voltaic/Galvanic Cells

Spontaneous Chemical Reactions
Spontaneous redox reactions occur abundantly in nature. The chemical reaction occurring in a disposable AA battery powering our remote controls is one such example of a spontaneous redox reaction. Another example is the immersion of coiled copper wire into an aqueous silver nitrate solution. The reaction shows a gradual, visually impressive color change from colorless to bright blue and the formation of a grey precipitate on the copper wire. In this experiment,...