相关实验视频

Updated: Jun 6, 2025

Zinc-Sponge Battery Electrodes that Suppress Dendrites

Zinc-Sponge Battery Electrodes that Suppress Dendrites

Published on: September 29, 2020

2+流量调节器调节接口化学向高度可逆的阳极调节

Chi Zhang¹, Canglong Li², Dongping Chen²

¹North Alabama International College of Engineering and Technology, Guizhou University, Guiyang 550025, PR China.

Journal of colloid and interface science

|December 1, 2024

概括

一种新的添加剂,2-amino-5-guanidino-pentanoic acid (AGPA),充当离子流调节器 (ZFR),以防止在水性离子电池 (AZIB) 中形成树突. 这大大提高了电池的寿命和商业应用的稳定性.

科学领域:

电化学电化学电化学
材料科学材料科学材料科学
储能储能储能储能储能储能

背景情况:

水性离子电池 (AZIB) 在循环寿命方面面临限制,原因是库伦比效率低,阳极上形成树脂.
这些问题阻碍了AZIB技术的商业可行性和广泛采用.

研究的目的:

为AZIBs引入一种新型添加剂,即2-amino-5-guanidino-pentanoic acid (AGPA),作为离子流量调节器 (ZFR).
通过控制界面和溶解化学来提高阳极的可逆性和耐用性.

主要方法:

将AGPA作为多功能添加剂加入到AZIB电解质中.
对AGPA在表面层形成和Zn2+复合过程中的性和核性特征的研究.
用AGPA添加剂对Zn//Zn对称细胞和全AZIB进行电化学测试.

主要成果:

在Zn阳极上,AGPA形成了一个多功能分子吸附层,促进了均的,没有树突的沉积.
该添加剂有效地使Zn2+流同质化,并抑制界面侧面反应.
Zn//Zn对称电池的循环寿命为5500小时,充满电池的循环寿命为5A/g,达到6000个循环.

结论:

开发的ZFR (AGPA) 显著提高了AZIB的自行车性能和稳定性.
AGPA的协同功能组有效地管理Zn阳极接口,为AZIBs的商业化铺平了道路.

关键词:

水性Zn离子电池的使用情况电解质添加剂电解质添加剂接口的化学特性 Zn金属阳极是一种金属阳极.Zn(2+) 流量调节器的流量调节器

更多相关视频

Fabrication of Schottky Diodes on Zn-polar BeMgZnO/ZnO Heterostructure Grown by Plasma-assisted Molecular Beam Epitaxy

Fabrication of Schottky Diodes on Zn-polar BeMgZnO/ZnO Heterostructure Grown by Plasma-assisted Molecular Beam Epitaxy

Published on: October 23, 2018

Well-aligned Vertically Oriented ZnO Nanorod Arrays and their Application in Inverted Small Molecule Solar Cells

Well-aligned Vertically Oriented ZnO Nanorod Arrays and their Application in Inverted Small Molecule Solar Cells

Published on: April 25, 2018

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...