相关实验视频

Updated: Jul 25, 2025

Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature

Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature

Published on: December 20, 2016

具有离子混合电容器的高温电阻的宽潜能窗双金属水合欧特基电解质

Meichen Wen¹, Chao Yang¹, Qifan Liu²

¹Guangxi Key Laboratory of Optical and Electronic Materials and Devices, College of Materials Science and Engineering, Guilin University of Technology, Guilin, 541004, P. R. China.

Small (Weinheim an der Bergstrasse, Germany)

|June 30, 2023

概括

一种新型的双金属化电解质 (ZnK-HEE) 改善了水性离子混合电容器 (ZHC). 这种先进的电解质可以实现高温操作,并提高ZHC设备的能量存储性能.

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:

水性离子混合电容器 (ZHC) 是一个有前途的储能装置.
传统电解质中的自由水分子会引起寄生反应,限制ZHC的性能.
含水电解质 (HEEs) 为高温和宽潜能窗口应用提供了潜在的潜力.

研究的目的:

开发一种新型的双金属水合欧电解质 (ZnK-HEE),以提高ZHC的性能.
研究ZnK-HEE的结构和电化学特性.
为了评估ZHC在高温下使用ZnK-HEE的性能.

主要方法:

合成和ZnK-HEE的表征.
分子动力学 (MD) 和密度函数理论 (DFT) 用于溶解分析.
对Zn//活性炭ZHC的电化学测试,包括循环电压测量和静电电荷放电.
现场X射线衍射 (XRD) 来研究反应机制.

主要成果:

ZnK-HEE 呈现出稳定的双金属溶解,具有较低的溶解能量.
在ZnK-HEE中的Zn//活性炭ZHC实现了2.1V的高工作电压.
记录了特殊的性能指标:326.9 mAh g-1容量,2099.7 W kg-1功率密度和343.2 Wh kg-1能量密度在100°C.
现场XRD证实了充放电周期中的反应机制.

结论:

开发的ZnK-HEE是高性能水性ZHC的有希望的电解质.
电解质表现出优异的高温耐受性和广泛的运行潜力窗口.
ZnK-HEE促进了ZHC的增强容量和电化学动力学,为先进的储能解决方案铺平了道路.

关键词:

双金属水合欧特性电解质.密度函数理论计算分子动力学模拟.耐热性耐热性耐热性耐热性离子混合电容离子混合电容

更多相关视频

Zinc-Sponge Battery Electrodes that Suppress Dendrites

Zinc-Sponge Battery Electrodes that Suppress Dendrites

Published on: September 29, 2020

An Available Technique for Preparation of New Cast MnCuNiFeZnAl Alloy with Superior Damping Capacity and High Service Temperature

An Available Technique for Preparation of New Cast MnCuNiFeZnAl Alloy with Superior Damping Capacity and High Service Temperature

Published on: September 23, 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...

Potentiometry: Membrane Electrodes

Potentiometry: Membrane Electrodes

Membrane electrodes, also known as p-ion electrodes, use membranes that selectively interact with free analyte ions, generating a potential difference across the membrane. The resulting membrane potential, known as the asymmetry potential, is not zero even when analyte concentrations on both sides of the membrane are equal. The membrane's response is typically not selective to a single analyte but proportional to the concentration of all ions in the sample solution capable of interacting at...