相关实验视频

Updated: Sep 10, 2025

Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System

Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System

Published on: January 7, 2022

液相合成单分散V⁵⁺法拉迪电极向高性能超级电容器应用

Sutharthani Kannan¹, Chia-Hung Huang^2,3, Pradeepa Stephen Sengolammal¹

¹#120, Energy Materials Lab, Department of Physics, Science Block, Alagappa University, Karaikudi 630003, Tamil Nadu, India.

Nanomaterials (Basel, Switzerland)

|August 27, 2025

概括

使用四方糖醇合成的氧化物 (V2O5) 纳米材料对超级电容具有前景. 乙烯基醇衍生的V2O5电极具有卓越的特定容量和能量密度,用于先进的能量存储.

科学领域:

材料科学
电化学
纳米技术

背景情况:

分层氧化物 (V2O5) 是超级电容器的关键电池类型电极材料.
通过非水性溶剂合成的V2O5纳米材料提供了增强能量储存的潜力.
了解合成溶剂的作用对于优化V2O5性能至关重要.

研究的目的:

通过使用四糖醇,研究V2O5的液相合成.
研究乙烯,二乙烯,三乙烯和四乙烯甘醇在V2O5电荷储存中的明确作用.
评估来自不同糖醇的V2O5电极在超级电容器应用中的电化学性能.

主要方法:

使用乙烯,二乙烯,三乙烯和四乙烯糖醇的V2O5纳米材料的液相合成.
描述V2O5的形态和结晶性
使用三电极电池设置和特拉萨蒂分析进行电化学分析.
水性不对称超级电容器 (DV/AC) 的制造和测试.

主要成果:

在所有测试的糖醇中,V2O5被证实是介质物质.
糖醇影响了V2O5的晶体,棒状形态和单分散性.
由乙烯基醇 (DV) 制成的V2O5电极在1A/g时显示出高于460.2C/g的特异容量.
特拉萨蒂分析显示DV的总容量高 (961. 53 C/ g),主要是扩散控制的贡献.
在1199.97W/kg时,DV//AC装置达到65.72Wh/kg的最大能量密度.

结论:

四方糖醇有效合成适用于超级电容器的V2O5纳米材料.
乙烯基醇可以产生具有特殊电化学性能的V2O5电极.
糖醇衍生的V2O5电极是满足电化学储能需求的有希望的候选者.

关键词:

V2O5 其他葡萄糖液相合成超级电容器

更多相关视频

Synthesizing a Gel Polymer Electrolyte for Supercapacitors, Assembling a Supercapacitor Using a Coin Cell, and Measuring Gel Electrolyte Performance

Synthesizing a Gel Polymer Electrolyte for Supercapacitors, Assembling a Supercapacitor Using a Coin Cell, and Measuring Gel Electrolyte Performance

Published on: November 30, 2022

Fabrication of VB2/Air Cells for Electrochemical Testing

Fabrication of VB2/Air Cells for Electrochemical Testing

Published on: August 5, 2013

相关概念视频

Capacitor With A Dielectric

Capacitor With A Dielectric

Parallel plate capacitors consist of two conducting plates separated by a certain distance. However, it is mechanically difficult to hold the large plates parallel to each other without actual contact. Hence, a dielectric layer is commonly placed between the plates, which provides an easy solution for holding the plates together with a small gap and increases the capacitance of the capacitor.
Dielectrics are non-conducting materials with no free or loosely bound electrons. When a dielectric is...

Dielectric Polarization in a Capacitor

Dielectric Polarization in a Capacitor

The presence of a dielectric medium in a capacitor not only changes the voltage and capacitance but also affects the electric field. In general, dielectrics can be of two types: polar and nonpolar. In a polar dielectric, the positive and negative charges in the molecules are separated by a distance and hence have a permanent dipole moment. In contrast, no such charge separation exists in a nonpolar dielectric, however the nonpolar molecules get polarized in the presence of an external electric...