石墨烯基全钒液流电池电极的制备及性能测试
本论文主要研究是石墨毡电极在硫酸的溶液里的电化学氧化，并通过循环伏安法和电池充放电测试进行检测，比较处理后的与处理前的石墨毡电极的电化学性能和亲水性。研究表明，经电化学氧化处理后的石墨毡电极表面的含氧官能团明显增多，电化学活性增强。
毕业论文关键词：全钒液流电池 电极材料 石墨毡 电化学氧化
Graphene-based electrode preparation and performance testing for VRB
Abstract:As a new large-scale energy storage equipment, a vanadium redox flow battery has great prospects for the development of environment-friendly batteries in the world ，it has many advantages ，such as a fast charge and discharge, a large-scale energy storage, and the depth of discharge. The electrode is used as one of the most critical components of the vanadium battery, its performance directly determines the quality of the vanadium battery. Vanadium battery electrode which has excellent performances and can be applied to practice has been a research hotspot.
Ideal electrode material must have good corrosion resistance, good mechanical properties, good electrical conductivity to excellent electrochemical activity and low cost. In the electrode materials used at home and abroad, the graphite felt electrodes class has become the first choice for the manufacturers who produce and research vanadium battery electrode. But Graphite felt electrode which is untreated has poor performance, and poor reversibility of the electrode reaction. Oxidation treatment and added absorbing oxygen-containing functional groups can be very good to improve graphite felt electrode’s water absorption and electrochemical activity.
The main research of this paper is the electrochemical oxidation of graphite felt electrode in sulfuric acid solution, and we have compared the treated graphite felt electrodein with the untreated in the aspects of the electrochemical properties and hydrophilicity by cyclic voltammetry and charge discharge test. Studies have shown that Oxygen containing functional groups increased significantly and electrochemical activity will enhance in the surface of the graphite felt electrode after electrochemical oxidation process.
Key words: vanadium redox flow battery electrode material graphite felt electrochemical oxidation
目录
石墨烯基全钒液流电池电极的制备及性能测试 I
Graphene-based electrode preparation and performance testing for VRB II
第一章：绪论 1
1.1前言 1
1.2氧化还原液流电池 1
1.3全钒氧化还原液流电池 2
1.4全钒液流电池的工作原理及其结构 3
1.4.1全钒液流电池的工作原理 3
1.4.2全钒液流电池的结构 4
1.5全钒液流电池的特点 5
1.6全钒液流电池的关键性材料 6
1.6.1离子交换膜 6
1.6.2全钒液流电池的电解液 6
1.6.3电极材料 7
1.7钒电池电极材料的发展现状及石墨毡电极的介绍 7
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