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石墨烯基全釩液流電池電極的制備及性能測試

時間:2019-04-19 20:37來源:畢業論文
研究是石墨氈電極在硫酸的溶液里的電化學氧化,并通過循環伏安法和電池充放電測試進行檢測,比較處理后的與處理前的石墨氈電極的電化學性能和親水性。研究表明,經電化學氧化

摘要:全釩液流電池作為一種新型大型蓄能裝備,是當今世界具有很大發展前景的綠色環保型電池,具有可快速沖放電,大規模蓄能,和深度放電等方面的優點。而電極作為釩電池最關鍵的部件之一,其性能的好壞直接決定釩電池的質量。生產性能優良并可以走向實際應用的釩電池電極一直是國內外研究的一個熱點。石墨氈類電極一直成為廠家制作釩電池電極和研究的首選。但沒有經過處理的石墨氈電極的親水性能差,電極反應可逆性差。而通過對石墨氈進行改性處理改善其吸水性能和電化學活性。34651
本論文主要研究是石墨氈電極在硫酸的溶液里的電化學氧化,并通過循環伏安法和電池充放電測試進行檢測,比較處理后的與處理前的石墨氈電極的電化學性能和親水性。研究表明,經電化學氧化處理后的石墨氈電極表面的含氧官能團明顯增多,電化學活性增強。
畢業論文關鍵詞:全釩液流電池  電極材料  石墨氈  電化學氧化
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. 源`自*六)維[論*文'網www.mmeqir.tw
     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
目錄
石墨烯基全釩液流電池電極的制備及性能測試    I
Graphene-based electrode preparation and performance testing for VRB    II
第一章:緒論    1
1.1前言    1
1.2氧化還原液流電池    1
1.3全釩氧化還原液流電池    2
1.4全釩液流電池的工作原理及其結構    3
1.4.1全釩液流電池的工作原理    3
1.4.2全釩液流電池的結構    4
1.5全釩液流電池的特點    5
1.6全釩液流電池的關鍵性材料    6 源`自*六)維[論*文'網www.mmeqir.tw
1.6.1離子交換膜    6
1.6.2全釩液流電池的電解液    6
1.6.3電極材料    7
1.7釩電池電極材料的發展現狀及石墨氈電極的介紹    7 石墨烯基全釩液流電池電極的制備及性能測試:http://www.mmeqir.tw/wuli/20190419/32240.html
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