摘要
研究了多种商品化多孔碳电极的石墨化程度和电导率的活性差异,探讨了其对钒电池体系充放电性能的决定性作用。通过研究发现,多孔碳电极的石墨化程度影响氧化还原反应的活化极化水平,电导率的高低影响氧化还原反应的欧姆极化水平。因此,为了获得良好的倍率性能,钒电池体系必须选择石墨化程度高和导电性能良好的多孔碳电极。
The activity differences in graphitization degree and conductivity of a variety of commercial porous carbon electrodes are studied, and the decisive effects of them on the charge and discharge performance of the vanadium battery system are discussed. Through the study, it is found that the graphitization degree of the porous carbon electrode affects the activation polarization level of the redox reaction, and the electrical conductivity level affects the ohmic polarization level of the redox reaction. Therefore, in order to obtain good rate performance, the porous carbon electrode with high graphitization degree and good conductivity must be selected for vanadium battery system.
作者
张琦
詹林献
ZHANG Qi;ZHAN Linxian(CEPREI-EAST,Suzhou 215011,China;CEPREI,Guangzhou510610,China;Guangzhou Intelligent Equipment Research Institute Co.,Ltd.,Guangzhou 510000,China)
出处
《电子产品可靠性与环境试验》
2018年第3期1-4,共4页
Electronic Product Reliability and Environmental Testing
关键词
多孔碳电极
石墨化度
电导率
电化学性能
钒电池
porous carbon electrode
graphitization degree
electrical conductivity
electrochemical performance
vanadium battery
