Diffusion Coefficients of VO 2+ in Ion Exchange Membranes for All Vanadium Redox Flow Battery

摘要：

The diffusion coefficients of VO 2+ across four kinds of ion exchange membranes were measured using Nernst-Plank equation. The results indicated that the permeation of VO2+ cross the membrane was dominated by the dissolution of VO 2+ in the membrane phase. The highest value of diffusion coefficient was 11.7 ×10-12m2/s in CEDI membrane, while the lowest was 8.7 ×10-14m 2 /s in the AEDI membrane. The energy loss decreased with the SOC of battery increasing during charge while increased with the decreasing SOC during discharge.

关键词： All vanadium redox flow battery (VRB) Membrane VO2+ Diffusion coefficient

作者: Jin-qing Chen Bao-guo Wang Ji-chu Yang

作者单位: Department of Chemical Engineering, Tsinghua University, Bejing 100084 P.R.China

会议类型: 国际会议

会议名称: The 5th International Conference on Separation Science and Technology(第五届国际分离科学与技术会议)

会议地点: 北京

会议语种:英文

在线出版日期: 2007-10-14（万方平台首次上网日期，不代表论文的发表时间）