Abstract
The Nafion117/SiO2 composite membrane was prepared by sol-gel method.The results showed that,during composite membrane preparation process,the ratio of MeOH and TEOS did not affect the penetration rate of VO2+ basically,however,the lowest permeability of 427×10-9cm2/s in the membrane was achieved while hydrolysis time was 10 min and natural drying for 24 h after hydrolysis,which reduced by 52 times than that in Nafion117 membrane.The SEM tests proved that SiO2 grains grew bigger in the composite membrane during the natural drying,and most of the holes in Nafion117 were filled.Single cell test showed the battery power efficiency was improved by 2.7 %.
Keywords
all vanadium redox flow battery, permeability, silicon dioxide, power efficiency
Publication Date
2010-11-28
Online Available Date
2010-11-28
Revised Date
2010-11-28
Received Date
2010-11-28
Recommended Citation
Dong-dong LIU, Mao-cai LIN, Tao GUAN, Qing-chun YU.
Research on Nafion/SiO_2 Composite Membrane in All Vanadium Redox Flow Battery[J]. Journal of Electrochemistry,
2010
,
16(4): 455-459.
DOI: 10.61558/2993-074X.2071
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol16/iss4/17
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