Hello,
I am currently working on a redox flow battery, well sorts of, the term redox may not be completely correct. The battery uses one side highly acidic (ph 0) and one highly alkaline (ph: 12,1-12,2) and I have two membrane types, but only one try. A quarternized polystyrol membrane will most likely be destroyes by the acid in long term. A clay membrane made from clay tiles has previously shown very promising in microbial fuel cell and alkaline fuel cell applications, but I am not sure about the ph stability of clay over long term. Whats your personal opinion, which one should I use
Dear Sir. Concerning your issue about the clay membrane or anion exchange membrane for redox flow battery. The need for large scale energy storage has become a priority to integrate
renewable energy sources into the electricity grid. Redox flow batteries are considered the
best option to store electricity from medium to large scale applications. However, the
current high cost of redox flow batteries impedes the wide spread adoption of this
technology. The membrane is a critical component of redox flow batteries as it determines
the performance as well as the economic viability of the batteries. The membrane acts as a
separator to prevent cross-mixing of the positive and negative electrolytes, while still
allowing the transport of ions to complete the circuit during the passage of current. An
ideal membrane should have high ionic conductivity, low water intake and excellent
chemical and thermal stability as well as good ionic exchange capacity. Developing a low
cost, chemically stable membrane for redox flow cell batteries has been a major focus for
many groups around the world in recent years. This paper reviews the research work on
membranes for redox flow batteries, in particular for the all-vanadium redox flow battery
which has received the most attention. For more details, I think the following below attached file may help you in your issue.
Thanks
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