Flow batteries have been identified as the optimal choice for grid-scale energy storage but have never scaled rapidly due to the costly price of the membrane.
Membrion has developed high-performance, low-cost membranes that improve the performance of flow batteries. The membranes are made from environmentally friendly silica gel that act like polymers - bendable, flexible, and compressible.
state of development
Membrion has filed provisional patents for a simple process to make membranes using silica gel.