High conductivity and high durability AEM
made in the Rockies
TuffBrane™ delivers the benefits of an AEM with performance and durability rivaling a PEM.
TuffBrane™ is a patented Anion Exchange Membrane with excellent performance and durability.
Non-Fluorinated, 100% hydrocarbon polymer chemistry
High ionic conductivity - 100-180 mS/cm (σOH-)
Long durability in harsh alkaline environments
Low swelling ratio - <10%
High mechanical strength
High chemical stability - 0-14 pH
These impressive qualities are achieved through a polyethylene backbone chemistry, and when hydrated, the membrane gets even stronger.
The result is a low-cost, high performance membrane that will reduce capital and operational expenses for many applications.
Contact us to get on the list for a sample.
Completed May, 2021 in customer device
Membrane: 125µm thickness
Electrodes: commercial ionomer
Catalyst: PGM (Cathode); PGM-Free (Anode)
DI water: De-ionized Water
75hr Durability Test:
KOH 1wt%, 750mA/cm2, 0.32mV/hr degradation
75 hour test:
Meet the Team
Our team leverages decades of experience in Energy, Electrochemistry, and Polymer Engineering.