TECHNICAL SPECIFICATION
ELECTRICALUltra-Low Ionic Resistance in 30wt% KOH 0.09–0.1 Ω·cm²
The most critical specification for AWE separator membranes. IONZERA delivers approximately 3x lower area resistance than Zirfon PERL UTP 500, directly reducing cell voltage and electricity costs per kilogram of hydrogen produced.
ELECTRICAL
IONZERAIONZERA
Zirfon
What Is Area Resistance and Why Does It Matter?
Area resistance, measured in Ω·cm², quantifies how much a separator membrane impedes the flow of hydroxide ions (OH⁻) between electrodes in an alkaline electrolyser. It is the single most important specification because it directly determines the voltage drop across the membrane, and therefore the electricity consumed per kilogram of hydrogen.
IONZERA achieves an area resistance of 0.09–0.1 Ω·cm² when measured in 30 wt% KOH electrolyte at room temperature. This is approximately 3x lower than the 0.30 Ω·cm² reported for Zirfon PERL UTP 500 under the same conditions.
How IONZERA Achieves 3x Lower Resistance
Three synergistic design features work together to achieve this breakthrough resistance value:
Impact on Hydrogen Production Economics
In a typical alkaline electrolyser operating at 0.4 A/cm², the voltage drop across the membrane is approximately 0.04 V with IONZERA versus 0.12 V with Zirfon. This 0.08 V saving per cell compounds dramatically across a 100+ cell stack operating 8,000 hours per year over a 20-year plant lifetime. The cumulative electricity savings often exceed the total membrane cost several times over, making area resistance the most impactful specification for levelized cost of hydrogen (LCOH).
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