IONZERA
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0.1

Ω·cm²

350

μm thick

3x

vs Zirfon

G-Hexa|Made in India
DESIGN APPROACHVSCeramic Separators

Composite vs Ceramic-Only Separators

Pure ceramic separators offer chemical stability but are brittle and expensive. IONZERA's polymer-ceramic composite combines the best of both materials into a flexible, high-performance membrane.

IONZERA0.09–0.1Ω·cm²Mesh-FreeDesign350–410μm thinZeroAsbestosTiO₂+GONanoAWEReady

Pure Ceramic Separators: Strengths and Limitations

Pure ceramic separators - made from sintered alumina (Al₂O₃), zirconia (ZrO₂), or titania (TiO₂) - have been explored for alkaline electrolysis due to their excellent chemical stability in concentrated KOH and inherent hydrophilicity. Ceramic materials can withstand high temperatures and aggressive alkaline environments indefinitely.

However, pure ceramic separators face critical practical limitations: they are brittle and prone to cracking during stack assembly, handling, and thermal cycling. Manufacturing requires high-temperature sintering (>1000°C), which is energy-intensive and expensive. Achieving the thin profiles (350–500 μm) needed for low area resistance in ceramic is extremely challenging without mechanical failure risk.

IONZERA's Polymer-Ceramic Composite Approach

IONZERA takes a fundamentally different approach by embedding ceramic nanofillers (TiO₂ + GO) within a flexible polymer matrix (PSU). This composite design captures the functional benefits of ceramics while eliminating their mechanical limitations:

Flexibility - PSU matrix provides sufficient elongation for stack assembly, compression, and thermal cycling without cracking
Low-temperature processing - manufactured via polymer solution casting, not high-temperature sintering - lower energy cost, simpler equipment
Thin-film capability -350–410 μm thickness is achievable with uniform quality and no mechanical failure risk
Custom sizing - composite membranes can be cut to any cell geometry without risk of edge chipping or fracture
Nanoscale ceramic distribution - TiO₂ nanoparticles and GO nanosheets are distributed uniformly throughout the polymer matrix for consistent properties

Nanocomposite Structure

PSU-TiO₂-GO
OH⁻OH⁻OH⁻PSU MatrixTiO₂GO SheetsPores350-410 μm

Performance Comparison

While pure ceramic separators can achieve low area resistance in laboratory settings, their practical performance in industrial electrolysers is limited by thickness constraints, sealing challenges, and fragility:

Area resistance: IONZERA 0.09–0.1 Ω·cm² at 350–410 μm - pure ceramics require >500 μm for mechanical integrity, increasing resistance
Gas barrier: IONZERA <0.5% H₂ crossover - ceramic separators can achieve similar levels but with higher thickness penalty
Mechanical handling: IONZERA can be cut, rolled, and compressed - ceramic separators require rigid mounting and specialized gaskets
Cost: polymer-ceramic composite manufacturing is significantly less expensive than high-temperature ceramic sintering

Area Resistance

3x LOWER
Area Specific Resistance ComparisonIONZERA0.09-0.1 Ω·cm²Zirfon0.30 Ω·cm²00.10.20.3 Ω·cm²~3x Lower

Thickness

20% THINNER
Membrane Thickness ComparisonIONZERA350-410 μmZirfon500 μm500 μm scale20-30%thinnerThinner membrane = More compact stacks= Higher power density

The Best of Both Worlds

IONZERA's composite design represents the optimal convergence of ceramic functionality and polymer practicality. By using TiO₂ and GO at the nanoscale within a PSU matrix, IONZERA achieves the hydrophilicity, chemical stability, and ion transport enhancement of ceramics while delivering the flexibility, thin-film capability, and manufacturability of polymers.

Flexible & Handleable

PSU matrix provides flexibility for cutting, compression, and stack assembly - no brittle fracture risk

Low-Cost Manufacturing

Polymer solution casting at ambient conditions vs energy-intensive >1000°C ceramic sintering

Thinner Profile

350–410 μm with full mechanical integrity - pure ceramics need >500 μm to avoid cracking

EXPLORE MORE

ComparisonsIONZERA vs Zirfon (Full Comparison)vsIONZERA vs ZrO₂-Based SeparatorsvsWhy Switch from PPS Mesh to IONZERAvsIONZERA vs PTFE DiaphragmsvsIONZERA: Asbestos-Free Separator Alternative
SpecsPSU-TiO2-GOPSU-TiO₂-GO Nanocomposite MembraneGO EnhancedGraphene Oxide Enhanced MembraneTiO2 ActiveTiO₂ Photocatalytic Anti-Degradation Membrane0.09-0.1 Ω·cm²Low Area Resistance Separator for 30wt% KOH
ApplicationsEnergyIONZERA for Alkaline Water Electrolysis (AWE)ResearchIONZERA for Electrolyser Stack OEM IntegrationIndustryIONZERA for Semiconductor Fab Gas Supply
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