Long lifespan & durability
Proven by over 12 years of development and testing.
Environment friendly
Completely PFAS (Per- and Polyfluoroalkyl Substances) free chemistry
Czech patent obtained
Protected technology with unique properties.
Industrial-scale production
Roll-to-roll process enables large-scale efficiency.
Customer-specific customization
Membranes tailored to individual requirements.
About TailorMem
TailorMem is a spin off company of IMC Czech Academy of Sciences with a license for ion exchange membranes, manufactured under the brand name TailorMem Hollex, which are used in the electrochemical applications such as production of green hydrogen, fuel cell technology, CO2RR and solid state electrolyte in lithium ion batteries. Chemistry of Hollex membrane is “true” hydrocarbon based (no oxygen or other heteroatom in main chain), PFAS-free and completely without fluorine.
Thanks to more than 16 years of development, and the application of the latest scientific knowledge and optimization, these membranes offer extraordinary durability and long life, which gives them a significant competitive advantage. They can be produced on an industrial scale (width 60–100 cm).
- Anion exchange membranes
- Cation exchange membranes
Our Technology
TailorMem Hollex ADL 911 membranes are specially designed for use in AEM electrolysis for hydrogen production. Hydrogen is considered the fuel of the future, playing a key role in the transition to a low-emission economy.
Low degradation rate and use of non-PGM catalyst makes them ideal for the low CAPEX seasonal energy storage sector.
Our membranes are also customizable (thickness, reinforcement, functional group) to meet customer requirements, even for other electrochemical applications, whereas competitors typically offer only a limited selection of standardized membrane types. This tailored approach ensures optimal performance and higher efficiency in specific applications.
Tailoring the structure Hollex ADL 911 membrane can be adopted for CO2RR, solid state electrolyte in lithium batteries, redox flow batteries and other electrochemical processes like electrodyalisis (ED) and electrodeionization (EDI).
TailorMem Hollex ADL 911
Homogeneous anion exchange membrane
| Specifications | |
|---|---|
|
Type anex |
Hollex ADL 911 NR |
|
Use |
electrolysis, electrodialysis |
|
Ion exchange group |
quaternary ammonium |
|
Reinforcing textile |
no |
|
Thickness dry [mm] |
0.05 – 0.2 |
|
Thickness swelled [mm] |
0.06 – 0.3 |
|
Area specific resistance at 25°C [Ω cm2] |
< 2,5 |
|
Specific chloride conductivity at 25°C – through plane – 1 M KCl [mS cm-1] |
> 30 |
|
Specific hydroxide conductivity at 25°C – in plane saturated gas phase [mS cm-1] |
> 50 |
|
Ion exchange capacity [mmol g-1] |
> 0,94 |
|
pH range |
0 – 10
|
|
Thermal stability in 1M KOH long term (1000 h) [°C] |
40 |
|
Thermal stability in 1M KOH short term (100 h) [°C] |
60 |
TailorMem Hollex CIZ 142 (available from Q4 2026)
Proton exchange membrane / Cation exchange membrane
TailorMem Hollex CIZ 142 membranes (PEM/CEM) – is hydrocarbon based (no oxygen or other heteroatom in main chain) PFAS-free cation exchange membrane (proton conducting membrane) with sulfonic ion exchange group and with extra ordinary chemical stability and high ion conductivity among hydrocarbon based membranes. It is designed for PEM electrolysis and fule cells. It is delivered in sheets 300 mm width (optional 800 mm) and 1500 mm long (optionally longer).
Membrane electrode assembly
TailorMem complements its core polymer electrolyte membrane development with an in-house route to fully integrated membrane electrode assemblies (MEAs), using spark ablation to synthesize and deposit platinum catalyst layers in a single step. In this process, a pulsed high-voltage discharge between two metal electrodes generates a plasma that vaporizes the electrode material, and the resulting nanoparticles are carried by a gas stream directly onto the gas diffusion layer, forming a catalyst layer with no catalyst ink, solvents, or binders involved. The resulting catalyst-coated GDLs are hot-pressed directly onto the membrane to form the finished MEA, without any added ionomer in the catalyst layer. This approach has demonstrated strong single-cell fuel cell performance — exceeding that of commercial platinum-black electrodes at equivalent loading — while enabling very low, well-utilized Pt loadings below 0.1 mg cm⁻². The same architecture is also used in water electrolysis, electrochemical hydrogen compression, and CO2 electrolysis.
Read more
TailorMem’s spark ablation process offers considerable manufacturing flexibility. MEA active areas can be produced up to 100 cm², in shapes that are not limited to standard square or rectangular formats. Platinum loading is also freely tunable, including ultra-low loadings below 0.1 mg cm⁻², which can be deposited with excellent uniformity across the electrode area. In addition, the spark ablation process is not restricted to pure platinum: it can produce platinum alloys with other metals across a wide range of compositions, opening up further possibilities for catalyst design. By combining this streamlined, waste-minimal catalyst deposition process with its tailored membranes, TailorMem offers customers a fully integrated catalyst-coated membrane from a single source.
Further information in our published research in ACS Applied Materials & Interfaces.
Pricing
-
Hollex ADL 911 sheet - 300 x 300 mm €250 / piece
Homogeneous anion exchange membrane, 60 microns dry, chloride form, non-reinforced
-
Hollex ADL 911 sheet - 300 x 1500 mm price on request
Homogeneous anion exchange membrane, 60 microns dry, chloride form, non-reinforced
-
Other size or thickness price on request
60 microns dry, chloride form, non-reinforced
-
High volume order price on request
60 microns dry, chloride form, non-reinforced
Our team
Founder & CEO
+420 774 375 606
CFO & CBDO
+420 724 282 224
Chief Scientific Officer
+420 737 326 649
For Investors
Invest in Europe's self-reliance in critical technologies
TailorMem develops and manufactures next-generation ion-exchange membranes under the Hollex brand — the core component of systems for green hydrogen production, CO₂ capture and conversion, and solid-state electrolytes for lithium batteries. Our chemistry is completely PFAS-free and fluorine-free, built on more than 12 years of development and protected by proprietary know-how.
Our technology at a glance
- Hollex membranes — Ion-exchange membranes for electrochemical applications
- PFAS-free and fluorine-free — Aligned with Europe's regulatory trajectory
- Roll-to-roll manufacturing — Scalability and efficiency for industrial volumes
- Tailored membranes — Adapted to specific customer requirements
- 12+ years of development — Proven, protected technology with demonstrated durability
Blog
Introducing Hollex CIZ 142 PEM & Integrated Spark-Ablated MEAs
Discover TailorMem Hollex CIZ 142, a 100% PFAS-free hydrocarbon PEM, paired with innovative spark-ablated MEAs for high-performance electrochemical applications.
TailorMem at the International Industrial Fair in Brno 2025
TailorMem took part in the International Industrial Fair in Brno 2025, where it introduced its products at the seminar “Hydrogen – the Path of Innovation.” Watch the full presentation recording.
TailorMem: A New Chapter Ahead
The past year has been transformative for TailorMem: new leadership, strategic funding, stronger market presence, and a clear path toward scaling deep-tech membranes.
TailorMem at ABAF 2025: Revisiting Solid-State Electrolytes
TailorMem took part in the ABAF 2025 conference in Brno, reconnecting with solid-state polymer electrolyte research and exploring future collaborations.
Projects
TailorMem membrane Hollex ADL 911 NR is based on block copolymer that has been developed in IMC CAS and UCTP (CZ). It was patented and licenced to TailorMem company.
This copolymer was sucessfully used for membrane preparation and functionalization and further optimized in NEWELY project for use in anion exchange membrane water electrolysis (AEMWE). This membrane has optimal water transport, high hydroxide (OH – ) conductivity and high chemical stability in alkaline environment.
The milestone of NEWELY project (2V@ 1A/cm²) was outperformed with (1.5 A/cm² @2V) in 0.1 M KOH at 50°C with dry cathode with only 3 mg/cm² of non-PGM OXYGN-N and H2GEN-M on the anode and the cathode side, respectively, assembled in a CCS-like MEA with a 60μm thick membrane. More at Newely.eu.
This project has received funding from the Fuel Cells and Hydrogen 2 Joint Undertaking (now Clean Hydrogen Partnership) under Grant Agreement No 875118. This Joint Undertaking receives support from the European Union’s Horizon 2020 Research and Innovation program, Hydrogen Europe and Hydrogen Europe Research.
In 2024–2026, we are supported as part of the Technological Incubation project by CzechInvest, the business and investment development agency.
The project is focused on transitioning the production of homogeneous membranes from discontinuous batch type production to a continuous roll2roll process with the option of reinforcement and crosslinking. Cation exchange membrane is also being developed within this project.
Partners
