Experts in Nafion™, Pioneers in its Application


Ion Power GmbH. has established itself as a pioneer in the application of Nafion™ technology for various electrochemical applications. With a team of experts and patented technology, we’re committed to advancing the field of energy storage and conversion while promoting sustainability and efficiency.


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Ion Power GmbH

Ion Power GmbH, founded in 1999 by Stephen Grot Ph.D, is committed to promoting the use of Nafion™ Ion Exchange Materials for various electrochemical applications. Our patented technology enables the manufacture of ultra-thin, low-resistance, durable, and consistently high-performing membrane electrode assemblies (MEAs) for proton exchange membrane (PEM) fuel cell applications.

In addition to our unique fuel cell MEA process, we offer high-performance catalyzed membranes and Nafion™ dispersions for use in water electrolyzers. As a worldwide distributor of Chemours Nafion™ perfluorosulfonic acid polymer materials, we inventory a wide range of products for quick shipment, including custom-sized membranes. Visit our product section or company store for all your one-stop Nafion™ product requirements.

We are actively engaged in private and government-sponsored R&D activities aimed at improving fuel cell components and developing non-fuel cell related applications that use Nafion™ for the industrial and military markets. Contact us to learn more about our research activities and how we can assist you in developing your applications.

Nafion™ Research & Press Release Updates

Stay up to date with Ion Power GmbH's efforts to build a better future.


This is where we provide updates on our latest research, news, and environmental initiatives. As a leading provider of Nafion™ products, we are committed to promoting sustainability and efficiency in energy storage and conversion. Stay tuned for the latest updates on our Nafion™ products and our efforts to build a better future.


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Ion Power GmbH’s Value Added Products Containing Nafion™

Utilizing our combined industrial experience of many years working with Nafion™, we are constantly innovating new products and applications with Nafion™ together with our customers.

Our key products are LIQUion™, LITHion™, POWDion™, VANADion™, HYDRion™, and Catalyst Coated Membranes (CCM).

Product descriptions are listed below.

LIQUion™ Dispersions

LIQUion™ dispersions contain Nafion™ that is dispersed in a water or alcohol solvent mixture. They are used in various applications, including coatings, films, and catalyst layers, where they provide unique properties, such as high proton conductivity, good chemical and thermal stability, and small particle size.

The LIQUion™ dispersion has particle sizes measured down to a few hundred nanometers in size, indicating a dispersion down to the molecular level.

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LITHion™ Dispersions

LITHion™ is a neutral dispersion that contains lithiated Nafion™ polymer in an Isopropyl Alcohol solvent. It is widely used in research advanced lithium-ion batteries and other electrochemical devices. This pre-dispersed slurry can be easily applied to substrates, mixed with other solutions, or used to cast films and coat other materials.

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Nafion™ Tubing

Ion Power has developed a unique manufacturing process for the conversion of flat sheets of the NAFIONTM membranes into a tube with a heat-sealed seam. Tubes can be used in electrochemical processes where cell construction is in a cylindrical format.

The following grades of NAFIONTM membranes are available for tube forming, N324, N424 and N438. The seams can be formed in an “Overlap” configuration or a “Pinch” configuration, see photos. Seam lengths up to 1.23 meters are available, and tube diameters from 1 cm to 122 cm are available. The seam width is fixed at 2 cm; however small diameter tubes with “wrap-around” pinch seams have 2 mm seam widths.

Overlap seams are inherently stronger than the base membrane material, and in tension the base material will fail prior to the seam failure. Whereas Pinch seam configurations the seam will fail on tension forces greater than 10 pounds per linear inch of seam. Failure will result in re-inforcing fabric being pulled away from the ionomer layer of the membrane resulting in a hole in the membrane at the leading edge of the seam.

An option for forming a bag is also available by applying a pinch seam at the end of the tube. Ion transport properties at the seam are severely diminished and should be considered zero for engineering design purposes.


POWDion™ is a powder made from the Nafion™ perfluorosulfonic acid polymer.

This product comes in soluble and insoluble forms, with different particle sizes ranging from -40+60-mesh to -200-mesh.

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The VANADion™ Membrane is a composite membrane containing a thin Nafion™ coating on one face of a porous supporting membrane. It’s used in electrochemical energy storage batteries and various other electrochemical applications. This membrane is supplied in a dry form but should be properly wetted out prior to use.

The rugged support of the membrane allows for easy and fault-free cell assembly, while its high conductivity enables high cell power output while maintaining good cell voltage. With a positive side orientation, the membrane should be noted during cell assembly and start-up.

Manufacturers can enhance the performance of their electrochemical devices by incorporating VANADion™ Membrane, which offers superior proton conductivity in a rugged supported membrane structure.

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The HYDRion™ Electrolysis Membrane is a high-performance ion exchange membrane used in water electrolysis systems for hydrogen production. This product has a high proton conductivity and low hydrogen crossover, which makes it ideal for use in PEM water electrolyzers.

By using HYDRion™, manufacturers can achieve efficient and reliable hydrogen production, making it an essential component of modern energy storage and conversion technologies.

[divilifeshortcode id=’1376394′]

Fuel Cell Grade Catalyst Coated Membranes (CCM) & Kapton Framed

Ultra-thin (<20 micron) NAFION® containing membranes offer high power density and low resistance structures for MEA applications.

Membrane where you need it; not where you don’t! The catalyst Layer and membrane layer are formed in place on the GDL so no high cost membrane is needed. The KAPTON™ frames are integrated into the MEA parts resulting in a 1 mil (25.4 micron) thick KAPTON™ border.

Ion Power’s MEA manufacturing line utilizes state-of-the-art continuous roll to roll coating operations that are set up to handle the prototype and high-volume production requirements of today’s growing PEM fuel cell industry. So whether you need one or thousands of catalyst coated membranes for hydrogen fuel cells or water electrolyzers, contact Ion Power to discover how your application can “Turn On With Ion Power Catalyzed Membranes.”

The History of Nafion™

… the Journey of Progress


DuPont Company develops Nafion™ perfluorosulfonic acid polymer as a proton exchange membrane (PEM) for fuel cell applications. It was first used as a fuel cell membrane in the Gemini Space Program with a much higher durability than the incumbant membrane.

1970’s – 1980’s

DuPont researchers focus on commercial applications for Nafion™. It was also introduced to the chlor-alkali process, which helped eliminate mercury emissions from legacy processes used in chlor-alkali.


DuPont’s renewed interest in Hydrogen Fuel Cells sparks a new research effort at new Nafion™ based materials, such as dispersions, which were found to increase efficiency in electrodes. 


Ion Power, Inc. is founded by Stephen Grot Ph.D to promote the use of Nafion™ Ion Exchange Materials for electrochemical applications.


Researchers continue to work on improving the performance of Nafion™ and exploring new applications for the polymer, including in sensors, actuators, and biomedical devices. Nafion™ XL and HP introduced as world-class membranes for air breathing Hydrogen Fuel Cells.


The Chemours Company is spun off from DuPont and becomes the producer of Nafion™ in various forms, including pellets, dispersions, and membranes.

Present Day

Nafion™ remains a critical component in modern energy storage and conversion technologies, including fuel cells, batteries, and water electrolysis systems. The unique properties of Nafion™ continue to drive research and development efforts aimed at improving the performance and cost-effectiveness of electrochemical devices.