Oct 14, 2025
ionysis and Carbonade have successfully completed their first joint project on catalyst-coated membranes (CCMs) for CO2 electrolysis applications.
Freiburg, 14.10.2025 – In joint development efforts, ionysis and Carbonade tested new catalyst-coated membrane (CCM) compositions and designs for application in CO2 electrolysis. The evaluation showed that ionysis’ CCMs and gas diffusion electrodes (GDEs) – based on Carbonades’ proprietary catalyst materials - achieved longer durability resulting from enhanced mechanical stability compared to Carbonade’s state-of-the-art reference cells.
The collaboration focused on rapid prototyping and testing CCMs for use in CO2 electrolysis applications. Through close coordination, the two teams were able to bring concepts from design to evaluation within a short timeframe.
“Working with the ionysis team has been an absolute pleasure. Their expertise and professionalism allowed us to tailor a solution specifically for our unique electrolyzer layer design. Once the objectives were set, the work was completed efficiently and in short time.”
“The results from this first project with Carbonade are very encouraging,” said Dr. Matthias Breitwieser, CTO ionysis. “In particular for emerging CO2 electrolysis companies, who need high quality CCMs and GDEs based on their proprietary catalyst or polymer materials, we are the right partner.”
Based on these findings, ionysis and Carbonade plan to continue working together to assess scale-up opportunities and further refine and improve the technology for industrial carbon utilization applications.
This initial project highlights the value of practical collaboration in advancing materials for CCUS, with both companies contributing complementary expertise to address key performance challenges.
About ionysis
ionysis GmbH develops highly efficient, emission-free and sustainable core components for fuel cells and electrolyzers. This includes the so-called "membrane electrode assemblies" with a significantly reduced content of perfluorinated substances. The aim is to further develop novel, more performant and environmentally friendly membrane electrode assemblies and to demonstrate their technical feasibility on a large scale. ionysis began operations in September 2022, and by end of 2024, it has grown to a team of 26 people. The foundation for this spin-off from Hahn-Schickard and the University of Freiburg was established through several publicly funded research projects. The company secured seed financing by two strategic partners. The ISO 9001 certification was issued by DEKRA.
Contact: Dr. Matthias Breitwieser (CTO): matthias.breitwieser@ionysis.com
About Carbonade
Carbonade is pioneering the next generation of carbon utilization technology with its cutting-edge electrochemical CO₂ recycling solution. At the heart of our innovation is a proprietary low-temperature electrolyzer that uses renewable electricity to efficiently convert CO₂ into Syngas (CO+H₂), a critical feedstock for producing fuels, plastics, and industrial chemicals.
By offering a scalable, cost-effective pathway to transform CO₂ emissions into valuable resources, Carbonade is enabling industries to decarbonize while creating economic value.
Headquartered in Israel, Carbonade has raised a $2M pre-seed round from leading climate-focused venture capital firms across the U.S., Europe, and Israel. We’ve also secured a $1M non-dilutive grant to accelerate our R&D and technology validation.
Website: https://www.carbonade.co/
Contact: Carbonade – Raanan Shelach (CEO): Raanan.shelach@carbonade.co