FST Rail



In cities and long-distance traffic, trams and high-speed trains have been running on electric power fed from overhead lines or conductor rails for decades. With large-format high-performance battery systems from our majority holding XALT Energy and fuel cells from Freudenberg Sealing Technologies, the course is now set for the future on non-electrified (secondary) lines and in shunting traffic: The range of electric locomotives in passenger and freight traffic is increasing, and even remote stations can be reached without releasing emissions in the future.

At Freudenberg, today’s train runs on two tracks and has a battery and a fuel cell. In each case, we rely on our own components and a unique depth of added value in our production: from the separator through the cell to the fully developed and tested high-tech overall battery solution; from the membrane to the membrane electrode assembly (MEA) and the stack to the complete fuel cell system – the complete package from a single source. Upon request, electronics and software design are always included, as well as comprehensive after-sales service including remote monitoring

FST Rail



We see the fuel cell in combination with batteries as an integral part of the mobility of the future. In integrated systems, batteries buffer short-term additional requirements, for example, when accelerating, the base load is borne by the fuel cell.

Nils Martens, Senior Vice President of the Battery & Fuel Cell Systems Division, Freudenberg Sealing Technologies

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It’s time to be ahead of the times

Based on its unique materials, systems and technology expertise, Freudenberg Sealing Technologies is already building the bridge to tomorrow: with high-performance seals and components, functionally reliable modules such as fuel cell stacks and complete (battery) systems.



Our decades of materials and technology know-how are unparalleled anywhere in the world. But it is only together with the innovative strength of our engineers that Freudenberg develops new material and design concepts for tomorrow’s mobility. We provide well-founded answers to important challenges in the further development of e-mobility. We counter rising energy densities, for example, with intelligent multifunctional solutions in thermal management and functional reliability. Benefit from the high quality and efficiency of our products on your specific path into the mobile future.

FST Rail


Truck & Bus

At the Heart of High Performance

State-of-the-art cell technology. Since its founding in 2009, this has been the focus and driving force behind the energy solutions XALT Energy offers customers. XALT’s low-impedance cell designs, in combination with the use of advanced materials and world-class manufacturing standards, result in total energy systems that deliver exceptionally long and reliable lifecycle performance in some of the most demanding environments.

XALT’s prismatic pouch cell offers excellent power-to-energy ratios. Depending upon its chemistry, the prismatic pouch cell also offers high charge and discharge capabilities and can be easily recycled at the end of its useful life. XALT engineers are experts at evaluating the energy needs required to successfully power heavy-duty applications for land and sea; contact them today about configuring the ultimate lithium ion energy system for your needs.

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Power Your Innovation

XALT Energy specializes in the development of advanced hardware and software solutions that are perfectly matched to its cell technologies. The result is an optimized energy system that outperforms “mix and match” systems assembled from multiple sources. XALT offers a complete range of products, including battery modules and packs, battery disconnect units, string controller units, master control units, customizable software, battery rack systems and advanced telematics systems technology, that can be configured into a custom energy solution that will keep your applications powered up and running under the most demanding conditions.

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Ask the E-Mobility Experts

Do you have a question? Would you like an expert consultation on the sealing solution that best meets your requirements? Would you like a concrete offer? We look forward to meeting you.

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