Concept and 

High-Voltage Workshop

Where electromobility takes shape.

In our concept and high-voltage workshop, everything revolves around the challenges and opportunities of modern high-voltage batteries - the heart of electromobility. 
Our team of engineers, technicians and mechanics is passionate about developing groundbreaking battery systems, optimizing existing technologies and creating sustainable solutions for tomorrow's mobility. 
In doing so, we benefit from close cooperation with our other departments such as digital surfacing, body in white, exterior, interior, simulation, electric and electronic, which enrich our projects and enable us to achieve innovative results together.

We focus on the diagnosis of high-voltage batteries, where we dive deep into the technology through precise analysis processes and the use of specially developed tools. We examine and document bolt connections, sealing systems, wiring harnesses and paint applications down to the smallest detail. This knowledge allows us to analyze even complex components such as the battery management controller.

In addition to analysis, we are heavily involved in the development of new battery generations. Together with our partners, we design and build state-of-the-art, functionally integrated and immersion-cooled modules that are not only powerful, but also safe and efficient. Our approach ranges from component development to assembly processes and testing - always with the goal of advancing the technology.

Safety is central to our work. Through projects such as Thermal Propagation Occupant Protection Analysis (TPOPA), we are developing solutions to better protect occupants in electric vehicles. We are developing measures to prevent a fire in the battery from spreading from one cell to the next. Once these protections are integrated, we reassemble the batteries and prepare them for testing - unchanged on the outside, but with breakthrough innovations on the inside.

Another important aspect of our work is sustainability. We are looking at what happens to batteries that have lost their full capacity or have reached the end of their life. Together with our partners, we have already developed solutions such as a high-performance mobile charger made from recycled battery modules. This prototype shows how creative approaches and technical expertise go hand in hand in our workshop.

Our success is based on a dynamic and versatile team, supported by state-of-the-art infrastructure and a high level of expertise. With a clear focus on precision and safety, we ensure that every battery is treated optimally - from testing for temperature stability to gas tightness.

Arik Welsch
Arik Welsch

Head of Concept- and High-Voltage Workshop

ANSWERS TO FREQUENTLY ASKED QUESTIONS

High-voltage systems influence almost the entire vehicle. For this reason, the engineers and mechanics in our concept and high-voltage workshop work closely with the Strak, Body, Interior and Simulation departments in order to integrate the batteries into the overall vehicle architecture in a space-neutral and safe manner.

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When high-voltage batteries are at the end of their service life for the vehicle, we develop concepts for meaningful further use (2nd life). A successful example of our workshop is the development of a mobile high-performance charger built entirely from recycled battery modules.

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We cover the entire development cycle of battery systems: from detailed component diagnosis and analysis to the development of function-integrated and immersion-cooled modules and preparation for final testing in the vehicle.

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In immersion cooling, battery cells are directly surrounded by a dielectric (non-conductive) coolant. This advanced thermal management is particularly critical in high-performance applications, as it dissipates heat more efficiently than conventional systems and makes batteries more compact, safer and more powerful.

TPOPA stands for Thermal Propagation Occupant Protection Analysis. These are analyses and protection concepts that ensure that thermal runaway (fire) in a battery cell does not spread to neighboring cells. The aim is to provide maximum protection for vehicle occupants.

More about Body in White

During the diagnosis, battery systems are analyzed in depth down to the cell level. Specialists check screw connections, sealing systems, cable harnesses and the Battery Management Controller for faults, wear or optimisation potential in order to further develop the technology for future battery generations.