In the project "Concept development for a steel battery housing with special consideration of joining technology and corrosion protection (steel battery housing)", Fraunhofer IPA is working with partners from industry and science to develop how battery housings for electric vehicles can be manufactured economically and sustainably, even in smaller quantities.
The battery housing is located in the floor area of the vehicle. Due to the particularly high requirements here, good corrosion resistance is crucial. In addition to the exterior, the accessible interior and the inaccessible area must be protected against corrosion when processing hollow profiles.
To date, little is known about corrosion protection coatings and pre-treatments for ultra-high-strength steels compared to the body steels commonly used. In addition, process heat and waste containing heavy metals can be saved in production by using alternative pre-treatment methods to the tried and tested zinc phosphating process. Corrosion protection concepts of this kind are of particular interest to small and medium-sized companies for smaller production runs. Fraunhofer IPA's task is to investigate and qualify corrosion protection concepts for steel battery housings in terms of their industrial feasibility.
The Federal Ministry for Economic Affairs and Energy (BMWi) is funding the IGF 42 LN project as part of a program cooperation of the seventh energy research program and industrial joint research under the motto "Leading technologies for the energy transition".
