OptGeo Ferrite Research Project Receives Best Poster Paper Award
Lower material consumption combined with high performance: In the joint OptGeo Ferrite research project (01MV23001B), NEOSID and the Institute of Electrical Energy Conversion (IEW) at the University of Stuttgart reduced the ferrite volume of a vehicle pad for inductive electric vehicle charging by 30%.
The optimized system enables power transfer of up to 22 kW while achieving a DC-to-DC efficiency of up to 94.2%. These research findings therefore make an important contribution to the development of material-efficient, high-performance systems for the wireless charging of future electric vehicles.
Optimized Ferrite Geometry for Efficient Wireless Charging
Inductive charging transfers electrical energy contactlessly via a magnetic field between a charging unit embedded in the ground and a vehicle pad. Ferrite materials play an important role in this process: They guide the magnetic flux and support efficient energy transfer.
The aim of the OptGeo Ferrite research project is to optimize the geometry of the ferrite structures and reduce material requirements without significantly compromising the performance of the charging system. By closely combining scientific methods with NEOSID’s many years of expertise in materials and manufacturing, the ferrite volume of the vehicle pad under investigation was significantly reduced.
Project Results at a Glance
- 30% less ferrite volume in the vehicle pad
- Power transfer of up to 22 kW
- DC-to-DC efficiency of up to 94.2%
- Optimized use of materials for inductive charging systems
- Successful collaboration between academia and industry
Presentation at IEEE WPTCE 2026
The results of the research project were presented to an international audience of experts at the 2026 IEEE Wireless Power Technology Conference and Expo (WPTCE) in Halifax.
The strong interest from academia and industry, together with the numerous technical discussions held during the conference, highlighted the significant relevance of material-efficient solutions for the next generation of wireless charging.
Best Poster Paper Award for the Joint Research Work
A particular achievement was the presentation of the Best Poster Paper Award to the joint research work. The award recognizes the scientific quality and practical significance of the results achieved.
The award also confirms the importance of close collaboration between research and industry. It represents a shared success for all project partners involved and the entire project team.
NEOSID congratulates everyone involved on this special recognition and thanks the Institute of Electrical Energy Conversion at the University of Stuttgart for the outstanding collaboration.
We look forward to continuing our joint development of innovative solutions that enable high-performance, resource-efficient and energy-efficient electric mobility.