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PressClub Global · Article.

FastCharge" research project evaluates fast-charging technologies at the boundaries of what is technically feasible.

Charging capacity of up to 450 kW allows for significant reductions in charging times. Industrial consortium increases acceptance of electro-mobility through new technologies.

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Electrification
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Munich. How fast will we be able to charge at the charging station of the future? FastCharge will provide the answer to one of the most urgent questions about electro-mobility. Back in July 2016, the industrial companies involved in the research project began to study electric vehicles with significantly shortened charging times and the associated infrastructure and to build the respective prototypes. Participants of the three-year project are Allego GmbH, the BMW Group as the consortium leader, Phoenix Contact E-Mobility GmbH, as well as Dr. Ing. h.c. F. Porsche AG and Siemens AG. The German Federal Ministry of Transport and Digital Infrastructure supports the FastCharge research project with € 7.8 million. The National Hydrogen and Fuel Cell Technology Organization (NOW) supervises and coordinates the compliance with the grant requirements.

 

The charging time of electric vehicles depends primarily on current and voltage: the higher the voltage and amperage, the faster the battery can be filled. However, in real life application, these factors cannot be increased at will. This is why the FastCharge project focuses on the study of the technical and physical limits of all components and systems involved in charging, both in the vehicle and the infrastructure.

 

The anticipated charging capacity is up to 450 kilowatts, three times the maximum charging capacity available at stations today. A voltage of 900 volts and an amplitude of 500 amperes for a projected charging time of under 15 minutes pose major challenges on all components involved. Consequently, it is planned to cool down charging cables, plugs and vehicle power sockets during the charging process, allowing for the use of more flexible cables with smaller diameters that can be handled like today’s fuel hoses. For this solution, FastCharge applies the plugs and standards of the Combined Charging System (CCS), which has already stood the test of everyday operations in today’s series-production e-cars. This would mean that vehicles with lower current and voltage demands can easily be serviced at the fast-charging stations too.

The collaborative project studies all aspects of fast charging in practical application, aiming to introduce and manufacture the required technologies on an industrial scale. This is why, alongside analyzing potential capacity increases in the charging process, the project also investigates the prerequisites and processes for the operation of ultrafast charging systems, including an automated registration and billing process for customers. The combined expertise of the individual project partners ensures that the entire value chain is covered. It is planned that, as early as next year, the complete system will be ready to reach the prototyping stage and be presented to the public. This way, FastCharge will play an important part in increasing long-distance viability and consequently the market acceptance of battery electric vehicles.

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