Audi is working on its own fast-charging concept for its electric cars. A pilot is to be created in the second half of the year to test possible series production. The core of the concept is "premium" HPC charging in combination with a lounge offer. The power supply is to run via buffer storage.
In concrete terms, the "Audi Charging Hub" provides for six reservable charging points of 300 kW each. They have a two-storey design: the chargers are accessible at the bottom, while a lounge area is available as a place to stay at the top.
The concept is based on modular container cubes that will also house used lithium-ion batteries as buffer storage, among other things. Audi envisages the use of 2nd life modules from dismantled development vehicles, thus avoiding costly infrastructure expansion at the site with high-voltage supply lines and transformers.
"Thanks to such an approximately 2.45 MWh intermediate storage unit, the total of six charging points only require a common 400-volt power connection. Here, a power of 11 kW or more per cube is sufficient to continuously fill the three storage modules with a total capacity of 2.45 MWh and charge them overnight. Photovoltaic modules on the roof provide additional green energy," the Ingolstadt-based company elaborates on the technical approach. The setup is intended to facilitate the subsequent selection of potential locations, save costs and accelerate scheduling.