The "7 in 1"-Battery-Swapping-Station


The battery swap in just 1.5 minutes eliminates waiting times as necessary with the plug-in system, DC-plug-in included. This ensures productive fleet operation. Battery swapping leads to higher user frequencies which allows e-fueling stations to offer discount prices, Classic Comfort, dual-use storage service as well as system-internal network relief (systemic controlled charging instead of network problems due to permanent battery-aggregation).


Centralized plug-in systems guarantee controlled charging with more than 24 plug-in connections. This includes normal plug-in (AC charging) and fast plug-in (DC charging). The energy storage system is charged in line with the grid and thus controlled.

Vehicles with swapping technology can also use this service via an additional cable.


In the superhubs, recycled used batteries can be provided as storage for secondary and tertiary balancing power and redundancy, and active vehicle batteries can be enabled to largely meet the increasing demand for balancing storage systems (connecting the grid and mobility) with the help of power converters, transformers, and energy and battery management systems.


Due to the very high user frequency (up to 1000 e-cars per day per station) and the volume advantage of e-filling stations (superhub), the required electricity quantities can be purchased at 5-6 cents/kWh in the best case. Additional revenue can be generated by providing balancing power, enabling at best a kWh price of about 20 cents for the consumer. 


The lithium-ion batteries currently in use are exorbitantly conserved in the Super Hub if they are not fast-charged but gently charged in ≤ 0.5 C (2 hours) after battery swap and then used for continuous grid stabilization (see control power).


The Super Hub offers an attractive vision for future gas station use, including the convenience and services common today, such as car washing, night shopping, etc. Heavy use could also ensure sufficient revenue in additional service areas.


Through controlled recharging (at least ≤ 0.5 C) and the provision of storage capacity (see control energy), the e-filling station of the future itself contributes to blackout prevention.


The e-filling station of the future: Multi-use hub "7 in 1"

The filling stations as "super symbols" of the fossil era will themselves become pacemakers of the mobility turnaround ("pit stop for all").

Through the e-filling station of the future, this turnaround can be widely implemented in Europe as early as 2035.

The e-filling station of the future is an attractive alternative to a charging pole monoculture. It facilitates the mobility turnaround through its filling station approach, which accesses existing structures, offers plug-in (for individual mobility) and battery swap (for fleet mobility) at the same time, and is also open to innovations such as hydrogen technology, synthetic gasoline, or autonomous driving. This provides enough development space for all OEMs and all innovation paths.

It is also an interface between e-mobility and the smart grid, which needs large-scale relief through controlled charging and broad storage offerings in light of the nuclear and coal phase-out. Via multi e-filling stations, powerful battery storage agglomerations can be made available everywhere for the emerging virtual power plants.

The concept of the "E-filling station of the future" offers operators the opportunity to convert their filling station into a self-sufficient E-filling station with multi-use embedding.

The "7 in 1" e-station integrates battery swap into a station concept and is the missing link to flexible, controlled charging (≤ 0.5 C) that protects the batteries and the grid.

And it provides an additional secondary use by the permanently usable battery aggregates as a basis for sufficient grid-oriented energy storage (dual-use storage service). These storage units as part of the "7 in 1" network will be attractive providers of balancing energy for the virtual power plants of the future, which will have to permanently compensate for the high volatilities of green power generation.

Depending on customer needs, flexible and multifunctional infrastructures can be adapted and further developed with regard to the technologies and markets. Hydrogen refueling stations or carbon-based fuels with low CO2 values could be additionally offered within the multi-use refilling station; flanked by a conventional station store with snack options. "7 in 1" can be expanded to "8 in 1" or "9 in 1" if needed.

The "future E-filling station" will help to jump on the bandwagon of battery swapping, which is so highly successful in China and ensure that it develops its full economic potential in Europe.