Akasol has unveiled its new High Energy Battery AKASystem AKM CYC which offers energy density of 221Wh/kg with liquid cooled battery modules, which are scalable and can be integrated in various system designs at the pack level.
Akasol claims the new product sets a new benchmark in terms of energy content since full-electric city buses can be equipped with battery system capacities between 600 and 1,000kWh, depending on the vehicle size.
The AKAModule CYC comes in two standard versions. The small version (AKAModule 64 CYC) is the same size as the PHEV VDA battery module standard and is thermally managed with cooling plates inside the system. The large version (AKAModule 150 CYC) has an integrated liquid cooling structure, which ensures efficient thermal management of each battery cell in larger module design.
To achieve very high energy density in combination with the required charge and discharge power, AKASOL has used 21,700 cylindrical cells which it says are specifically designed for use in professional and commercial applications in terms of cycle life.
Akasol says that this technology enables it to outperform current solid-state technology in terms of price competitiveness and availability, while increasing energy density by around 30-40 per cent. It plans to bring the solution to series production in 2021 and already has customers starting sample operation by the end of this year.
2nd Generation OEM PRC approaches serial production
AKASOL is also introducing the second Generation of its AKASystem OEM PRC, the first generation of which powers the EvoBus eCitaro with an installed capacity of up to 294kWh. The second Generation will offer more than 33 per cent more energy and achieve around 400kWh installed capacity in the same installation space. The system can can be fast charged (even with smaller installed battery packs) with up to 500kW at the most powerful charging stations for commercial vehicles currently on the market.
The system is currently in its test and validation process and will be available at the end of 2019, going into serial production for two commercial vehicle customers in the middle of 2020.
Based in Germany, Akasol has a production facility in Langen (Hesse) with an annual production capacity of up to 300MWh, which will be expanded to 800MWh by 2020.