An interesting fact: The battery contains Samsung SDI’s new prismatic lithium cells, which BMW recently introduced into their electric cars, thereby almost doubling their range. Each cell is monitored individually to ensure the maximum level of safety. A new cell balancing concept, which for the first time optimises the charging currents not only between the cells within each battery module, but also between the battery modules, contributes to the long service life.
Tesvolt has presented the new storage system at the Energy Storage Europe trade fair in Düsseldorf on the 14th of March 2017. “We are combining the new cells with the Active BAT Optimizer – our special battery management system – to ensure active cell balancing between all cells, even between the different battery modules“, said Simon Schandert, Director of Engineering at Tesvolt. „This allows us to achieve an extremely high battery system efficiency of 98 percent, and a lifespan of around 30 years.“
The new Tesvolt storage system can complete around 6,000 full charge cycles with a depth of discharge of 100 percent, which means that the entire battery capacity can be used. The storage system functions just as well with a low voltage of 48 volts as with a high voltage of 1,000 volts for stationary commercial and industrial applications.
The new TS storage system from Tesvolt will be available in all sizes from 4.8 kilowatt-hours up to power stations with multiple megawatt-hours, and clients can assemble their preferred capacity themselves on the basis of 4.8 kWh modules. The new 48 volt Tesvolt storage system for SMA Solar Technology’s Sunny Island system is now available for delivery. The high-voltage storage system will come onto the market after the Intersolar Europe in June. Samsung SDI and Tesvolt offer a 10-year performance warranty for the number of cycles and efficiency of the new batteries.
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