European firm Skeleton Technologies’ is closer to reaching it 20Wh/kg goal with the launch of an ultracapacitor range utilising graphene to boost energy density.
The patented graphene material boosts the capacitance of the SkelCap 4500 series to 4500 farads.
The series has been designed for mass-market applications and meets the industry standard of a 60 mm diameter cylindrical cell.
The company claims the cell only loses 0.30 joules per farad when a 3900A current is run through it after achieving Equivalent Series resistance levels of 0.095 mΩ.
Volker Dudek, Chief Technology Officer at Skeleton Technologies, said: “We have set ourselves an ambitious technology development target of 20 Wh/kg by 2020, which is comparable with battery level energy density.”
In the last month, Skeleton Technologies secured €9.8 million in Series B financing with a strategic investor in the electrical equipment market to ramp up the deployment of their graphene ultracapacitors.
Skeleton Technologies ultracapacitors have been chosen for use by the European Space Agency. Next month, the company is due to announce a ultracapacitor product for the hybrid truck market.