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Skeleton and Karlsruhe Institute of Technology developing a new graphene battery with 15-second charging time; SuperBattery

Skeleton Technologies, a global leader in graphene-based ultracapacitor energy storage, has partnered with the Karlsruhe Institute of Technology to complete the development of the SuperBattery, a groundbreaking graphene battery with a 15-second charging time.

This extra-fast charging time coupled with charging cycles counted in hundreds of thousands make the SuperBattery an attractive solution for the three main issues affecting electric vehicles: slow charging times, battery degradation, and range anxiety.

The key differentiator for the SuperBattery is Skeleton’s patented Curved Graphene carbon material, enabling the high power and long lifetime of ultracapacitors to be applied in a graphene battery.

Ultracapacitors are increasingly emerging as the ideal complementary technology to lithium-ion batteries, as also shown by Tesla’s acquisition of ultracapacitor manufacturer Maxwell Technologies in the hopes of improving batteries used in Tesla’s electric vehicles.

The development of Curved Graphene has been supported by EIT InnoEnergy, the innovation engine for sustainable energy across Europe which is also the first backer of Northvolt, the Swedish battery manufacturer.

Cooperation between European energy storage companies is key for the EU to be a global leader in energy storage. We are delighted to have signed the SuperBattery development deal with Karlsruhe Institute of Technology and combine forces to bring to market a technology that will blow existing EV charging solutions out of the water.

The SuperBattery is a game changer for the automotive industry. Together with Li-ion batteries, they have it all: high energy and power density, long lifetime, and 15-second charging time.

—Skeleton Technologies’ CEO Taavi Madiberk

The Karlsruhe Institute for Technology is a well-known actor in the development of energy storage technologies. Within the cooperation, the synergies between Skeleton and KIT will be used to bring next-generation energy storage technologies such as the SuperBattery to market readiness.

We see Skeleton as a perfect match which fits for our purpose. Skeleton is both flexible and big enough to develop a new process, transfer our knowledge into a product and bring it to the market.

—Maximilian Fichtner, Research Unit leader at the KIT and director at the Helmholtz-Institute Ulm

The SuperBattery has already garnered a lot of attention in the automotive and transportation sectors. Recently, Skeleton Technologies signed a €1-billion Letter of Intent with a leading automotive OEM to bring the technology to the market.



15 seconds is a couple of times the typical 0-60 time of LDVs currently for sale.  Perfect for hybrids.


Is this a high capacity capacitor or a low capacity battery? Can't tell without knowing more about the energy density and charge retention.


A massively uniformative press release by Skeleton, which blurs which bits are an ultracapacitor and which a supporting lithium battery, which ain't gonna charge in no 15 seconds.

Their website is equally uninformative.

So far as can be seen from the 'information' released, the graphene battery is no more than a common or garden ultracapacitor combined with an equally vanilla lithium battery, with the only crossover being their haze of terminology.


This sounds an awful lot like a next-generation pseudocapacitor, but of course we won't know until the info is released.

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