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From "New Graphene-Based SuperBattery To Charge In 15 Seconds":


"The SuperBattery will utilize Skeleton’s patented Curved Graphene carbon material to achieve a charging time of just 15 seconds (240C) and charging cycles counted in hundreds of thousands.

As in the case of other ultracapacitors, also this one is not energy-dense enough to replace the lithium-ion batteries, although it beats lead-acid and NiMH, reaching some 60 Wh/kg."

• GM to engineer, validate, homologate and build the Nikola Badger for both the battery electric vehicle and fuel cell electric vehicle variants as part of the in-kind services.
• GM Will Manufacture Badger Pickup Truck For Nikola

"The announcement builds on the agreement signed between the companies in April to jointly develop two all-new electric vehicles for Honda based on GM’s highly flexible global EV platform powered by Ultium batteries. The GM-Honda relationship, which began more than two decades ago, includes recent collaboration between the companies on fuel cells, batteries and the Cruise Origin shared autonomous vehicle."
GM and Honda propose establishing alliance extending well beyond EV and fuel-cell tech