While lithium-ion batteries are expected to provide the range far into the future, an ultracapacitor pack is going to power daily drives. Skeleton Technologies is working on fast-charging technology to enable an ultracapacitor pack to be charged in 15 seconds and to provide a range of about 50 kilometers.

Among the different graphene-based battery technologies and types, graphene lithium-ion batteries are expected to be implemented in the next 1-3 years, solid-state batteries within the next 4-8 years, and graphene supercapacitors within 10 years

Tesla acquired the Californian supercapacitor maker in 2019, leading some to speculate its EVs would use 'supercaps' for top acceleration. Two years on, it appears Elon Musk has moved on and sold Maxwell to UCAP Power, but Tesla has retained the company's dry electrode tech.

Solid-state batteries were heralded as the "holy grail of batteries" — their solid-state core is the perfect complement to solid-state electronics — in the Technology Outlook 2030 report by market research firm DNV (Det Norske Veritas, which means "the Norwegian truth").

FLAMMABILITY HAZARDS: The internal components of this product are combustible and may be ignited if a particular failure mode occurs and they are exposed to an ignition source or if subjected to direct flame.