https://newatlas.com/automotive/factorial-solid-state-battery-b-sample/

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Factorial is ultimately aiming for vehicle ranges over 600 miles (966 km) per charge from a 90-kWh battery that drops around 30% in weight and size compared to a conventional lithium-ion pack. The FEST batteries are also designed to be produced using the same equipment used to produce lithium-ion batteries, with minimal changes.