SANTA CLARA, CA—Stellantis is investing an additional $55 million in Archer Aviation Inc. The start-up plans to build battery-powered air taxis at a new factory in Covington, GA.

Demand for electric vehicle cable and wire is outstripping copper supply, according to a recent study conducted by the University of Michigan.

KONGENS LYNGBY, Denmark—Engineers at the Technical University of Denmark here are developing solid-state batteries made from rock silicates.

DITZINGEN, Germany—Engineers at Trumpf have developed a way to efficiently recycle electric vehicle batteries on an industrial scale.

HOUSTON—Honeywell has launched battery manufacturing software that uses artificial intelligence technology to optimize the operation of gigafactories.

CHARLESTON, SC—Volvo Cars has started to produce the EX90 at its assembly plant here.

REDDITCH, England—Engineers at Samuel Taylor Ltd. here have developed a new aluminium-to-copper bonding process for electric vehicle battery applications, such as bus bars.

Torque, pressure and temperature sensors are playing a key role in designing new power trains for zero-emission airplanes.

COLOGNE, Germany—Ford Motor Co. has ramped up production of a battery-powered Explorer SUV at its first dedicated electric vehicle facility in Europe.

Toyota Material Handling is investing nearly $100 million to build a new facility that will assemble battery-powered forklifts.