GM Builds First Lithium-ion Battery for Chevrolet Volt

Exactly three years since the day the Chevrolet Volt concept car debuted, GM today manufactured the first advanced lithium-ion battery for a mass-marketed electric vehicle at GM's Brownstown Battery Pack Assembly Plant.

In just five months, the Brownstown plant was converted from an empty facility to a production-ready battery manufacturing site. New machinery and specialized equipment have been installed and three primary assembly areas have been completed: battery module pre-assembly, final assembly and the battery pack main line.

The Volt’s battery pack is made up of multiple linked battery modules and more than 200 battery cells. The initial assembly area is where the prismatic-shaped cells are processed and installed by state-of-the-art flexible automated equipment into modules, which are then delivered to the battery pack main line.

The battery pack main line area features an Automated Guided Cart (ACG) system that includes operations for thermal and electrical assembly, along with quality and dimensional checks. The main line is also where battery pack final testing, verification and packaging for shipment take place.

Initial battery production at Brownstown will be used to validate the plant’s equipment and processes, and batteries will be sent to GM’s Global Battery Systems lab in Warren, Mich., for testing. This spring, GM will begin shipping batteries to GM’s Detroit-Hamtramck plant, the assembly location for the Volt, for use in production validation vehicles.

The Volt is an electric vehicle with extended-range capability. It is designed to drive up to 40 miles on electricity without using gasoline or producing tailpipe emissions. When the Volt’s lithium-ion battery is depleted of energy, a flex-fuel engine-generator seamlessly operates to extend the total driving range to about 300 miles before refueling or stopping to recharge the battery. Pricing has not been announced.

Credits: wilswong