Ultium is an electric vehicle battery and motor architecture developed by General Motors.[1] It is being deployed for battery electric vehicles from General Motors portfolio brands along with vehicles from Honda[2] and Acura.[3]
Ultium is characterized by a modular layout, using an Ultium battery to supply power to one or two Ultium Drive unit(s) using a common set of power electronics (charging, battery management system, and inverter). The high-voltage battery is composed of pouch cells that can be stacked horizontally or vertically, depending on the form factor appropriate for each vehicle, generally carried between the axles and under the floor. The traction motor(s), reduction gear, and power electronics are combined into a single Ultium Drive unit that drives the front, rear, or both axles. Three electric motor designs, sharing a common stator, are used across all planned vehicles.[4][5] Ultium is used by GM's BEV3 and BT1 platforms.[6]
- ^ "New Electric Vehicle Battery Technology | General Motors". www.gm.com. Retrieved February 15, 2022.
- ^ "2024 Honda Prologue is new electric crossover based on GM's Ultium platform". Motor Authority. Retrieved February 10, 2022.
- ^ "GM's Ultium-Based Honda And Acura Confirmed". InsideEVs. Retrieved February 10, 2022.
- ^ "GM Reveals New Ultium Batteries and a Flexible Global Platform to Rapidly Grow its EV Portfolio". media.gm.com. March 4, 2020. Retrieved February 10, 2022.
- ^ "Ultium Drive to Help Power GM's All-Electric Future". media.gm.com (Press release). September 16, 2020. Retrieved February 10, 2022.
- ^ LaReau, Jamie L. "GM unveils 11 future EVs, new batteries and its plan to beat Tesla". Detroit Free Press. Retrieved April 22, 2020.