Ultium

Ultium is an electric vehicle battery and motor architecture developed by General Motors.[1] It is planned to be deployed for battery electric vehicles from General Motors portfolio brands along with vehicles from Honda[2] and Acura.[3]

Overview

Ultium is characterized by a modular layout, and large, pouch-style cells which can be stacked horizontally or vertically, depending on the form factor needs of each vehicle. A common charging and battery management system serves as the basis for each vehicle's electrical architecture, and a common series of motors and inverters known as Ultium Drive will be produced for use across the entire lineup.[4][5] Ultium is used by GM's BEV3 platform and BT1 platform.[6]

Ultium Drive

Ultium vehicles are powered by a family of five interchangeable drive units and three motors, known collectively as "Ultium Drive."[5]

Planned units include:[7]

  • A 180 kW (245 PS; 241 hp) front-drive motor
  • A 255 kW (347 PS; 342 hp) front-drive and rear-drive motor
  • A 62 kW (84 PS; 83 hp) all-wheel drive assist motor

The motors can be configured in front-wheel drive, rear-wheel drive and all-wheel drive combinations.

Ultium batteries

In-house Ultium battery cells feature Nickel, Cobalt, Manganese Aluminum (NCMA) chemistry, and will be manufactured in a joint-venture with partner LG.

At least four production facilities are planned, as of 2021:[8]

  • Ultium Cells LLC - Lordstown, Ohio, USA (Opening mid-2022, 35GWh capacity)[9]
  • Ultium Cells LLC - Spring Hill, Tennessee, USA (Opening mid-2023, 35GWh capacity)[10]
  • Ultium Cells LLC - Lansing, Michigan, USA (Opening late-2024, 50GWh capacity)[11]
  • Unknown location, unknown opening date.[12]

The Ultium battery is designed to accommodate charging speeds of up to 350 kW.

Ultium features a wireless battery management system or wBMS, the first battery architecture from any automaker to do so.[13]


Vehicles using Ultium

Current

Planned

See also

References
  1. "New Electric Vehicle Battery Technology | General Motors". www.gm.com. Retrieved 2022-02-15.
  2. "2024 Honda Prologue is new electric crossover based on GM's Ultium platform". Motor Authority. Retrieved 2022-02-10.
  3. "GM's Ultium-Based Honda And Acura Confirmed". InsideEVs. Retrieved 2022-02-10.
  4. "GM Reveals New Ultium Batteries and a Flexible Global Platform to Rapidly Grow its EV Portfolio". media.gm.com. 2020-03-04. Retrieved 2022-02-10.
  5. "Ultium Drive to Help Power GM's All-Electric Future". media.gm.com. 2020-09-16. Retrieved 2022-02-10.
  6. LaReau, Jamie L. "GM unveils 11 future EVs, new batteries and its plan to beat Tesla". Detroit Free Press. Retrieved April 22, 2020.
  7. "GM Reveals All-New EV Motors to Power an All-Electric Future". media.gm.com. 2021-09-21. Retrieved 2022-02-10.
  8. "Q2 2021 Letter to Shareholders". media.gm.com. 2021-08-04. Retrieved 2022-02-10.
  9. King, R. J. (2021-04-16). "GM and LG Energy Announce $2.3B Battery Cell Plant in Tennessee". DBusiness Magazine. Retrieved 2022-04-30.
  10. "LG and General Motors to spend 2.7 trillion won for 2nd factory". THE ELEC, Korea Electronics Industry Media (in Korean). 2021-04-19. Retrieved 2022-04-30.
  11. Hill, Joshua S. (2022-01-27). "GM and LG Energy commit $A3.65 billion for third Ultium EV battery plant". The Driven. Retrieved 2022-02-10.
  12. Lopez, Jonathan (2 February 2022). "GM To Announce Fourth U.S. Ultium Cells Battery Plant Location In The First Half Of 2022". GM Authority. Retrieved 5 April 2022.
  13. "General Motors' Future Electric Vehicles to Debut Industry's First Wireless Battery Management System". media.gm.com. 2020-09-09. Retrieved 2022-02-10.
  14. Kane, Mark (18 November 2021). "Merchants Fleet Orders 5,400 BrightDrop EV410 Electric Vans". InsideEVs. Retrieved 5 April 2022.
  15. Priddle, Alisa (15 December 2021). "2024 GMC Sierra Electric Full-Size Pickup Truck to Join EV Silverado, Hummer Soon-ish". Motor Trend. Retrieved 5 April 2022.
  16. Dorian, Drew (15 January 2021). "2025 Cadillac Celestiq". Car and Driver. Retrieved 5 April 2022.
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