General Motors revealed its all-new modular platform and battery system, Ultium, on March 4, 2020 at its Tech Center campus in Warren, Michigan.DETROIT — General Motors will drop the name "Ultium" for its electric vehicle batteries and supporting technologies after spending years promoting the brand as it rethinks its EV and battery operations.The Detroit automaker confirmed the switch Tuesday ahead of an investor event in which GM is expected to discuss the change.It also is expected to use the event to to ...