GM partnered with Samsung for one[0]. Of course now they just announced layoffs at the EV plant[1], because most people still don’t want electrics cars. The investment needs to be tied to demand. If not, it’s just a lot of wasted money.
It seems they’d be better off waiting for better/cheaper battery tech, so they can build out those factories and make cheaper EVs that people might actually buy at scale. Right now the market still feels niche.
