I don't think the big US automakers have any in-house EV battery capacity. Conventional car batteries are not a differentiating component and so have always bee

I don't think the big US automakers have any in-house EV battery capacity. Conventional car batteries are not a differentiating component and so have always been supplied by outside contract providers. Chevy Volt batteries are made by LG, originally in Korea but I think they now have a plant in Michigan.