Panasonic still occupies a portion of the Nevada gigafactory, manufacturing cells that Tesla puts into packs which go into their cars. They are ramping up produ

Panasonic still occupies a portion of the Nevada gigafactory, manufacturing cells that Tesla puts into packs which go into their cars. They are ramping up production capacity further, in fact. The new batteries are entirely Tesla's design, based on work by their research partners. So the new factories they're building in Germany, Texas, and possibly an addition to Shanghai will produce these new batteries.