Players in South Korea's electric vehicle battery market are aiming for the world's best.

Puddles of all sizes could be seen all over the ground around a massive steel structure that was thickly embedded with millions of steel beams because of the rain that had wetted most of the clay soil on the ground. Nonetheless, many of the 800 engineers and construction employees had shown up for work to "start going" on schedule for the electric vehicle battery manufacturing facility, being built in Glendale, Kentucky, some 84.5 ki....