While researchers seek alternatives to lithium ion dominance in the battery space and European carmakers and governments pour billions into local battery production capacity to reduce import dependence, the leaders in the EV space cement their position with—that’s right—batteries. Tesla is the most sold battery electric vehicle globally as of end-2018. Nissan with its Leaf EV is third. China’s BYD is also in the top ten. The common denominator that makes them leaders in their field is batteries. Industry commentator Nick…