Tesla looks to pave the way for Chinese battery makers to come to U.S. China dominates the production of iron-based batteries thanks to a series of key patents, which have allowed the country to make 95% of the world's Lithium Iron Phosphate (LFP) batteries. However, these patents expire soon and Tesla said it plans to adopt LFP batteries in its fleet of standard-range vehicles globally and move battery production closer to its factories or Chinese battery makers to come to U.S.