US automaker Ford will invest $3.5 billion to establish a lithium-ion electric vehicle battery plant in Marshall, Michigan, that will prioritize the production of batteries with lithium-iron-phosphate chemistries, it said Feb. 13. The facility will be the first “automaker-backed” lithium-iron-phosphate, or LFP, battery plant in the US, according to Ford, and the project will allow the automaker to diversify the…