General Motors revealed Tuesday a new battery chemistry called lithium-manganese-rich (LMR), which it says should slash costs while delivering driving range that's just shy of the most advanced batteries on the market. "With LMR, we can deliver over 400-mile range in our in our trucks while significantly reducing our battery costs," Kurt Kelty, GM's vice president of battery, propulsion and sustainability, told TechCrunch. LMR will also dramatically reduce the amount of nickel and cobalt compared with GM's ...