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Old tires are hard to get rid of, and left in small mountains in salvage yards, can self-incinerate, causing massive clouds of dangerous smoke and lakes of toxic goo. Fires can last for months, virtually unassailable by fire fighters. Some still structurally sound tires can be re-treaded and gain a new life on the road.  Others, well past their usable life, are shredded and added to an asphalt mix to have a new life as the road. They might also end up lithium-ion batteries.  According to Oak Ridge National Laboratory, “Recycled tires could see new life in lithium-ion batteries that provide power to plug-in electric vehicles and store energy produced by wind and solar, say researchers. By modifying the microstructural …