Inside every smartphone and tablet lies a dense brick with a dark and complex history: its battery. The lithium that ferries charge back and forth likely started out in South American salt flats, where months of evaporation consumes millions of tons... 

Trials of a hydrogen-powered train are underway in the U.K. with an initial journey successfully completed between the locations of Long Marston and Evesham in the West Midlands region of England. The HydroFLEX train — which has been developed by a... 

The future of the auto industry may boil down to the difference made by a single letter: R. As in, the difference between a lithium-ion battery, like those found in today’s electric vehicles made by Tesla and others, and the lithium-iron phosphate... 

Volvo Trucks is now driven to roll out electrically-fueled heavy-duty trucks — the kind that makes short runs. It’s part of an effort by the state of California to help clean up air pollution and specifically in Los Angeles. Up first: about two dozen...