Scientists use X-ray beams to observe tiny movements, deep inside a lithium battery

Researchers at the U.S. Department of Energy's (DOE) Argonne National Laboratory have used a cutting-edge X-ray technique to view the movements of components inside an operating battery cell. The study is one of the first times that such movements have been directly observed in fine detail—at the scale of a millionth of a meter—while a battery charges and discharges.