Ju Li is the BEA Professor of Nuclear Science and Engineering and a Professor of Materials Science and Engineering at MIT. Using atomistic modeling and in situ experimental observations, his group investigated mechanical, electrochemical, and transport behaviors of materials, often under extreme stress, temperatures, and radiation environments, as well as novel means of energy storage and conversion. Ju was a winner of the 2005 Presidential Early Career Award for Scientists and Engineers, the 2006 MRS Outstanding Young Investigator Award, and the 2007 TR35 Award from Technology Review.