Dr. Ellen Sun leads the Advanced Materials Group at the United Technologies Research Center (UTRC). She has over 15 years of experience in advanced materials research and development and leading multi-disciplinary teams. Her areas of expertise include composite materials, protective coatings, high performance ceramics and alloys, and fuel cell stack and system development. Most recently, she led the development of conformable natural gas tank for vehicle applications under ARPA-E's sponsorship. She has a Ph.D. in Material Sciences and Engineering from Brown University.