Skip to main content Skip to secondary navigation

Energy Engagement Programs is a cross-campus effort of theĀ Precourt Institute for Energy.

Main content start

Ionel Stefan

CTO, Amprius

Dr. Ionel Stefan is Amprius' Chief Technology Officer. He joined Amprius in its very early days as a Senior Scientist, initially to lead electrochemistry for silicon nanowire anode-based lithium-ion batteries. Dr. Stefan now leads Amprius' development of silicon nanowire electrochemistry, cell technology -- including material design, cell design and engineering -- and product development. He is a recognized expert in electrochemistry and energy storage and leads the company's scientific research and development activities for advancing lithium-ion cell performance.