A proposal to develop new implantable, biocompatible, rechargeable batteries using advanced 3D printing techniques has earned Jun Li a Johnson Controls Graduate Fellowship. The project aims to address one of the main technological challenges for implantable medical devices by creating safe and nontoxic batteries. Li is a second-year PhD student in the laboratory of Xudong Wang, a professor of materials science and engineering—a group that has pioneered several state-of-the-art rechargeable battery systems. The award provides two years of support.