"Creating a sustainable energy future while protecting our environment is one of the most crucial challenges facing humanity today. To decarbonize our energy landscape, we need to move towards renewable (but intermittent) energy sources such as solar and wind power. My work focuses on the development of new materials for the storage and conversion of clean energy. In this talk, I will discuss the design of novel nanostructures for lithium-sulfur batteries, including core-shell, yolk-shell, 2D layered morphologies, etc. Such batteries have 5 times the energy density of lithium-ion batteries today, making them a very promising technology for the future."