We are a computational materials science research group in the Department of Materials Science and Engineering at MIT. We try to better understand materials properties by applying theories from solid state physics, quantum mechanics, and statistical mechanics. In some cases we can even predict materials properties before the materials themselves are synthesized. In addition, we have a small but excellent experimental group in which the integration between theory, computation and experiment occurs first hand. This group focuses on the design of better materials for rechargeable Li batteries, using a combination of ab-initio computations and well selected experiments.