Human development has always been linked to the development of materials. This postulate continues to hold true today, as emerging technologies continue to depend on the sometimes capricious ability of chemistry to provide materials that perform better and are adapted to the additional constraints imposed on them.
In this context, the "solid state chemistry-energy" pairing is essential to meet the fundamental/applied challenges of the energy transition. This lecture will attempt to illustrate the solid state chemist's approach to this vast field. For each of the sectors covered, linked either to energy collection or storage, we will look at the advances and fundamental/applied issues linked to the choice, abundance and development-design of materials.