The global objectives, although sometimes difficult to simultaneously fulfill, are clearly to reduce our consumption of fossil fuels and use electricity as a clean vector of energy. To that purpose batteries, supercapacitors and fuel cells are each, depending on the targeted application, systems with many advantages over larger ones (hydraulic storage, sun or wind based production of electricity). These three solutions need however to be improved (on aging, capacity and/or power) to become the most important tools they are foreseen to be. Starting from National/European network vision, their implementation into today’s research in a Lab will be described. In particular, at Institut des Matériaux Jean Rouxel in Pr. D. Guyomard’s group, the 3 systems are studied leading to major improvements easing their more generalized use. The link with companies involved in these researches will also be presented.
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