Presentation
Energy materials

In general, the most stable configuration of a set of atoms consists in assembling them in such a way as to allow optimization of the electronic distribution, i.e. to minimize obstacles to electron transfer between elements of different electronic affinities (electronegativities). The optimum solution is then obtained for a combination of oxidizing (oxygen, fluorine...) and reducing (carbon, hydrogen...) elements in small molecules such as H₂O, CO₂ , HF.... The most efficient way to store energy in a material is therefore to introduce oxidizing and reducing elements in the right proportions: decomposition of the material will release this energy in oxidation-reduction reactions (i.e. optimization of electron distribution on atoms).

Such materials, made up of different atoms on which electron distribution is not optimal, are either mixtures of different oxidizing and reducing...