Abstract: The invention relates to a monophasic electrolyte medium comprising: at least one alkaline-earth or alkaline metal salt, at least one hydrocarbon solvent, and between 1 and 50 vol. %, in relation to the total volume of said medium, of a hydrocarbon solubilising agent, different from said hydrocarbon solvent, of formula (I): Z-[(A)-(X)]q-(B)—Y.

Abstract: The present invention concerns the use, as an active electrode material, of compounds comprising at least one entity of formula (I): in which the phenyl group is substituted with one to four identical or different substituent(s) R, chosen from a hydrogen atom, a halogen atom chosen from fluorine, chlorine, bromine or iodine, a —C(?S)—S—C+ group, an —O—C+ group, an —S—C+ group, C+ being an alkali cation chosen from Li+, Na+ and K+, a (C1-C12) alkyl radical, a (C2-C12) alkenyl radical, a (C6-C14) aryl or heteroaryl radical; or two vicinal substituents R that can, if appropriate, be linked to each other to together form a 3- to 7-membered ring optionally including another heteroatom chosen from N, O or S; in the base or salt form; and the tautomeric forms of same. It also concerns an electrode material, an electrode and a lithium, sodium or potassium secondary battery, obtained from these compounds.

Abstract: The invention relates to an electrode for a lithium battery, comprising an electrochromic material as active material, and metal nanowires as electroconductive additive. Use of said electrode for making energy storage devices, the state of charge of which can be determined by calorimetric monitoring.

Abstract: The invention relates to a monophasic electrolyte medium comprising: at least one alkaline-earth or alkaline metal salt, at least one hydrocarbon solvent, and between 1 and 50 vol. %, in relation to the total volume of said medium, of a hydrocarbon solubilising agent, different from said hydrocarbon solvent, of formula (I): Z-[(A)-(X)]q-(B)—Y.

Abstract: The present invention concerns the use, as an active electrode material, of compounds comprising at least one entity of formula (I): in which the phenyl group is substituted with one to four identical or different substituent(s) R, chosen from a hydrogen atom, a halogen atom chosen from fluorine, chlorine, bromine or iodine, a —C(?S)—S—C+ group, an —O—C+ group, an —S—C+ group, C+ being an alkali cation chosen from Li+, Na+ and K+, a (C1-C 12) alkyl radical, a (C2-C12) alkenyl radical, a (C6-C14) aryl or heteroaryl radical; or two vicinal substituents R that can, if appropriate, be linked to each other to together form a 3- to 7-membered ring optionally including another heteroatom chosen from N, O or S; in the base or salt form; and the tautomeric forms of same. It also concerns an electrode material, an electrode and a lithium, sodium or potassium secondary battery, obtained from these compounds.