Abstract: The invention concerns a battery (1) comprising at least a first electrode (11) and a second electrode (12), placed at a suitable distance from each other, wherein said battery comprise an active material is between said electrodes (11, 12), said active material comprising: at least one oxygen-containing compound selected from the group consisting of MgO, ZnO, ZrOCl2, ZrO2, SiO2, Bi2O3, Al2O3, Fe3O4, Fe2O3 and TiO2; at least one salt selected from a chloride-containing salt and a sulphate-containing salt; at least one thickener additive selected from the group consisting of agar-agar, xanthan gum, methylcellulose, and gum arabic, and at least one plasticizer additive, wherein the particle size of the at least one oxygen-based compound has an average diameter in the range from 10 nm to 40 ?m.

Abstract: The invention relates to an active material comprising at least one oxygen containing compound selected from the group consisting of MgO, ZnO, ZrOCl2, ZrO2, SiO2, Bi2O3, Al2O3 and TiO2, at least one thickener additive selected from the group consisting of agar agar, xanthan gum, methylcellulose, and arabic gum, and at least one plasticizer additive, wherein the particle size of the at least one oxygen-based compound has an average diameter in the range from 10 nm to 40 ?m. The invention concerns also an electric power generator (EPG) comprising at least a first electrode (11) and a second electrode (12), wherein the electric power generator comprises the active material between said electrodes (11,12).