Patent ID: 8722234

Claim:
A microbattery that comprises a stack of solid thin layers formed on a substrate, said stack being covered by an encapsulation layer and successively comprising: a first current collector/electrode assembly in direct contact with the substrate, a solid electrolyte, a second current collector/electrode assembly having a front surface in direct contact with the inner surface of the encapsulation layer and a rear surface in direct contact with the solid electrolyte and, electrical connections of the second current collector/electrode assembly to an external electrical load, wherein the electrical connections are formed by at least two electrically conductive barriers passing through the encapsulation layer from the inner surface to the outer surface of said encapsulation layer, each of said barriers having a lower wall in direct contact with the front surface of the second current collector/electrode assembly and an upper wall opening onto the outer surface of the encapsulation layer and in that said barriers form a compartmentalization network within the encapsulation layer.