ELECTROCHEMICAL DEVICE, SUCH AS A MICROBATTERY OR AN ELECTROCHROMIC SYSTEM, COVERED BY AN ENCAPSULATION LAYER COMPRISING A BARRIER FILM AND AN ADHESIVE FILM, AND METHOD FOR FABRICATING ONE SUCH DEVICE

An electrochemical device, such as a microbattery or an electrochromic system, including at least one stack of active layers containing lithium, said stack being arranged on a substrate and being covered by an encapsulation layer. The encapsulation layer includes at least: a barrier film presenting at least one electrically insulating surface and including at least one layer hermetic to oxidising species, said adhesive film including a juxtaposition of electrically conducting adhesive strips and of electrically insulating adhesive strips, and an adhesive film, provided with a first surface and a second surface, the first surface being in contact with the electrically insulating surface of the barrier film and the second surface covering the stack of active layers and a part of the substrate.