US Patent 7869114 Electrochemical system comprising at least one partial making up zone

Electrochromic device having at least one carrier substrate (S1) provided with a functional multilayer defining a deposition zone and comprising, in succession:a first electroconductive layer (1), (the one closest to the substrate);a first electrochemically active layer (2);an electrolyte layer (3);a second electrochemically active layer (4); anda second electroconductive layer (5),characterized in that the functional multilayer is deactivated, with the exception of the first electrochemically active layer (2), in at least a first, partial margination zone (A) located along at least one edge of said deposition zone.