Patent ID: 7736813

Claim:
Electrochromic cell with absorption and emission of light controlled by electrodeposition under the action of a control voltage, comprising the following flexible elements, superimposed and respectively in intimate contact: a first electrode intended to be connected to a first potential of the control voltage, a first porous layer, formed of a mixture of polyvinylidene difluoride hexafluoropropylene (PVDF-HFP), polyethylene oxide (PEO) and an activated carbon powder, a porous separator, formed of a mixture of PVDF-HFP and PEO, a second electrode formed of a grid and connected to a second potential of the control voltage, a second porous layer, formed of a mixture of PVDF-HFP, PEO and carbon powder, an aqueous electrolytic solution containing a copper salt being contained in the first porous layer, in the separator and in the second porous layer.