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Electrochemical cell with emission controlled by electrodeposition of copper

  • US 7,736,813 B2
  • Filed: 12/19/2005
  • Issued: 06/15/2010
  • Est. Priority Date: 12/21/2004
  • Status: Active Grant
First Claim
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1. 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.

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