Process for preparing multi-layer electrochromic stacks

A process for preparing a multi-layer electrochromic structure, comprising:

• depositing a film of a first liquid mixture onto an electrode substrate film to form an electrode electrochromic layer having an electrochemical state and a surface;
• depositing a film of a second liquid mixture onto a counter-electrode substrate to form a counter-electrode electrochromic layer comprising an inorganic electrochromic material on the counter-electrode substrate, wherein the counter-electrode electrochromic layer comprises a surface and an electrochemical state, the electrochemical state of the counter-electrode electrochromic layer being matched to the electrochemical state of the thermally treated electrode;
• and
• forming a laminate of the electrode electrochromic layer, the counter-electrode electrochromic layer and an ion conductor layer, the ion conductor layer being disposed between the surface of the electrode electrochromic layer and the surface of the counter-electrode electrochromic layer.