An ion-conducting layer in an electrochromic thin film layer and a preparation method and application thereof

Abstract

The application relates to an ion conductive layer in an electrochromic thin film layer and a preparation method and application thereof, the electrochromic thin film layer comprising a first transparent conductive layer, an electrochromic layer, an ion conductive layer, an ion storage layer and a second transparent conductive layer arranged in sequence, the material of the ion conductive layer comprising any one or a combination of at least two of a multi-element oxide composite material, a doped oxide, a multi-layer composite structure or a lithium-based oxide; the multi-element oxide composite material comprising SiO2-Ta2O5 and / or WO3-Nb2O5; and the lithium-based oxide comprising LiAlO2. The application optimizes an ion transmission channel by designing the material of the ion conductive layer, realizes the balance of high ion conductivity and low electron conductivity, improves the interface compatibility between the ion conductive layer and adjacent functional layers, reduces the interface impedance, improves the ion transmission efficiency, improves the optical performance of the electrochromic thin film layer, and increases the cycle life of the electrochromic thin film layer.

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