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Lithium aluminate solid-state ion-conducting layer and its preparation method and all-solid-state electrochromic device

A technology of electrochromic devices and ion-conducting layers, applied in the fields of materials, devices, and electrochromic glass, can solve problems such as slow response time, complexity, cost, and poor stability, and achieve improved ion conductivity and ion conduction rate, The effect of avoiding ion loss and speeding up the response time

Active Publication Date: 2021-01-12
江苏先进无机材料研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The preparation process used above is both complicated and costly, and the prepared ion-conducting layer has the problems of uneven color development, poor stability, poor optical adjustment performance, and slow response time.

Method used

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  • Lithium aluminate solid-state ion-conducting layer and its preparation method and all-solid-state electrochromic device
  • Lithium aluminate solid-state ion-conducting layer and its preparation method and all-solid-state electrochromic device
  • Lithium aluminate solid-state ion-conducting layer and its preparation method and all-solid-state electrochromic device

Examples

Experimental program
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Effect test

Embodiment 1

[0061] Clean the glass substrate, put it into the magnetron sputtering equipment, and sputter to form a transparent conductive material: the target material is ITO target material, the sputtering power supply is RF power supply, and the power density is 1w / cm 2 , the atmosphere is pure argon, the pressure is 0.5Pa, and the sputtering time is 60 minutes, an ITO conductive film with a smooth surface is obtained, and its thickness is 100-200nm. The surface resistance is measured, and the surface resistance is less than 50Ω.

Embodiment 2

[0063] Nickel oxide and zinc oxide mixed films are formed by sputtering on a glass substrate sputtered with transparent conductive materials: the target material is zinc-nickel target material, the sputtering power supply is DC power supply, and the power density is 1.5w / cm 2 , the atmosphere is pure argon, the pressure is 1.5Pa, and the sputtering time is 30 minutes, a nickel oxide zinc oxide mixed film with a smooth surface is obtained. The thickness is 100-200nm.

Embodiment 3

[0065] Formation of lithium aluminate (LiAlO) on nickel oxide zinc oxide mixed film x ) Solid-state ion-conducting layer film: aluminum-lithium alloy Al xLi(x=1) is used as the target material, which is prepared by magnetron reactive sputtering method with DC power supply, and amorphous porous lithium aluminate (LiAlO x ) solid-state ion-conducting layer film, its thickness is 220nm, the specific preparation conditions are as follows: background vacuum 8 × 10 -4 Pa, the substrate temperature is 60°C, the sputtering working atmosphere is a mixed gas of oxygen and argon, in which the volume ratio of oxygen is 15%, the coating time is 50min, the working pressure is 2.5Pa, and the sputtering power density is 1.5W / cm 2 . Figure 4 Showing the resulting lithium aluminate (LiAlO x ) Transmission spectrum of the solid-state ion-conducting layer film. It can be seen that the visible light transmittance range of the solid ion conducting layer can reach more than 90%. Figure 5 Show...

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Abstract

The invention relates to a lithium aluminate solid-state ion conduction layer, a preparation method thereof and an all-solid-state electrochromic device comprising the solid-state ion conduction layer. The chemical composition of the solid-state ion conduction layer is LiAlOx, wherein x is 1-5, preferably, 1.5-2. The solid-state ion conduction layer of the invention is low in price and easy to obtain and can be used for conducting lithium ions between a first color-changing layer and a second color-changing layer of the electrochromic device to realize electrochromism and improving the ion conductivity and the ion conduction rate.

Description

technical field [0001] The invention relates to the technical field of materials, in particular to an all-solid ion conductive layer material and a preparation method thereof, which are mainly used in technical fields such as electrochromic glass and devices. Background technique [0002] The ion conducting layer can be classified into a solution type, a gel type, a solid type, and the like according to the form of the film material. Compared with solution-type and gel-type electrochromic devices due to poor adhesion and easy leakage, the solid-state ion-conducting layer has more research value. Usually all-solid-state electrochromic glass includes a cathode, a first color-changing layer, an ion-conducting layer, a second color-changing layer, a dielectric layer, and an anode. The transition between the all-solid-state electrochromic glass can be realized between the colored state and the faded state. [0003] The article published by Ruben Batehns in Solar Energy Material...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1523
CPCG02F1/1525
Inventor 包山虎谢玲玲金平实
Owner 江苏先进无机材料研究院
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