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Method for determining cycle life of electrochromic material

A technology for electrochromic materials and cycle life, applied in material excitation analysis, electrical excitation analysis, etc., can solve the problems that voltage, current, and cycle life data cannot be considered, and electrochromic materials do not have a unified measurement method. To achieve the effect of improving accuracy, accurate and reliable data

Inactive Publication Date: 2017-05-31
CHINA BUILDING MATERIALS ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there is no unified measurement method for the cycle life of electrochromic materials. The commonly used measurement methods are simply to measure the number of cycles without taking into account factors such as voltage and current. Therefore, the measured cycle life data is not reliable.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0092] A test method for electrochromic material FTO-WO3-solid electrolyte-NiO-ITO cycle performance, comprising the following steps:

[0093] Set the ion implantation mode to constant voltage implantation, and set the voltage to 3V;

[0094] Set the transmittance (at 550nm) of constant pressure injection to 6%, and switch to ion extraction mode when the transmittance reaches the set transmittance;

[0095] The set time is 30s. When the transmittance in the colored state is still greater than the set transmittance within the set time, the cycle is stopped and the number of cycles is recorded. The number of cycles is the cycle life of the electrochromic material.

[0096] The ion extraction mode is constant voltage extraction, the set voltage is 3.8V,

[0097] Set the transmittance of constant pressure extraction (at 550nm) to 78%, and switch to ion implantation mode when the transmittance reaches the set transmittance;

[0098] The set time is 30s. When the transmittance in ...

Embodiment 2

[0101] A test method for electrochromic material FTO-WO3-solid electrolyte-NiO-ITO cycle performance, comprising the following steps:

[0102] Set the ion implantation mode to constant voltage implantation, and set the voltage to 3V;

[0103] Set the transmittance (at 550nm) of constant pressure injection to 2%, and switch to ion extraction mode when the transmittance reaches the set transmittance;

[0104] The set time is 110s. When the transmittance in the colored state is still greater than the set transmittance within the set time, the cycle is stopped and the number of cycles is recorded. The number of cycles is the cycle life of the electrochromic material.

[0105] The ion extraction mode is constant current extraction, and the set current is 30mA

[0106] Set the transmittance (at 550nm) of constant current extraction to 80%, and switch to ion implantation mode when the transmittance reaches the set transmittance;

[0107] The set time is 150s. When the transmittance...

Embodiment 3

[0110] A test method for electrochromic material FTO-WO3-solid electrolyte-NiO-ITO cycle performance, comprising the following steps:

[0111] Set the ion implantation mode to constant voltage implantation, and set the voltage to 3V;

[0112] Set the transmittance (at 550nm) of constant pressure injection to 8%, and switch to ion extraction mode when the transmittance reaches the set transmittance;

[0113] The set time is 10s. When the transmittance in the colored state is still greater than the set transmittance within the set time, the cycle is stopped and the number of cycles is recorded. The number of cycles is the cycle life of the electrochromic material.

[0114] The ion extraction mode is constant resistance extraction, and the resistance is set to 30Ω

[0115] Set the transmittance (at 550nm) of constant current extraction to 65%, and switch to ion implantation mode when the transmittance reaches the set transmittance;

[0116] The set time is 70s. When the transmi...

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Abstract

The invention provides a method for determining the cycle life of an electrochromic material, belonging to the testing field of chemical materials. The method comprises the following steps: setting an ion injection mode and an ion extraction mode; putting the electrochromic material into a cycle for continuously converting the ion injection mode and the ion extraction mode; and calculating the cycle index when the cycle naturally stops under the set ion injection mode and ion extraction mode, namely the cycle life of an electrochromic material. The method has the advantages of high automation degree and accurate and reliable determination result.

Description

technical field [0001] The invention relates to the field of chemical material testing, in particular to a method for measuring the cycle life of an electrochromic material. Background technique [0002] Electrochromism refers to the phenomenon that the optical properties of materials undergo reversible changes under the action of an external electric field, which is intuitively manifested as the process of reversible changes in the color and transparency of materials. The uniqueness of this color change is that it can be adjusted and controlled according to people's wishes, which is in line with the development trend of smart materials in the future. It has a very broad application prospect. [0003] At present, there is no unified measurement method for the cycle life of electrochromic materials. The commonly used measurement methods simply measure the number of cycles without taking into account factors such as voltage and current. Therefore, the measured cycle life data...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/66
CPCG01N21/66
Inventor 孟政王永斌刘静
Owner CHINA BUILDING MATERIALS ACAD
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