Preparation of porous quasi-solidus electrochromism PVB electrolyte membrane with electrostatic spinning method and preparing technology thereof

An electrospinning method and electrochromic technology, applied in nonlinear optics, instruments, optics, etc., can solve problems such as easy leakage of liquid or gel electrolyte, difficulty in application by Chinese enterprises, and impact on product service life. Conducive to ion transmission, get rid of industry monopoly, good electrochromic performance effect

Inactive Publication Date: 2017-12-01
JIEYANG HONGGUANG COATED GLASS +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] One of the core problems encountered in the industrialization of electrochromic glass is the trouble of packaging technology: liquid or gel electrolyte is easy to leak in the packaging, which affects the service life of the product; the technology of all-solid electrochromic smart windows is only mastered In the hands of foreign monopoly companies, it is difficult for Chinese companies to apply

Method used

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  • Preparation of porous quasi-solidus electrochromism PVB electrolyte membrane with electrostatic spinning method and preparing technology thereof
  • Preparation of porous quasi-solidus electrochromism PVB electrolyte membrane with electrostatic spinning method and preparing technology thereof
  • Preparation of porous quasi-solidus electrochromism PVB electrolyte membrane with electrostatic spinning method and preparing technology thereof

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Embodiment 1

[0031] 1) At room temperature, weigh 5 g of polyvinyl butyral (PVB) and dissolve it in 100 g of ethanol. After 12 hours of magnetic stirring, a clear and transparent solution is obtained, and then ultrasonically treat the resulting solution for 20 minutes to make it uniformly dispersed. Prepare the spinning solution, set the electrospinning voltage to 12kV, the distance between the syringe needle and the receiving plate to 15cm, the flow rate of the spinning solution to 1mL / h, and the electrospinning time to 5min. The spinning solution is spun into a porous film and then peeled off , lay flat on a petri dish, and dry the petri dish and the prepared PVB electrolyte film in an oven at a temperature of 40°C;

[0032] 2), weigh 110g of lithium perchlorate, dissolve it in 1000mL propylene carbonate, and prepare a liquid electrolyte after fully stirring, and remove moisture from the propylene carbonate solution of lithium perchlorate obtained in the previous steps through a vacuum ov...

Embodiment 2

[0037] 1) At room temperature, weigh 5 g of polyvinyl butyral (PVB) and dissolve it in 100 g of ethanol. After 12 hours of magnetic stirring, a clear and transparent solution is obtained, and then ultrasonically disperses the obtained solution for 20 minutes to make it uniformly dispersed. To obtain the spinning solution, set the electrospinning voltage to be 15kV, the distance between the syringe needle and the receiving plate to be 15cm, the flow rate of the spinning solution to be 1mL / h, and the electrospinning time to be 8min. Lay it flat on a petri dish, and dry the petri dish together with the prepared PVB electrolyte film in an oven at 40°C;

[0038] 2), weigh 110g of lithium perchlorate, dissolve it in 1000mL propylene carbonate, and prepare a liquid electrolyte after fully stirring, and remove moisture from the propylene carbonate solution of lithium perchlorate obtained in the previous steps through a vacuum oven at a temperature of 80 degrees Celsius , the vacuum de...

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Abstract

The invention discloses preparation of porous quasi-solidus electrochromism PVB electrolyte membrane with electrostatic spinning method and a preparing technology thereof. The electrolyte membrane is characterized in that the thickness of the porous quasi-solidus electrochromism PVB electrolyte membrane is 0.2-15 micrometers; the light transmittance of non-conductive transparent film is 65-97% when the length of light waves is 550 nm; the thickness of a transparent conductive layer is 0.05-400 nm. The PVB electrolyte membrane has a porous structure which facilitates ion transport, the efficiency of 'complexing'-'decomplexing' lithium ions on a macromolecule chain segment is improved, which greatly reduces the encapsulating difficulty, the fluid content of the porous quasi-solidus electrochromism PVB electrolyte membrane prepared from electrostatic spinning is ultralow, which reduces the encapsulating difficulty; the light modulation amplitude and the coloration efficiency are high, which reduces the encapsulating difficulty and makes the electrolyte membrane extensively applied to practice of an electrochromism glass industrialization technology.

Description

【Technical field】 [0001] The invention belongs to the field of electrochromic thin films, in particular to an electrospinning method for preparing a porous quasi-solid electrochromic PVB electrolyte membrane and a preparation process thereof. 【Background technique】 [0002] The new material industry is a strategic emerging industry vigorously developed during the country's "13th Five-Year Plan" period, and it is also a key development area of ​​"Made in China 2025". In November 2016, the national "Thirteenth Five-Year Plan" key research and development plan project "Electrochromic Glass Industrialization Technology Development Strategy Seminar" was held in Jiangsu, which shows the importance of the electrochromic glass industry in emerging industries. Electrochromism refers to the phenomenon of reversible discoloration of materials under the action of an external electric field. The electrochromic smart window can adjust the light transmission under the action of the electr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/15
Inventor 王宏志辜为民刘学龙张青红李耀刚侯成义林改
Owner JIEYANG HONGGUANG COATED GLASS
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