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Quasi-solid electrolyte and preparation method thereof

A quasi-solid-state, electrolyte technology, applied in the direction of capacitor electrolyte/absorbent, photovoltaic power generation, photosensitive equipment, etc., can solve the problems of easy leakage and difficult sealing of batteries, so as to solve the problems of difficult sealing and easy leakage, and improve long-term stability Effect

Inactive Publication Date: 2013-09-04
INST OF PLASMA PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0052] The purpose of the present invention is to provide a quasi-solid gel electrolyte, which not only solves the problems of liquid electrolyte batteries that are difficult to seal and is easy to leak, improves the long-term stability of the battery, but also obtains a higher photoelectric conversion efficiency, thereby effectively improving The performance of the DSC

Method used

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  • Quasi-solid electrolyte and preparation method thereof
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  • Quasi-solid electrolyte and preparation method thereof

Examples

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Effect test

Embodiment 1

[0084] In a glove box filled with high-purity nitrogen, weigh 0.028 g, 0.053 g, 1.54 g, 0.24 g, and 0.57 g of lithium iodide, iodine, acetonitrile, 4-tert-butylpyridine, 1,2-dimethyl- 3-Propyl imidazolium iodine. Place the weighed lithium iodide, iodine, 3-methoxypropionitrile, N-methylbenzimidazole, and 1,2-dimethyl-3-propylimidazole iodine in a sealable clean container, Ultrasonic dispersion was performed for 15 minutes to form a uniform electrolyte, and 0.15 g of an amide small-molecule gelling agent with n and m both 12, x and z both 1 and y 0 was added to it. Seal the container, heat the mixture in the container to 135°C, stir the system uniformly with magnetic stirring, and keep it for 30 minutes. After the mixed system is cooled to room temperature, the quasi-solid gel electrolyte Gel0 can be obtained.

[0085] Using electrochemical workstation to do cyclic voltammetry test, get the I of quasi-solid gel electrolyte Gel0 3 - The steady-state diffusion current and app...

Embodiment 2

[0088] In a glove box filled with high-purity nitrogen, weigh 0.028 g, 0.053 g, 1.8 g, 0.14 g, and 0.57 g of lithium iodide, iodine, 3-methoxypropionitrile, N-methylbenzimidazole, 1 , 2-Dimethyl-3-propylimidazolium iodide. Place the weighed lithium iodide, iodine, 3-methoxypropionitrile, N-methylbenzimidazole, and 1,2-dimethyl-3-propylimidazole iodine in a sealable clean container, Ultrasonic dispersion was performed for 15 minutes to form a uniform electrolyte, and then 0.15 g of an amide small-molecule gelling agent whose n and m were 12, x and z were both 1, and y was 1 was added to it. Seal the container, heat the mixture in the container to 130°C, stir the system uniformly with magnetic stirring, and keep it for 30 minutes. After the mixed system is cooled to room temperature, the quasi-solid gel electrolyte Gel1 can be obtained.

[0089] Using the electrochemical workstation to do cyclic voltammetry test, get the I of quasi-solid gel electrolyte Gel1 3 - The steady-s...

Embodiment 3

[0092] In a glove box filled with high-purity nitrogen, weigh 0.028 g, 0.053 g, 1.8 g, 0.14 g, and 0.57 g of lithium iodide, iodine, 3-methoxypropionitrile, N-methylbenzimidazole, 1 , 2-Dimethyl-3-propylimidazolium iodide. Place the weighed lithium iodide, iodine, 3-methoxypropionitrile, N-methylbenzimidazole, and 1,2-dimethyl-3-propylimidazole iodine in a sealable clean container, Ultrasonic dispersion was performed for 15 minutes to form a uniform electrolyte, and then 0.15 g of an amide small-molecule gelling agent whose n and m were both 12, x and z were both 1, and y was 2 was added to it. Seal the container, heat the mixture in the container to 130°C, stir the system uniformly with magnetic stirring, and keep it for 30 minutes. After the mixed system is cooled to room temperature, the quasi-solid gel electrolyte Gel2 can be obtained.

[0093] Using electrochemical workstation to do cyclic voltammetry test, get the I of quasi-solid gel electrolyte Gel2 3 - The steady-...

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Abstract

The invention discloses a quasi-solid electrolyte. The quasi-solid electrolyte is characterized by being prepared through gelatinizing a liquid electrolyte in a manner of introducing at least one amide organic micromolecular gelatinizer of a specific structure into the liquid electrolyte, wherein the amide organic micromolecular gelatinizer is prepared through the chemical reaction between acyl chloride and amine or an amine derivative or between the acyl chloride and an ammonium salt or ammonium salt derivative. The electrolyte can be applied to the fields of dye-sensitized solar cells, quantum-dot solar cells and the like, the problem that liquid-electrolyte cells are difficult in seal and easy in leakage is solved, and the long-term stability of the solar cells can be improved effectively.

Description

technical field [0001] The invention belongs to the interdisciplinary field of chemistry, chemical industry, material and physical technology, and relates to a quasi-solid electrolyte material and its application which can be used in the fields of dye-sensitized solar cells and quantum dot solar cells, especially a quasi-solid electrolyte and its application. Applications in dye-sensitized solar cells and quantum dot solar cells. Background technique [0002] Dye-sensitized solar (DSC) cells have attracted widespread attention due to their low cost and high efficiency. Electrolyte, as an important part of it, affects performance such as battery efficiency and stability. [0003] Liquid electrolytes are widely used due to their fast diffusion rate, good wettability, easy design and adjustment of composition, and high photoelectric conversion efficiency. According to the composition properties of electrolytes, liquid electrolytes can be divided into organic solvent electroly...

Claims

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Application Information

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IPC IPC(8): H01G9/022H01G9/20
CPCY02E10/542
Inventor 霍志鹏桃李戴松元
Owner INST OF PLASMA PHYSICS CHINESE ACAD OF SCI
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