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Quasi-solid electrolyte for dye-sensitized solar cells and preparation method thereof

A technology for solar cells and dye sensitization, which is applied in the field of quasi-solid-state electrolytes for dye-sensitized solar cells and its preparation, can solve the problems of high ion conductivity and unavoidable volatilization of ethylene carbonate, and achieve high ion conductivity and equipment The effect of low dependence and high cycle life

Active Publication Date: 2021-11-05
JIANGSU RIYU PHOTOVOTTAIC NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Chinese invention patent CN 101205283A discloses a gel-type electrolyte and its preparation method. The electrolyte is composed of elemental iodine, polymethacrylate ionic liquid, polyacrylonitrile, ethylene carbonate, propylene carbonate and SiO2; the electrolyte is prepared The method is simple, the ionic conductivity is high, and the introduction of the polymer makes the electrolyte form a gel, which inhibits the leakage of organic solvents such as ethylene carbonate and propylene carbonate to a certain extent, but the leakage of ethylene carbonate and propylene carbonate is still inevitable. volatilization, resulting in battery performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A quasi-solid-state electrolyte for a dye-sensitized solar cell, comprising the following components in parts by weight: 20 parts of boroxyalkyne organic ions; 15 parts of 2-(dimethylamino)acetonitrile iodide; quinoline iodoethane 15 parts; 5 parts of iodine; 5 parts of methylbenzimidazole; 6-deoxy-6-iodo-1,2:3,4-di-o-isopropylidene-α-d-galactopyranoside 10 parts of ionized modified fullerene.

[0029] The preparation method of the boroxine organic ion comprises the following steps:

[0030] Ⅰ Add 10 g of tris(P-chlorophenyl) boroxyne, 10 g of 4-dimethylaminophenol into 100 g of acetonitrile, and add 2 g of CuI, 2 g of dimethylethylenediamine, and 3 g of cesium carbonate to it at 90 The reaction was stirred at ℃ for 6 hours, and then the solvent was removed by rotary evaporation, and dichloromethane and water were sequentially added in a mass ratio of 1:3, the organic phase was taken, and the dichloromethane was removed by rotary evaporation to obtain an intermediate; ...

Embodiment 2

[0035] A quasi-solid-state electrolyte for a dye-sensitized solar cell, comprising the following components in parts by weight: 23 parts of boroxyalkyne organic ions; 16 parts of 2-(dimethylamino)acetonitrile iodide; quinoline iodoethane 16 parts; 6 parts of iodine; 6 parts of butylbenzimidazole; 6-deoxy-6-iodo-1,2:3,4-di-o-isopropylidene-α-d-galactopyranoside 11 parts of ionized modified fullerene.

[0036] The preparation method of the boroxine organic ion comprises the following steps:

[0037] ⅠAdd 10g of tris(P-chlorophenyl)boroxine and 10g of 4-dimethylaminophenol to 110g of N,N-dimethylformamide, and add 2g of CuI and dimethylethylenediamine to it 2g, cesium carbonate 3g, stirred and reacted at 92°C for 6.5 hours, then removed the solvent by rotary evaporation, and added dichloromethane and water successively at a mass ratio of 1:3, took the organic phase, and removed the dichloromethane by rotary evaporation to obtain intermediate body;

[0038] II Dissolve 13.1 g o...

Embodiment 3

[0042] A quasi-solid-state electrolyte for a dye-sensitized solar cell, comprising the following components in parts by weight: 26 parts of boroxyalkyne organic ions; 17 parts of 2-(dimethylamino)acetonitrile iodide; quinoline iodoethane 18 parts; 7 parts of iodine; 7 parts of tert-butylpyridine; 6-deoxy-6-iodo-1,2:3,4-di-o-isopropylidene-α-d-galactopyranoside ion 13 parts of chemically modified fullerene.

[0043] The preparation method of the boroxine organic ion comprises the following steps:

[0044] Ⅰ Add 10 g of tris(P-chlorophenyl) boroxyne, 10 g of 4-dimethylaminophenol to 140 g of toluene, and add 2 g of CuI, 2 g of dimethylethylenediamine, and 3 g of cesium carbonate to it, at 96 The reaction was stirred at ℃ for 7 hours, and then the solvent was removed by rotary evaporation, and dichloromethane and water were sequentially added in a mass ratio of 1:3, the organic phase was taken, and the dichloromethane was removed by rotary evaporation to obtain an intermediate; ...

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Abstract

The invention discloses a quasi-solid electrolyte for a dye-sensitized solar cell, which comprises the following components in parts by weight: 20-30 parts of boroxyalkyne organic ions; 15-parts of 2-(dimethylamino)acetonitrile iodide 20 parts; quinoline iodoethane 15‑20 parts; iodine simple substance 5‑10 parts; additive 5‑10 parts; 6‑deoxy‑6‑iodine‑1,2:3,4‑di‑o‑isopropylidene ‑α‑d‑galactopyranoside ionized modified fullerene 10‑15 parts. The invention also discloses a preparation method of a quasi-solid electrolyte for a dye-sensitized solar cell and a dye-sensitized solar cell using the electrolyte. The quasi-solid electrolyte for dye-sensitized solar cells disclosed by the invention has the advantages of higher electrical conductivity, better stability, easier packaging, and is more conducive to the preparation of dye-sensitized solar cells with high photoelectric conversion efficiency and cycle life.

Description

technical field [0001] The invention belongs to the technical field of solar cells, and relates to a dye-sensitized solar cell element, in particular to a quasi-solid electrolyte for a dye-sensitized solar cell and a preparation method thereof. Background technique [0002] With the rapid development of the economy and the advancement of the global industrialization process, environmental and energy problems are becoming more and more serious. Seeking new energy to replace traditional energy is an effective way to solve these problems. The development and utilization of new energy is inseparable from the use of new energy devices. Solar cells are a typical representative of this type of new energy devices, which can directly use solar energy to convert solar energy, a clean and renewable energy, into electrical energy. Solar cells include different types according to different working principles. Among them, dye-sensitized solar cells have high efficiency, low cost, low cost...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G9/20H01G9/022
CPCH01G9/2013Y02E10/542
Inventor 张礼国
Owner JIANGSU RIYU PHOTOVOTTAIC NEW MATERIAL TECH CO LTD
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