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Dye-sensitized solar cell ion electrolyte

A solar cell, dye sensitization technology, applied in the field of battery electrolyte and its preparation, can solve the problems of difficult packaging, easy volatilization and easy leakage of the electrolyte, and achieve the effect of overcoming volatilization and high photoelectric conversion efficiency

Inactive Publication Date: 2014-10-29
HEILONGJIANG ZHONGTIAN HENGJI REAL ESTATE DEV GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the disadvantages and deficiencies of the dye-sensitized battery electrolyte in the prior art, such as easy volatilization, easy leakage, difficult pack

Method used

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  • Dye-sensitized solar cell ion electrolyte
  • Dye-sensitized solar cell ion electrolyte

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The components contained in the electrolyte in this example are: 1-ethyl-3-methylimidazolium iodine (denoted as EMII), 1-allyl-3-methylimidazolium iodine (denoted as AMII), iodine, 4 - tert-butylpyridine, guanidinium thiocyanate, lithium iodide, the solvent adopts the solvent that acetonitrile / valeronitrile is mixed by volume percentage 85 / 15.

[0040] The dosage of each component used in each group of experiments is respectively:

[0041] 1. 0.2976g of 1-ethyl-3-methylimidazolium iodine, 0.3126g of 1-allyl-3-methylimidazolium iodine, 0.0397g of iodine, 0.1690g of 4-tert-butylpyridine, and 0.0074g of guanidine thiocyanate , lithium iodide 0.2348g. Acetonitrile / valeronitrile (85 / 15) 0.1ml. See attached table 1 for photoelectric conversion efficiency.

[0042] 2. 0.2976g of 1-ethyl-3-methylimidazolium iodine, 0.3126g of 1-allyl-3-methylimidazolium iodine, 0.0397g of iodine, 0.1690g of 4-tert-butylpyridine, and 0.0074g of guanidine thiocyanate , lithium iodide 0.2348...

Embodiment 2

[0048] The components contained in the electrolyte in this example are: 1-ethyl-3-methylimidazolium iodine (denoted as EMII), 1-allyl-3-methylimidazolium iodine (denoted as AMII), iodine, 4 - tert-butylpyridine, guanidinium thiocyanate, lithium iodide, the solvent adopts the solvent that acetonitrile / valeronitrile is mixed by volume percentage 85 / 15.

[0049] The dosage of each component used in each group of experiments is respectively:

[0050] 1. 0.2387g of 1-ethyl-3-methylimidazolium iodine, 0.0076g of iodine, 0.1352g of 4-tert-butylpyridine, 0.0118g of guanidine thiocyanate, and 0.0094g of lithium iodide. See attached table 2 for photoelectric conversion efficiency.

[0051] 2. 0.2387g of 1-ethyl-3-methylimidazolium iodine, 0.0076g of iodine, 0.1352g of 4-tert-butylpyridine, 0.0118g of guanidine thiocyanate, and 0.0094g of lithium iodide. Acetonitrile / valeronitrile (85 / 15) 0.5ml. See attached table 2 for photoelectric conversion efficiency.

[0052] 3. 0.1694g of 1-et...

Embodiment 3

[0059] The components contained in the electrolyte in this group of examples are: 1-ethyl-3-methylimidazolium iodine (denoted as EMII), 1-allyl-3-methylimidazolium iodine (denoted as AMII), iodine, 4-tert-butylpyridine, guanidinium thiocyanate, lithium iodide, the solvent is acetonitrile / valeronitrile mixed solvent of 85 / 15 by volume.

[0060] The dosage of each component used in each group of experiments is respectively:

[0061] 1. 0.2501g of 1-allyl-3-methylimidazolium iodine, 0.0076g of iodine, 0.1352g of 4-tert-butylpyridine, 0.0118g of guanidine thiocyanate, and 0.0056g of lithium iodide. See attached table 3 for photoelectric conversion efficiency.

[0062] 2. 0.2501 g of 1-allyl-3-methylimidazolium iodine, 0.0076 g of iodine, 0.1352 g of 4-tert-butylpyridine, 0.0118 g of guanidine thiocyanate, and 0.0056 g of lithium iodide. Acetonitrile / valeronitrile (85 / 15) 0.2ml. See attached table 3 for photoelectric conversion efficiency.

[0063] 3. 0.2501 g of 1-allyl-3-m...

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Abstract

The invention relates to a dye-sensitized solar cell ion electrolyte and a preparation method thereof, and specifically relates to the dye-sensitized solar cell ion electrolyte especially suitable for a dye-sensitized solar cell. The dye-sensitized solar cell ion electrolyte comprises ionic liquid, an iodine element, 4-tert-butylpyridine, guanidine thiocyanate, lithium iodide and solvent. The dye-sensitized solar cell ion electrolyte is characterized in that the ionic liquid is one of or the mixture of 1-ethyl-3 methylimidazole iodide and 1-allyl-3- methylimidazole iodide; and the solvent adopts one of acetonitrile or valeronitrile, or the mixture of the acetonitrile and the valeronitrile. Compared with the prior art, the dye-sensitized solar cell ion electrolyte can effectively overcome the disadvantages of easy volatilization, easy leaking, difficult packaging, and poor stability and the like existing in a conventional dye-sensitized solar cell ion electrolyte; and the dye-sensitized solar cell ion electrolyte has the obvious advantages of safety and environmental protection, and high photoelectric conversion efficiency and the like.

Description

technical field [0001] The invention relates to a battery electrolyte and a preparation method thereof, in particular to an ion electrolyte for a dye-sensitized solar cell that is particularly suitable for a dye-sensitized solar cell. Background technique [0002] Dye-sensitized solar cell (DSSC) is a new type of solar cell, which has won widespread attention due to its advantages of high efficiency, low cost, relatively simple manufacturing process and technology. The main structure of dye-sensitized solar cells is composed of several parts such as nanoporous semiconductor film, dye sensitizer, redox electrolyte, counter electrode and conductive glass substrate. Among them, the electrolyte plays a vital role in DSSC, which is an important part of maintaining the battery work, and the regeneration of the dye is mainly completed by being reduced by it. At present, dye-sensitized solar cells are based on organic solvent electrolytes containing inorganic or organic iodine salt...

Claims

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Application Information

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IPC IPC(8): H01G9/20
CPCY02E10/542
Inventor 刘荣刚戚明颖刘爱云蒋庭玉
Owner HEILONGJIANG ZHONGTIAN HENGJI REAL ESTATE DEV GRP
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