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Method for preparing chemical crosslink gel lattice polymer electrolyte

A gel network and chemical cross-linking technology, applied in electrolytic capacitors, circuits, capacitors, etc., can solve the problems of low photoelectric conversion efficiency of dye-sensitized solar cells and hinder gel formation, and achieve high photoelectric conversion efficiency and enhanced phase capacitive, avoiding the effect of phase separation

Inactive Publication Date: 2007-08-29
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Hayase (Japan) etc. use poly-4-vinylpyridine as a polymer and halogenated alkanes as a cross-linking agent to prepare a solid-state battery composed of a gel polymer electrolyte. Although the thermal stability of the battery is improved, the cross-linking reaction can also be used in It is carried out in the presence of iodine, but the crosslinking agent used in the electrolyte containing organic solvents such as ethylene carbonate and propylene carbonate appears phase separation, and the addition of additives such as lithium iodide and 4-tert-butylpyridine will hinder Gel formation, assembly into dye-sensitized solar cells with low photoelectric conversion efficiency

Method used

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  • Method for preparing chemical crosslink gel lattice polymer electrolyte
  • Method for preparing chemical crosslink gel lattice polymer electrolyte
  • Method for preparing chemical crosslink gel lattice polymer electrolyte

Examples

Experimental program
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Embodiment 1

[0034] Add 0.0648g of potassium iodide and 0.0099g of iodine into 1.0000g of propylene carbonate to make a liquid electrolyte. First add 0.0300g of polymer copolymer of 4-vinylpyridine and acrylonitrile, then add 0.0150g of diiodohexane after dissolving, stir evenly, and apply on the dye-sensitized TiO 2 The electrode surface of the nanocrystalline porous film is assembled into a battery by pressing the counter electrode of a Pt sheet on it, and then placed in a 75°C oven for heating and curing for 2 hours to obtain the on-site chemical crosslinked gel network polymer electrolyte of the present invention. Dye-sensitized TiO 2 Nanocrystalline thin film batteries.

Embodiment 2

[0036] Except changing 1.0000g propylene carbonate in step (1) into a mixture of 1.0000g ethylene carbonate and propylene carbonate (volume ratio is 5: 5), other steps and process conditions are the same as in Example 1, to obtain the present invention Dye-sensitized TiO assembled from in-situ chemically cross-linked gel network polymer electrolyte 2 Nanocrystalline thin film batteries.

Embodiment 3

[0038] Except that the Pt sheet counter electrode in step (4) is changed to a platinum-loaded counter electrode, other steps and process conditions are the same as in Example 2, and the dye assembled from the on-site chemical cross-linked gel network polymer electrolyte of the present invention is obtained. Sensitized TiO 2 Nanocrystalline thin film batteries.

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Abstract

The invention relates to a manufacture method for electrolyte of dye sensitization TiO2 nanometer crystal porous membrane solar cell. It includes the following steps: mixing organic solvent containing inorganic iodine salt, iodine, and additive, or iron liquid electrolyte with 4-vinyl pyridine and the high molecule copolymer of acrylonitrile and crosslinking agent; directly coating onto TiO2 nanometer crystal film electrode surface; packaging with Pt sheet counter electrode or platinum carrying counter electrode to form cell, taking cross linking solidifying reacting while heating, the product would be gained. The invention has simple method, low viscosity of electrolyte before solidification reaction, and is benefit for improving cell photoelectric conversion efficiency.

Description

technical field [0001] The invention belongs to dye-sensitized TiO 2 The technical field of electrolyte preparation for nanocrystalline porous thin-film solar cells, particularly relates to a method for preparing a chemically cross-linked gel network polymer electrolyte. Background technique [0002] Dye-sensitized TiO 2 Nanocrystalline porous thin film solar cell is a new type of solar cell with high efficiency, low price and no pollution to the environment. This type of battery is generally used to contain I - / I 3 - A liquid electrolyte composed of redox couple, inorganic iodine salt, iodine and organic solvent. However, this kind of electrolyte is easy to leak, and the organic solvent is easy to volatilize, which not only makes it difficult to seal the battery, but also reduces the battery performance and shortens the service life during long-term work. It is an inevitable trend to replace liquid electrolyte with solid electrolyte or electrolyte solidification, bec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L39/08C08J3/24C08K5/3432H01L31/04H01G9/035H01G9/20
CPCY02E10/542
Inventor 周晓文李敏玉林原李学萍冯树京方世璧肖绪瑞
Owner INST OF CHEM CHINESE ACAD OF SCI
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