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Gel electrolyte and preparation method thereof, dye-sensitized battery

A dye-sensitized battery and gel electrolyte technology, which is applied in the field of solar cells, can solve the problems of volatile electrolyte, unstable properties, and low electrical conductivity, and achieve the effects of stable properties, large contact area, and high electrical conductivity.

Active Publication Date: 2017-02-08
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of the existing electrolytes for dye-sensitized batteries that are volatile, unstable or have low conductivity, and provide a gel electrolyte with high conductivity, stable properties and low volatility

Method used

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  • Gel electrolyte and preparation method thereof, dye-sensitized battery

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Embodiment 1

[0028] This embodiment provides a gel electrolyte and a preparation method thereof.

[0029] The preparation method of the organic conductive film layer comprises the following steps:

[0030] 1) The step of dissolving the solute in the solvent

[0031] The mass ratio of elemental iodine and potassium iodide is 1: 1 to get elemental iodine and potassium iodide as solute, be dissolved in the polycarbonate as solvent and make solution; Wherein, in the solution, I 3 - The concentration of the substance is 0.1mol / L, I - The concentration of the substance is 0.01mol / L.

[0032] 2) Mixing step

[0033] Stir the solution described in step 1) at 80°C for 12 hours, and add gelling agent polyethylene glycol 5000 to form a viscous mixture while stirring; wherein, the mass ratio of solvent to gelling agent is 1:0.25.

[0034] 3) Reaction steps

[0035] Add the viscous mixture described in step 2) into the reactor, and react for 5 hours at 200°C to prepare a gel electrolyte.

[0036...

Embodiment 2

[0039] This embodiment provides a gel electrolyte and a preparation method thereof.

[0040] The preparation method of the organic conductive film layer comprises the following steps:

[0041] 1) The step of dissolving the solute in the solvent

[0042] The mass ratio of elemental iodine and potassium iodide is 1: 10 to get elemental iodine and potassium iodide as solute, be dissolved in the polycarbonate as solvent and make solution; Wherein, in the solution, I 3 - The amount concentration of the substance of is 0.01mol / L, and the amount concentration of the substance of I- is 0.1mol / L.

[0043] 2) Mixing step

[0044] The solution described in step 1) was stirred at 120°C for 20 hours, and a gelling agent polyethylene glycol 10,000 was added while stirring to form a viscous mixture; wherein, the mass ratio of the solvent to the gelling agent was 1:0.5.

[0045] 3) Reaction steps

[0046] Add the viscous mixture described in step 2) into the reactor, and react at 150°C f...

Embodiment 3

[0048] This embodiment provides a gel electrolyte and a preparation method thereof.

[0049] The preparation method of the organic conductive film layer comprises the following steps:

[0050] 1) The step of dissolving the solute in the solvent

[0051] The mass ratio of elemental iodine and potassium iodide is 1: 5 to get elemental iodine and potassium iodide as solute, be dissolved in the polycarbonate as solvent and make solution; Wherein, in the solution, I 3 - The concentration of the substance is 0.05mol / L, I - The concentration of the substance is 0.07mol / L.

[0052] 2) Mixing step

[0053] Stir the solution described in step 1) at 100°C for 36 hours, and add gelling agent polyethylene glycol 20000 while stirring to form a viscous mixture; wherein, the mass ratio of solvent to gelling agent is 1:0.8.

[0054] 3) Reaction steps

[0055] Add the viscous mixture described in step 2) into the reactor, and react at 180°C for 10 hours to prepare a gel electrolyte.

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Abstract

The invention provides a gel electrolyte and a preparation method thereof, and a dye sensitization cell is included. The invention belongs to the technical field of solar batteries and can solve the problems that an electrolyte used by the conventional dye sensitization batteries is likely to volatile, is instable in property and low in conductive efficiency. The gel electrolyte of the invention comprises polycarbonate and gellant which are used as a solvent. An organic conductive film of the invention is characterized by being high in conductivity and stable in property. The organic conductive film of the invention is also characterized by facilitating the injection of a dye sensitization battery solution in a liquid state at a high temperature and the packaging at a normal temperature.

Description

technical field [0001] The invention belongs to the technical field of solar cells, and in particular relates to a gel electrolyte, a preparation method thereof, and a dye-sensitized cell containing the gel electrolyte. Background technique [0002] Due to the increasingly serious global energy crisis, human beings are eager to find a sustainable green energy source. As an inexhaustible natural energy source, solar energy has become one of the important choices for people. As a new type of battery, dye-sensitized batteries have the advantages of low cost, green environmental protection, and simple production compared with traditional batteries. [0003] Dye-sensitized cells are mainly composed of the following parts: conductive base layer, nano-TiO2 film layer, dye-sensitized layer, electrolyte and photocathode. Due to the use of liquid electrolyte in conventional dye-sensitized batteries, there are problems such as poor stability, difficult packaging, and easy leakage and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G9/025H01G9/028H01G9/20
CPCY02E10/542Y02P70/50
Inventor 卢磊曾绍忠焦方方陈效华
Owner CHERY AUTOMOBILE CO LTD
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