Electrolyte for dye-sensitized solar cell and preparation method thereof

A technology for solar cells and dye sensitization, which is applied in the field of electrolytes for dye-sensitized solar cells, can solve the problems of increased packaging difficulty, back electrode damage, and unsuitability for large-scale production, and meets industrial production, low volatility, good The effect of long-term stability

Inactive Publication Date: 2009-11-04
IRICO
View PDF0 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problems of this method are: the punching process is easy to cause damage to the back electrode coated with the metal layer, thereby affecting the performance of the battery; the cycle process will cause a considerable amount of waste of electrolyte; the battery needs to be packaged twice, which increases the difficulty of packa

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A preparation method for an electrolyte for a dye-sensitized solar cell, comprising the following steps:

[0033] (1) Mix 1-ethyl-3-methylimidazole bistrifluoromethanesulfonimide salt and 1-propyl-3-methylimidazole iodide salt in a volume ratio of 1:1 to obtain liquid imidazole Salt ionic liquid.

[0034] (2) Add elemental iodine, lithium iodide and 4-tert-butylpyridine to the ionic liquid at a ratio of 1:10:0.5 in a molar ratio of iodine: iodide anion: 4-tert-butylpyridine, and stir at room temperature for 30 minutes , to obtain the mixed solution A component after completely dissolving; the concentration of iodine simple substance in the mixed solution A component is 0.01mol / L.

[0035] (3) Then add component B to component A according to the mass ratio of component A: component B is 17:2, and ultrasonically treat for 0.5 hours until the system is uniform to obtain a mixture; component B is nano-titanium dioxide.

[0036] (4) Add component C to the mixture obtained ...

Embodiment 2

[0046] A preparation method for an electrolyte for a dye-sensitized solar cell, comprising the following steps:

[0047](1) Iodine element and N-methyl ratio benzimidazole are added to 1-propyl-3-methylimidazole iodized salt solution in a ratio of 1:0.3 by iodine element: N-methyl ratio benzimidazole molar ratio , stirred at room temperature for 20 minutes, until completely dissolved to obtain component A of the mixed solution; the concentration of elemental iodine in the component A of the mixed solution was 0.1mol / L;

[0048] (2) Add component B to component A in the ratio of 10:1 by mass ratio of component A: component B, and ultrasonically treat for 1 hour until the system is uniform to obtain a mixture; the component B is nano-dioxide silicon.

[0049] (3) Add component C to the mixture obtained in step (2) according to the mass ratio of component A: component C in a ratio of 10:1, then stir at 80°C for 2 hours, and cool naturally to room temperature to obtain the obtain...

Embodiment 3

[0059] A preparation method for an electrolyte for a dye-sensitized solar cell, comprising the following steps:

[0060] (1) by elemental iodine: iodide negative ion: the mol ratio of guanidinium thiocyanate is that the mol ratio of elemental iodine, mass ratio is that 1: 1 mixture of potassium iodide and sodium iodide, guanidinium thiocyanate are added to In the 1-ethyl-3-methylimidazole thiocyanate solution, stir at room temperature for 60 minutes until completely dissolved to obtain component A of the mixed solution; the concentration of iodine in component A of the mixed solution is 0.05mol / L ;

[0061] (3) Add component B and component C to component A at the same time according to the mass ratio of component A: component B: component C at the ratio of 13:1:2, and then stir at 60°C for 2 hours , naturally cooled to room temperature to obtain the required electrolyte; the B component is polyethylene glycol, and the C component is triton.

[0062] Obtain a kind of electro...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to electrolyte for a cell, in particular to electrolyte for a dye-sensitized solar cell. The electrolyte comprises a composition A, a composition B and a composition C, wherein the mass ratio of the composition A to the composition B to the composition C is 2-17:1-2:1-2; the composition A is a mixed solution formed by a redox couple, an additive which is chelated with a photo anode, and an ionic liquid; the redox couple comprises elementary iodine; the ionic liquid is an imidazole salt ionic liquid which is in the liquid state at room temperature; the molar ratio of the elementary iodine to the additive is 1:0.2-2; the concentration of the elementary iodine in the composition A of the mixed solution is between 0.01 and 1 mol/L; the composition B is an adhesive for increasing the viscosity of a system; and the composition C is a viscosity regulator for regulating the leveling property of the system under the condition of silk-screen printing. The invention has the advantages that the electrolyte system has small volatility and good long-term stability, and can perform silk-screen printing and meet the requirements of industrialized production.

Description

1. Technical field: [0001] The invention relates to a battery electrolyte, in particular to an electrolyte for a dye-sensitized solar battery. 2. Background technology: [0002] With the increasing severity of the global energy crisis, people are eager to find a sustainable clean energy source. Solar energy, as an inexhaustible natural energy source, has increasingly attracted the attention of countries all over the world. Among them, the material-sensitized solar cell (DSC cell) is considered to be the representative of the third-generation solar cell because of its low cost and wide application. [0003] Electrolyte is one of the core parts of dye-sensitized solar cells, and the composition of the electrolyte greatly affects the photoelectric performance and long-term stability of the cells. Traditional organic liquid electrolytes are highly volatile, and batteries prepared with them are difficult to seal. Long-term use will cause problems such as electrolyte leakage and...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H01G9/20H01M14/00H01L51/42H01L51/48
CPCY02E10/542Y02E10/549Y02P70/50
Inventor 李德娜汪志华
Owner IRICO
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap