Carbon black polymer combined counter electrode of dye-sensitized nano crystal solar battery and preparation method thereof

A technology for solar cells and dye sensitization, applied in the field of preparation of the pair of electrodes, can solve problems such as low electrocatalytic activity, and achieve the effects of broad application prospects, easy control, and easy bending

Inactive Publication Date: 2014-01-08
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current carbon counter electrode is prepared by high-temperature sintering, which is only suitable for glass substrates, not suitable for dye-sensitized solar cells with flexible substrates, and has the disadvantage of low intrinsic electrocatalytic activity.

Method used

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  • Carbon black polymer combined counter electrode of dye-sensitized nano crystal solar battery and preparation method thereof
  • Carbon black polymer combined counter electrode of dye-sensitized nano crystal solar battery and preparation method thereof
  • Carbon black polymer combined counter electrode of dye-sensitized nano crystal solar battery and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 1) Mix propylene carbonate (PC) and ethylene glycol dimethyl ether (DME) in a volume ratio of 7:3, and weigh 6g in total; add 0.05g polyoxyethylene (PEO), 0.05g polytetrafluoroethylene Vinyl hexafluoropropylene fluoride (P(VDF~HFP)); 80°C water bath (2 hours), until completely dissolved;

[0033] 2) add carbon black 0.04g wherein again, and silane coupling agent WD50 (H 2 NCH 2 CH 2 CH 2 Si(OC 2 h 5 ) 3 ) 0.1g, as an adhesive, magnetically stirred for 12h, and configured into carbon slurry;

[0034] 3) Coating on the substrate conductive glass by knife coating method, and heat-treating in a drying oven at 100°C for 12 hours, a composite carbon counter electrode with a film thickness of 13.70 μm and a sheet resistance of 551.8Ω / □ can be obtained.

[0035] The composite carbon counter electrode prepared above is used as the counter electrode of the dye-sensitized nanocrystalline solar cell, and the short-circuit current of the assembled battery is 9.83mA / cm 2 , th...

Embodiment 2

[0037] 1) Mix propylene carbonate (PC) and ethylene glycol dimethyl ether (DME) in a volume ratio of 7:3, and weigh 6g in total; add 0.05g polyoxyethylene (PEO), 0.05g polytetrafluoroethylene Vinyl hexafluoropropylene fluoride (P(VDF~HFP)); 80°C water bath (2 hours), until completely dissolved;

[0038] 2) add carbon black 0.07g wherein again, and silane coupling agent WD50 (H 2 NCH 2 CH 2 CH 2 Si(OC 2 h 5 ) 3 ) 0.1g, as an adhesive, magnetically stirred for 12h, and configured into carbon slurry;

[0039] 3) Coating on the substrate conductive glass by doctor blade method, heat treatment in a drying oven at 100°C for 12 hours, a composite carbon counter electrode with a film thickness of 16.79 μm and a sheet resistance of 166.9Ω / □ can be obtained.

[0040] The composite carbon counter electrode prepared above is used as the counter electrode of the dye-sensitized nanocrystalline solar cell, and the short-circuit current of the assembled battery is 9.51mA / cm 2 , the op...

Embodiment 3

[0042] 1) Mix propylene carbonate (PC) and ethylene glycol dimethyl ether (DME) in a volume ratio of 7:3, and weigh 6g in total; add 0.05g polyoxyethylene (PEO), 0.05g polytetrafluoroethylene Vinyl hexafluoropropylene fluoride (P(VDF~HFP)); 80°C water bath (2 hours), until completely dissolved;

[0043] 2) add carbon black 0.10g wherein again, and silane coupling agent WD50 (H 2 NCH 2 CH 2 CH 2 Si(OC 2 h 5 ) 3 ) 0.1g, as an adhesive, magnetically stirred for 12h, and configured into carbon slurry;

[0044] 3) Coating on the substrate conductive glass by knife coating method, and heat-treating in a drying oven at 100°C for 12 hours, a composite carbon counter electrode with a film thickness of 17.28 μm and a sheet resistance of 136.6Ω / □ can be obtained.

[0045] The composite carbon counter electrode prepared above is used as the counter electrode of the dye-sensitized nanocrystalline solar cell, and the short-circuit current of the assembled battery is 10.94mA / cm 2 , t...

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Abstract

The invention provides a carbon black polymer combined counter electrode of a dye-sensitized nano crystal solar battery. The carbon black polymer combined counter electrode of dye-sensitized nano crystal solar battery comprises a base material and a composite material which is covered on the base material, wherein the composite material comprises a mixture A, polyoxyethylene, polyfluortetraethylene-P-hexafluoropropylene, carbon black and a silane coupling agent, wherein the mixture A is prepared by mixing propylene carbonate and ethylene glycol dimethyl ether. The invention further discloses a preparation method of the counter electrode. Compared with prior art, the invention has the advantages that carbon materials with high catalytic activity and low price are used for replacing platinum, so that production cost of a battery is lowered, and photoelectric conversion efficiency equivalent to that of a platinum counter electrode can be obtained.

Description

technical field [0001] The invention relates to a solar battery counter electrode, and the invention also relates to a preparation method of the counter electrode. Background technique [0002] Dye-sensitized nanocrystalline solar cells have attracted widespread attention from all over the world due to their simple manufacturing process, low cost, and high photoelectric conversion efficiency. The counter electrode is an important part of the dye-sensitized nanocrystalline solar cell, and its performance directly affects the photoelectric conversion efficiency of the cell. The oxidation-reduction reaction improves the electron transmission efficiency, and also improves the light utilization rate of the dye-sensitized nanocrystalline solar cell. [0003] The traditional counter electrode is a platinum counter electrode. Although the platinum counter electrode has a good catalytic effect, platinum metal is very expensive. In addition, its preparation requires high temperature ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/46H01L51/48H01G9/042H01G9/20H01M14/00
CPCY02E10/542Y02E10/549
Inventor 诸跃进张雪妮张京王培卿崔艳峥孙强郑君冯姜伟
Owner NINGBO UNIV
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