Preparation method of flexible carbon counter electrode of dye-sensitized solar cell, flexible carbon counter electrode and battery

A technology for solar cells and dye sensitization, applied in the field of dye-sensitized solar cells, can solve the problems of unfavorable improvement of the photoelectric performance of dye-sensitized solar cells, poor bonding force between a conductive film layer and a flexible conductive film, and it is difficult to realize the effective effect of the conductive film layer. connection and other issues to achieve the effect of improving photoelectric conversion efficiency, achieving effective connection and avoiding deformation

Active Publication Date: 2016-04-27
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the preparation process of the flexible carbon counter electrode, it is necessary to set a conductive film layer on the flexible conductive film of the conductive substrate. Since the maximum temperature that the flexible conductive film can withstand is low, continuing to heat up will cause the flexible conductive film to deform and age, so it is difficult to Realize the effective connection between the particles in the conductive film layer, and the bonding force between the conductive film layer and the flexible conductive film is poor, which is not conducive to the improvement of the photoelectric performance of the dye-sensitized solar cell

Method used

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  • Preparation method of flexible carbon counter electrode of dye-sensitized solar cell, flexible carbon counter electrode and battery
  • Preparation method of flexible carbon counter electrode of dye-sensitized solar cell, flexible carbon counter electrode and battery
  • Preparation method of flexible carbon counter electrode of dye-sensitized solar cell, flexible carbon counter electrode and battery

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Embodiment 1

[0029] This embodiment provides a method for preparing a flexible carbon counter electrode of a dye-sensitized solar cell, comprising the following steps:

[0030] The flexible conductive substrate is pretreated to remove organic and inorganic substances on the surface of the flexible conductive substrate. The pretreatment process may be: the flexible conductive substrate is ultrasonically cleaned with acetone, ethanol, and water for 30 minutes to remove oil stains and inorganic substances on the surface for use. Among them, the flexible conductive substrate is preferably ITO / PET.

[0031] The activated carbon is added into a ball mill for dry milling, the rotational speed of the ball mill is controlled to be 800 rpm, and the milling time is 30 hours to obtain activated carbon powder.

[0032] The powder material of active carbon is packed in the feeding tank of the spray gun that cold spraying method is used, the pressure of the gas that adjusts spraying in the cold spraying...

Embodiment 2

[0035] This embodiment provides a method for preparing a flexible carbon counter electrode of a dye-sensitized solar cell, comprising the following steps:

[0036] The flexible conductive substrate is pretreated to remove organic and inorganic substances on the surface of the flexible conductive substrate. The pretreatment process may be: the flexible conductive substrate is ultrasonically cleaned with acetone, ethanol, and water for 30 minutes to remove oil stains and inorganic substances on the surface for use. Among them, the flexible conductive substrate is preferably ITO / PEN.

[0037]Put the glassy carbon into a ball mill for dry grinding, control the ball milling speed to 1500 rpm, and the ball milling time to 25 hours to prepare glassy carbon powder.

[0038] The powder material of glassy carbon is packed in the feeding tank of the spray gun that cold spraying method is used, the pressure of the gas that adjusts spraying in the cold spraying method is 0.3MPa, and the s...

Embodiment 3

[0040] This embodiment provides a method for preparing a flexible carbon counter electrode of a dye-sensitized solar cell, comprising the following steps:

[0041] The flexible conductive substrate is pretreated to remove organic and inorganic substances on the surface of the flexible conductive substrate. The pretreatment process may be: the flexible conductive substrate is ultrasonically cleaned with acetone, ethanol, and water for 30 minutes to remove oil stains and inorganic substances on the surface for use. Among them, the flexible conductive substrate is preferably ITO / PET.

[0042] Weigh mesoporous carbon and microporous carbon respectively, mix mesoporous carbon and microporous carbon according to the mass ratio of 1:1, put them into a ball mill for dry milling, control the ball milling speed to 900 rpm, and ball milling time to 18 hours to obtain Mixed powder of mesoporous carbon and microporous carbon.

[0043] The mixed powder of mesoporous carbon and microporous...

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Abstract

The invention discloses a preparation method for a flexible carbon counter electrode of a dye-sensitized solar cell, the flexible carbon counter electrode and the cell. The preparation method for the flexible carbon counter electrode of the dye-sensitized solar cell comprises the following steps of using a cold spraying method to spray raw materials comprising carbon materials to a flexible conductive substrate, forming a conductive film layer comprising the carbon materials on the flexible conductive substrate, and obtaining the flexible carbon counter electrode. Materials on the surface of the conductive film layer of the flexible carbon counter electrode obtained through the preparation method for the flexible carbon counter electrode of the dye-sensitized solar cell are even in distribution, smooth and flat, and the film breakage phenomenon does not exist. In the process of preparation, due to the fact that the cold spraying method is used, the flexible carbon counter electrode with the conductive film layer comprising the carbon materials on the flexible conductive substrate can be prepared without the need of heating, deformation and ageing of the flexible conductive substrate can be avoided, thus, effective connection among particles in the conductive film layer on the flexible conductive substrate is achieved, binding force between the conductive film layer and the flexible conductive substrate is improved, and the photoelectric conversion efficiency of the dye-sensitized solar cell comprising the flexible carbon counter electrode is further improved.

Description

technical field [0001] The invention belongs to the technical field of dye-sensitized solar cells, and in particular relates to a method for preparing a flexible carbon counter electrode of a dye-sensitized solar cell, a flexible carbon counter electrode and a battery. Background technique [0002] In 1991, a research team led by Professor Greatzel of the Swiss Institute of Advanced Technology in Lausanne made nanoporous TiO 2 Applied to dye-sensitized solar cells (DSSCs), this research has made a breakthrough. Since Professor Gratzel in the laboratory small area (<0.2cm 2 ) cells have achieved a photoelectric conversion efficiency of 7.1%, dye-sensitized solar cells have attracted more and more scientists' attention. In 2004, the efficiency of small-area cells increased to 11.04%. At present, Sharp Corporation of Japan announced that the efficiency of small-area cells has reached 11.1%. . Due to the potential application prospects of dye-sensitized solar cells, many c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/48H01L51/44
CPCY02E10/549
Inventor 焦方方朱广燕卢磊陈效华
Owner CHERY AUTOMOBILE CO LTD
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