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Lead-free glass powder, lead-free glass powder slurry, large-area dye-sensitized solar cell as well as preparation method and application thereof

A lead-free glass powder and solar cell technology, applied in the field of solar cells, can solve the problems of packaging materials affecting battery life, easy precipitation of glass powder slurry, easy leakage of electrolyte, etc., to prevent agglomeration and precipitation, and reduce the number of holes , The effect of volatile removal

Inactive Publication Date: 2017-05-10
KUSN INNOVATION INST OF NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing packaging process is complicated, the more the battery cavity, the more holes are needed, the easier the electrolyte leaks, and the packaging material is easily corroded by the electrolyte and oxidized, which affects the battery life
[0004] The existing lead-free glass powder preparation process has problems such as high softening temperature, high melting temperature, complex raw materials, large particle size of glass powder, and the prepared glass powder slurry is prone to precipitation after being placed.

Method used

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  • Lead-free glass powder, lead-free glass powder slurry, large-area dye-sensitized solar cell as well as preparation method and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Such as figure 1 Shown, lead-free glass powder, including the following components: SiO 2 12%, B 2 o 3 6%, Bi 2 o 3 65%, ZnO5%, Al 2 o 3 5%, Na 2 O 1%, BaO 3% and CaO 3%.

[0053] The preparation method of the lead-free glass powder comprises the following steps: weighing each component of the lead-free glass powder according to the above weight, after mixing, smelting in a lifting furnace at 1300°C for 30 minutes to obtain molten glass, and then quenching the molten glass Finally, dry the small glass particles, and finally ball mill the small glass particles in a planetary high-energy ball mill with a ball-to-material ratio of 3:1 and a rotation speed of 450-500 rpm for 8-10 hours to obtain low-melting point glass powder. Then sieve to obtain ultra-fine glass powder with a particle size of glass powder below 5 μm. After testing, the softening point of the lead-free glass powder of the present invention is between 425°C and 480°C, and the coefficient of lin...

Embodiment 2

[0077] Such as figure 1 Shown, lead-free glass powder, including the following components: SiO 2 20%, B 2 o 3 15%, Bi 2 o 3 40%, ZnO10%, Al 2 o 3 10%, Na 2 O 2%, BaO 1%, and CaO 2%.

[0078] The preparation method of lead-free glass powder comprises the following steps: weighing each component of lead-free glass powder according to the above weight, after mixing, smelting in a lifting furnace at 1000°C for 10 minutes to obtain molten glass, and then quenching the molten glass Finally, dry the small glass particles, and finally ball mill the small glass particles in a planetary high-energy ball mill with a ball-to-material ratio of 3:1 and a rotation speed of 450 rpm for 10 hours to obtain low-melting point glass powder. Then sieve to obtain ultra-fine glass powder with a particle size of glass powder below 5 μm. After testing, the softening point of the lead-free glass powder of the present invention is between 425°C and 480°C, and the coefficient of linear expansi...

Embodiment 3

[0101] Such as figure 1 Shown, lead-free glass powder, including the following components: SiO 2 10%, B 2 o 3 5%, Bi 2 o 3 70%, ZnO1%, Ai 2 o 3 1%, Na 2 O 1%, BaO 5% and CaO 7%.

[0102] The preparation method of lead-free glass powder comprises the following steps: weighing each component of lead-free glass powder according to the above weight, after mixing, smelting in a lifting furnace at 1500°C for 20 minutes to obtain molten glass, and then quenching the molten glass Finally, dry the glass particles to obtain small glass particles, and finally ball mill the small glass particles in a planetary high-energy ball mill with a ball-to-material ratio of 3:1 and a rotation speed of 500 rpm for 8 hours to obtain low-melting point glass powder. Then sieve to obtain ultra-fine glass powder with a particle size of glass powder below 5 μm. After testing, the softening point of the lead-free glass powder of the present invention is between 425°C and 480°C, and the coeffic...

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Abstract

The invention discloses lead-free glass powder, lead-free glass powder slurry, a large-area dye-sensitized solar cell as well as a preparation method and application thereof. The lead-free glass powder comprises the following components: 10-20% of SiO2, 5-15% of B2O3, 40-70% of Bi2O3, 1-10% of ZnO, 1-10% of Al2O3, 0.5-5% of Na2O, 1-5% of BaO and 2-7% of CaO. The lead-free glass powder slurry comprises the following components: 70-80% of the lead-free glass powder, 15-25% of an organic carrier and 1-5% of additives. According to the formed dense glass corrosion-resistant protective layer, the corrosion resistance of a conductive silver grid can be improved; and moreover, due to the glass powder around the FTO conductive glass, a photo-anode and a counter electrode are sealed, and by virtue of a whole face printing manner, the quantity of holes is reduced, the packaging technology is simplified, leakage of electrolyte can be slowed down, and the service life of the cell is prolonged.

Description

technical field [0001] The invention relates to a lead-free glass powder, a lead-free glass powder slurry, a large-area dye-sensitized solar cell, a preparation method and application thereof, and belongs to the technical field of solar cells. Background technique [0002] At present, the energy shortage in the world, the solar cell as an inexhaustible energy source has attracted much attention. With the development of the market demand, the application field of the solar cell continues to develop. Dye-sensitized solar cells are rated as the third-generation solar cells. Dye-sensitized solar cells are mainly composed of conductive substrates, semiconductor electrodes, dye sensitizers, electrolyte solutions, and counter electrodes. They are a type of organic-inorganic composite photoelectrochemical solar cells. , as the area of ​​dye-sensitized solar cells increases, the requirements for packaging technology are further improved. The packaging resin used in general packaging ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C12/00C03C8/24H01G9/08H01G9/20
CPCY02E10/542C03C12/00C03C8/24H01G9/08H01G9/20
Inventor 杜文召文贵华刘建国吴聪萍邹志刚
Owner KUSN INNOVATION INST OF NANJING UNIV
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