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Novel lead-free sliver slurry for high-efficiency crystalline silicon solar battery as well as preparation and application thereof

A technology of solar cells and crystalline silicon, applied in the manufacture of cables/conductors, conductive materials dispersed in non-conductive inorganic materials, circuits, etc., can solve the problems of high cost, difficulty in realizing high-efficiency batteries and low cost, and improve conversion efficiency , Simplify the process and reduce the manufacturing cost

Active Publication Date: 2013-03-06
SHANGHAI BONA ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cost of this process is high, and it is difficult to achieve the low-cost requirements of high-efficiency batteries

Method used

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  • Novel lead-free sliver slurry for high-efficiency crystalline silicon solar battery as well as preparation and application thereof
  • Novel lead-free sliver slurry for high-efficiency crystalline silicon solar battery as well as preparation and application thereof
  • Novel lead-free sliver slurry for high-efficiency crystalline silicon solar battery as well as preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-6

[0053] Raw materials: select raw materials according to Table 1. Examples 1-6 are respectively added with TeO with different compositions and particle sizes listed in Table 1 2 -Bi 2 O 3 -Sb 2 O 3 -MO (M=Zn, Mg, Ba, Ca) glass powder

[0054] aTeO 2 -b(Bi 2 O 3 ,Sb 2 O 3 )-cMO glass preparation method:

[0055] First, mix and grind the raw materials in accordance with Table 1 thoroughly, then add the mixed raw materials into the corundum crucible, heat and melt at 900~1300℃ for 1-5h, then ball mill after water quenching, and grind to a particle size of 0.5-10μ. , Dry to obtain the required glass powder.

[0056] Slurry preparation method:

[0057] Weigh the conductive silver powder and lead-free glass powder according to the proportion in Table 1, mix them thoroughly to obtain the mixed powder, put the mixed powder in the organic carrier phase according to the proportion, stir and pre-disperse, and roll it in a three-roller until the scraper fineness is less than 14 μm to obtain the l...

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Abstract

The invention relates to novel lead-free sliver slurry for a high-efficiency crystalline silicon solar battery as well as preparation and application thereof. The novel lead-free sliver slurry for the high-efficiency crystalline silicon solar battery comprises 0.5-5wt% of lead-free glass powder with the chemical composition of aTeO2-b(Bi2O3, Sb2O3)-cMO, 60-90wt% of conductive silver powder, and 9.5-35wt% of organic carrier phase. The invention further provides the preparation process and the application of the novel lead-free sliver slurry for the high-efficiency crystalline silicon solar battery. The lead-free sliver slurry disclosed by the invention is cofired according to a one-step method silk-screen printing process to be prepared into an electrode with a low contact resistance. A process of slightly doping the crystalline silicon solar battery is simplified, the conversion efficiency of the battery is improved and the manufacturing cost of the battery is reduced.

Description

Technical field [0001] The invention relates to the field of materials for crystalline silicon solar cells, in particular to a novel lead-free silver paste material for crystalline silicon solar cells, and preparation and application thereof. Background technique [0002] As energy shortages, environmental pollution and the greenhouse effect are becoming more and more serious today, providing a clean and safe commercial energy is a huge task facing human development. The use of solar energy provides the world with a solution to environmental and energy crises. The best solution. Solar cells can convert solar energy into electrical energy through deviceization, and have the advantages of pollution-free, long life, and continuous use of solar energy, which can solve the energy problems faced by mankind. [0003] Solar cells can be divided into crystalline silicon solar cells, thin-film solar cells, fuel-sensitized cells, organic polymer solar cells and so on. However, compared with...

Claims

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Application Information

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IPC IPC(8): H01B1/22H01B1/16H01B13/00H01L31/0224
Inventor 杨云霞敖毅伟郑建华任益超袁轶伦袁晓
Owner SHANGHAI BONA ELECTRONICS TECH
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