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Paste composition for electrode for solar cell, and solar cell produced using same

A technology of solar cells and compositions, applied in conductive materials, conductive coatings, circuits, etc. dispersed in non-conductive inorganic materials, can solve problems such as decreased slip, improve slip, and realize fine line width. Effect

Pending Publication Date: 2020-08-14
LS NIKKO COPPER INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to solve the above-mentioned problems, it is possible to adopt a method of modifying silicone oil by introducing polyether groups containing ethylene oxide (EO) groups and propylene oxide (PO) groups, but this will lead to slippage. falling problem

Method used

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  • Paste composition for electrode for solar cell, and solar cell produced using same
  • Paste composition for electrode for solar cell, and solar cell produced using same
  • Paste composition for electrode for solar cell, and solar cell produced using same

Examples

Experimental program
Comparison scheme
Effect test

manufacture example 1-1

[0064] After putting 2L of DMW (De-Mineralized Water) and 500g of the produced silver powder into a 5L beaker, the silver powder was dispersed using a high-speed mixer (Homo-mixer) at 4000rpm for 20 minutes, This produces a silver suspension. In addition, 30 ml of purified water was poured into a 50 ml beaker, and 5 g of PS-810E (ADEKA Corporation) (Fatty alcohol phosphate) (Fatty Alcohol Phosphate) was poured into the beaker, followed by stirring for 10 minutes using ultrasonic waves to produce a coating liquid. After the coating liquid was added to the silver suspension and stirred for 20 minutes at 4000 rpm to perform surface treatment on the silver powder, the silver powder was produced by additional washing with purified water by centrifugal separation.

[0065] Next, after reusing 2L of purified water to disperse the produced silver powder, a solution of ammonium stearate dissolved in 15ml of ethanol was added and stirred at 4000rpm for 20 minutes. The powder is surface-tr...

manufacture example 1-2

[0068] After putting 100g of silver powder and 0.5g of anionic surfactant, PS-810E (ADEKA) into 400ml of purified water, use a high-speed mixer (K&S, for laboratory use) for 20 minutes under 3000RPM conditions. The silver powder was dispersed. After adding 2.7 g of octadecylamine ethanol solution (the content of octadecylamine is 11.25% by weight) to the solution in which the silver powder was dispersed, stirring was performed for 20 minutes. After the stirring was stopped, the mixed solution was filtered with a centrifugal separator and the filter medium was washed with pure water, and then dried at 70°C for 12 hours to obtain silver powder with the first surface treatment. Next, the above-mentioned silver powder is crushed by a food mixer, and then crushed by a jet mill (Jetmill).

manufacture example 1-3

[0070] Except that stearic acid was used instead of ammonium stearate, it was implemented in the same manner as in Production Example 1-1 described above.

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Abstract

The present invention provides a paste composition for a solar cell electrode, comprising conductive metal powder, glass frit, and organic vehicles, wherein the conductive metal powder comprises at least two surface treatment parts positioned at the outer periphery thereof, and one of the surface treatment parts is silicone oil.

Description

Technical field [0001] The present invention relates to a slurry composition for solar cell electrodes and a solar cell manufactured using the slurry composition. Background technique [0002] Here, background art related to the present disclosure will be provided, but this does not necessarily mean a well-known technique. [0003] A solar cell is a semiconductor element used to convert solar energy into electrical energy, usually in the form of a p-n junction, and its basic structure is the same as that of a diode. [0004] figure 1 As the structure of a general solar cell element, the solar cell element is usually composed of a p-type silicon semiconductor substrate with a thickness of 160 to 250 μm. On the light-receiving surface side of the silicon semiconductor substrate, an n-type doped layer with a thickness of 0.3 to 0.6 μm, an anti-reflection film and a front electrode are formed thereon. In addition, a back electrode is formed on the back side of the p-type semiconductor ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/0216H01B1/02H01L31/0224
CPCC09D5/24H01B1/02H01B1/22H01B1/16Y02E10/50H01L31/022425H01L31/02167H01L31/02168
Inventor 田铉金仁喆高旼秀卢和泳张文硕金冲镐朴刚柱金和重
Owner LS NIKKO COPPER INC