Conductive slurry used for solar energy battery

A technology of solar cells and conductive pastes, applied to conductive materials dispersed in non-conductive inorganic materials, circuits, photovoltaic power generation, etc., can solve problems such as adverse effects, achieve high temperature viscosity, good ohmic contact, and high surface tension Effect

Inactive Publication Date: 2018-10-16
SUZHOU ISILVER MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, in previous studies, it was proposed to avoid glass crystallization, and it was believed that crystallization would cause adverse effects

Method used

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  • Conductive slurry used for solar energy battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1~4

[0038] Embodiment 1~4: A kind of conductive paste for solar cell, described conductive paste is made up of the following components by weight:

[0039] Table 1

[0040]

Example 1

Example 2

Example 3

Example 4

Silver powder 75~92 parts

78 copies

90 copies

88 copies

82 copies

5~12 parts of organic solvent

5 copies

8 servings

4.5 servings

6 servings

2~3 copies of organic carrier

3 copies

5 copies

2.6 servings

4.5 servings

Alkylphenol polyoxyethylene ether 0.5~1 part

0.7 parts

0.6 parts

0.9 parts

0.8 parts

Metal glass-ceramic powder 0.8~5.3 parts

2.8 servings

0.9 parts

3.2 parts

1 copy

[0041] The above-mentioned organic carrier is formed by mixing butyl carbitol acetate, ethyl cellulose, acrylate, oleic acid, polypropylene glycol, and polyamide wax in a weight ratio of 75:7:6:4:3:5.

[0042] The above-mentioned organic carrier is formed ...

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Abstract

The invention discloses a conductive slurry used for a solar energy battery. The conductive slurry is prepared from the following components, by weight: 75-92 parts of silver powder, 5-12 parts of anorganic solvent, 2-3 parts of an organic carrier, 0.5-1 part of alkyl phenol polyoxyethylene ether, and 0.8-5.3 parts of metal microcrystalline glass powder. The particle size D50 of the metal microcrystalline glass powder is 0.3-2 [mu]m. The metal microcrystalline glass powder is prepared from the following components: 10-50 parts of tellurium dioxide, 15-70 parts of bismuth oxide, 2-10 parts ofzinc oxide, 1-15 parts of tungsten oxide, 5-20 parts of lithium oxide, 0.4-2 parts of boric acid, 1-6 parts of molybdenum chloride, 1-4 parts of silicon oxide, and 1-2 parts of barium carbonate. The battery conversion efficiency is effectively improved, the conductive slurry has characteristics of large viscosity and large surface tension at high temperature, the molten glass does not flow easilyduring a slurry sintering process, and the fine line is maintained.

Description

technical field [0001] The invention relates to a conductive paste for solar cells, belonging to the technical field of solar cell functional materials. Background technique [0002] Photovoltaic cells, as an important branch of new clean energy, have achieved rapid development in recent years. Photovoltaic cell technology is also changing with each passing day. The entire industry chain is actively improving the conversion efficiency of photovoltaic cells and reducing costs through technological innovation, striving to achieve grid parity and replace traditional high pollution. energy. [0003] Crystalline silicon photovoltaic cells are currently the most important type of photovoltaic cells, accounting for more than 90%. The principle of photoelectric conversion is: boron-doped P-type silicon and phosphorus-doped N-type silicon form a PN junction. The junction then absorbs photon energy to excite electron transitions, forming electron-hole pairs, thereby generating carrie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B1/22H01L31/0224
CPCH01B1/22H01L31/022425H01B1/20H01L31/0224Y02E10/50
Inventor 周欣山汪山包娜
Owner SUZHOU ISILVER MATERIALS
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