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Solar cell conductive paste containing zinc powder

A technology of solar cells and conductive paste, which is applied in the direction of conductive materials dispersed in non-conductive inorganic materials, cable/conductor manufacturing, circuits, etc., can solve the problems of large environmental pollution and poor weldability, and reduce production costs. Effect of improving electrical conductivity and reducing manufacturing cost

Active Publication Date: 2013-05-22
重庆新锐科技服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In most electronic pastes, the inorganic binder is mainly lead-containing glass powder with a low melting point, which has major defects in environmental pollution and poor solderability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] A conductive paste for solar cells containing zinc powder, which is prepared from the following parts by weight (kg) of raw materials:

[0032] A material 51, B material 15, C material 14, zinc powder 2.9, 2-methyl-4-ethylimidazole 0.6, silicone oil: 0.6;

[0033] The material A is prepared from the following parts by weight of raw materials: 1-5μm silver powder 40, 11-15μm silver powder 15, 61-90nm aluminum powder 22, 10-15μm glass powder 12, organic carrier A 20, silane coupling agent KH550 2. Sodium dodecyl sulfonate 1;

[0034] The material B is prepared from the following raw materials in parts by weight: 6-10μm aluminum powder 47, 61-90nm aluminum powder 22, 20-25μm glass powder 10, organic carrier B 20, castor oil 1.2, phthalic acid two Methyl 3;

[0035] The material C is prepared from the following raw materials in parts by weight: 6-10 μm copper powder 55, 30-60 nm copper powder 10, 10-15 μm glass powder 8, organic carrier C 20;

[0036] The glass powder is prepared f...

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PUM

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Abstract

The invention discloses solar cell conductive paste containing zinc powder. The solar cell conductive paste containing zinc powder is prepared by the following raw materials: by weight, A materials 50-55, B materials 10-15 C materials 10-15, zinc powder 2-4, 2-methyl-4-ethyl imidazole 0.3-0.6, and silicone oil 0.5-1. Due to the fact that lead is not contained, the solar cell conductive paste containing zinc powder completely conforms to the requirements of environmental protection, can be applied to the production of solar cells, and can form strong adhesion on the surfaces of solar cells, cell photoelectric conversion efficiency is high, and meanwhile silver powder, aluminum powder and copper powder of different particle diameters are selected to increase contact areas among particles. Therefore, conductivity of silver paste is improved.

Description

Technical field [0001] The invention relates to the field of electronic fine chemicals, specifically a solar cell conductive paste containing zinc powder. Background technique [0002] Conductive paste is a key material for electronic component packaging, electrodes and interconnection. It mainly includes burn-in type solar cell conductive paste containing zinc powder and curing type conductive adhesive (conductive ink). [0003] sintered conductive paste is mainly used in solar cells and other industries. After sintering, it is used as electrodes. Curing conductive inks are widely used in printed circuits and electronic packaging industries. [0004] Conductive paste can be divided into carbon paste (graphite conductor), metal paste (gold powder, silver powder, copper powder, silver-copper alloy) according to the different fillers, and modified ceramic paste. [0005] In comparison of performance, the conductivity of precious metal fillers is the best, followed by carbon paste....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B1/16H01B1/22H01B13/00H01L31/0224
Inventor 年福枭
Owner 重庆新锐科技服务有限公司