Aluminium paste for silicon solar battery

A silicon solar cell, aluminum paste technology, applied in circuits, electrical components, conductive materials dispersed in non-conductive inorganic materials, etc., can solve problems such as poor adhesion, warpage of silicon wafers, and formation of aluminum beads

Inactive Publication Date: 2011-11-16
IRICO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the current aluminum paste technology, there are still problems such as warping of silicon wafers after printing and sintering, poor adhesion, and formation of aluminum beads after firing.

Method used

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  • Aluminium paste for silicon solar battery
  • Aluminium paste for silicon solar battery
  • Aluminium paste for silicon solar battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A silicon solar cell aluminum paste, composed of:

[0014]

[0015]

[0016] Wherein the organic carrier 1 is composed by mass: ethyl cellulose STD-45 12%, butyl carbitol 88%; the organic carrier 2 is composed by mass: rosin modified phenolic resin 15%, DBE 85%.

Embodiment 2

[0018] A silicon solar cell aluminum paste, composed of:

[0019]

[0020] The organic carrier 1 is composed by mass: ethyl cellulose STD-458%, butyl carbitol 92%; the organic carrier 2 is composed by mass: rosin modified phenolic resin 12%, DBE 88%.

Embodiment 3

[0022] A silicon solar cell aluminum paste, composed of:

[0023]

[0024]

[0025] The organic carrier 1 is composed by mass: ethyl cellulose STD-45 10%, butyl carbitol 90%; the organic carrier 2 is composed by mass: rosin modified phenolic resin 10%, DBE 90%.

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Abstract

The invention provides aluminium paste for a silicon solar battery, which comprises the following materials: 1-3% of glass powder, 45-60% of first powered aluminum, 20-45% of second powered aluminium, 1-10% of powered aluminium alloy, 15-20% of first organic carrier, 21-5% of second organic carrier, 0.1-0.5% of dispersing agent, 0.1-0.5% of deforming agent and 0-1% of metallic oxide. The aluminium paste for the silicon solar battery, provided by the invention, has the advantages of being capable of preventing silicon slices from warping and alumina beads from forming after baking and having strong adhesive force.

Description

technical field [0001] The invention relates to a crystalline silicon solar cell, in particular to a composition of aluminum paste for a silicon solar cell. Background technique [0002] In recent years, with the increasing shortage of conventional energy sources such as coal, oil, and natural gas, it is imminent to develop renewable new energy sources. Countries have invested huge sums of money in the development of various new energy sources. Among them, the development of solar energy is the most eye-catching, and especially The most rapid development of solar cells. According to statistics, the global solar cell industry increased by 17 times in 10 years from 1994 to 2004, and the production of solar cells is mainly distributed in Japan, Europe and the United States. Domestic research on solar cells started in 1958. At present, my country has become a major producer of solar cells in the world. Because our government attaches great importance to solar power generation....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/0224H01B1/22
Inventor 朱万超
Owner IRICO
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