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Electroconductive paste for solar cell, solar cell, manufacturing method thereof, and solar cell module

A solar cell and conductive paste technology, applied to conductive materials, circuits, electrical components, etc. dispersed in non-conductive inorganic materials, can solve problems such as battery efficiency decline, improve electrical connections, improve battery efficiency, and solve battery problems. The effect of reduced efficiency

Active Publication Date: 2020-09-22
GIGA SOLAR MATERIALS
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  • Abstract
  • Description
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Problems solved by technology

More specifically, when the glass frit burns through excessively, it can lead to a decrease in cell efficiency

Method used

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  • Electroconductive paste for solar cell, solar cell, manufacturing method thereof, and solar cell module
  • Electroconductive paste for solar cell, solar cell, manufacturing method thereof, and solar cell module
  • Electroconductive paste for solar cell, solar cell, manufacturing method thereof, and solar cell module

Examples

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Effect test

experiment example

[0037] In order to prove that the electroconductive paste of the present invention can improve the electrical connection and improve the efficiency of the battery, the following experiment example is specially made.

[0038] Preparation of conductive paste and performance evaluation of solar cells

[0039] The conductive pastes for solar cells were prepared with the contents of the components listed in Tables 1 to 5 below, and their solar cell properties were measured, including fill factor FF and conversion efficiency NCell. In Table 1 to Table 5, the addition amount of the tellurium alloy compound and the glass is based on the total weight of the conductive paste, and the unit is weight percent.

[0040] The preparation method is to first mix about 60 grams to about 95 grams of silver powder, about 0.01 grams to about 7 grams of glass, about 5 grams to about 40 grams of organic carrier and about 0.01 grams to about 5 grams of tellurium alloy The compounds are mixed and disp...

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Abstract

The present invention provides a conductive paste for a solar cell, a solar cell, a manufacturing method of the solar cell, and a solar cell module. The conductive paste for the solar cell includes silver powder, glass, an organic carrier, and a tellurium alloy compound; the melting point of the tellurium alloy compound is at least higher than 300 DEG C, the softening point of the glass.

Description

technical field [0001] The present invention relates to a conductive paste for solar cells, a solar cell and its manufacturing method, and a solar cell module, and particularly relates to a conductive paste for solar cells, a solar cell and a solar cell that can improve electrical connection and improve cell efficiency. Its manufacturing method and solar battery module. Background technique [0002] A solar cell is a device that converts sunlight energy into electrical energy. It generates electrons and holes by irradiating visible light on the substrate, and guides them through the front electrode (light-receiving surface) and back electrode (non-light-receiving surface) on both sides of the substrate. Electrons and holes form an electric current. The two electrodes can be manufactured by attaching the conductive paste on the substrate by screen printing or coating, and then sintering at a specific temperature range. [0003] In the production process of solar cells, the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B1/16H01B1/22H01L31/0224
CPCH01B1/16H01B1/22H01L31/022425Y02E10/50
Inventor 叶志贤辛璧宇郑仲杰杨育硕
Owner GIGA SOLAR MATERIALS
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