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Solar cell front surface electrode paste

A solar cell and front electrode technology, applied in the photovoltaic field, can solve the problems of narrow process port, low photoelectric conversion efficiency, large series resistance, etc., and achieve the effect of improving the narrow process port

Inactive Publication Date: 2018-08-21
LUOYANG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the above problems, to provide a solar cell positive electrode paste, to solve the technical problems of narrow process port, large series resistance and low photoelectric conversion efficiency in the prior art.

Method used

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  • Solar cell front surface electrode paste

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Effect test

Embodiment 1

[0041] A solar cell positive electrode paste, comprising the following components: 83.8g of silver powder, 5g of glass powder, 8g of organic vehicle, and 2g of functional additives.

[0042] The glass powder includes the following components: 20 parts of lead oxide, 15 parts of bismuth oxide, 8 parts of silicon oxide, 5 parts of boron oxide, 1 part of aluminum oxide, 3 parts of zinc oxide, 30 parts of antimony oxide, 4 parts of sodium carbonate parts, 2 parts of lithium oxide, 5 parts of alum oxide, and 0.1 part of sodium fluoride.

Embodiment 2

[0044] A solar cell positive electrode paste, comprising the following components, silver powder 95g, glass powder 1g, organic vehicle 15g, functional additive 0.2g. The glass powder includes the following components: 35 parts of lead oxide, 8 parts of bismuth oxide, 18 parts of silicon oxide, 2 parts of boron oxide, 3 parts of aluminum oxide, 1 part of zinc oxide, 40 parts of antimony oxide, 2 parts of sodium carbonate 15 parts of lithium oxide, 1 part of alum oxide, and 3 parts of sodium fluoride.

Embodiment 3

[0046] A solar cell positive electrode paste, comprising the following components: 91 parts of silver powder, 1 part of glass powder, 10 parts of organic vehicle, and 0.2 part of functional additives. The glass powder includes the following components: 20 parts of lead oxide, 15 parts of bismuth oxide, 8 parts of silicon oxide, 5 parts of boron oxide, 1 part of aluminum oxide, 3 parts of zinc oxide, 30 parts of antimony oxide, 4 parts of sodium carbonate parts, 2 parts of lithium oxide, 5 parts of alum oxide, and 0.1 part of sodium fluoride.

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Abstract

The invention belongs to the photovoltaic technological field and relates to solar cell front surface electrode paste. The paste comprises the following components by weight percentage: 83.8 to 95 parts of silver powder; 1 to 5 parts of glass powder; 8 to 15 parts of organic carrier; and 0.2 to 2 parts of functional additive. With the paste adopted, the technical problems of narrow process openings, large series resistance and low photoelectric conversion efficiency of crystalline silicon solar cells in the prior art can be solved.

Description

technical field [0001] The invention relates to the field of photovoltaic technology, in particular to a solar cell front electrode paste. Background technique [0002] A crystalline silicon solar cell generally consists of a front electrode, an anti-reflection layer, an emitter, a P / N junction region, a base, an aluminum back field electrode and a back electrode. Among them, the front electrode supplies power to the outside by collecting the photogenerated carriers in the adjacent area. In order to enable the electric energy obtained by battery conversion to be output, two positive and negative electrodes must be made on the battery. The electrode on the illuminated side of the battery is called the upper electrode; the electrode on the back of the battery is called the lower electrode. The upper electrode is usually made into a grid line, which is beneficial to the collection of photo-generated current and makes the battery have a larger light-receiving area; the lower e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B1/16H01B1/22H01L31/0224
CPCH01B1/16H01B1/22H01L31/022425Y02E10/50
Inventor 靳瑞敏
Owner LUOYANG NORMAL UNIV
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