Glass frit, glass frit production method, and aluminium paste

A manufacturing method and technology of glass frit, applied in the direction of quartz/glass/glass enamel, conductive materials dispersed in non-conductive inorganic materials, metal/alloy conductors, etc., can solve problems such as weak tensile strength and eliminate warping , Eliminate the effects of low life expectancy and easy vitrification

Active Publication Date: 2019-11-15
ARTBEAM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when the lead wire is directly welded to the aluminum electrode, its tensile strength is weak, so in the past, a plurality of holes were dug in the aluminum electrode, and silver paste was coated and sintered here, and the lead wire was welded here.

Method used

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  • Glass frit, glass frit production method, and aluminium paste
  • Glass frit, glass frit production method, and aluminium paste
  • Glass frit, glass frit production method, and aluminium paste

Examples

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Embodiment 1

[0028] figure 1 The manufacturing flow chart of the ABS glass (Art Beam solar cell glass) of this invention is revealed.

[0029] exist figure 1 , S1 Prepare and melt glass raw materials (900°C to 1200°C) (after the temperature of the electric furnace rises, add and leave for 1 hour). This is when the temperature of the electric furnace is raised to the optimum temperature determined by experiments in the range of 900°C to 1200°C, the prepared glass raw material is put into the crucible, inserted, dissolved and left for 1 hour. Alternatively, the raw material put in the crucible may be melted and left to stand for 1 hour by raising the temperature to a predetermined temperature in an electric furnace. In the experiment, the glass raw material is, for example, the following figure 2 Displayed below etc.

[0030]

[0031]

[0032] S2 produces glass shards (3 to 5mm). As described below, the molten glass produced in S1 was produced while flowing on the cooled metal ro...

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Abstract

The present invention pertains to a glass frit for use in an aluminium paste for forming an aluminium electrode on the back surface of a solar cell or the like, a glass frit production method, and analuminium paste. The purpose of the present invention is to achieve production of a glass frit which does not contain metals such as iron, copper, nickel, and chromium, and contains only vanadium andbarium as main components that melt at a low temperature required for production of a solar cell or the like. The glass frit is characterized by being produced by heating 55-80 mol% of vanadium V2O5 and 15-30 mol% of barium BaO as main components, or 10-55 mol% of vanadium V2O5 and 10-40 mol% of barium BaO as main components, to produce a molten glass, and by pulverizing broken pieces obtained byrapidly cooling the molten glass, wherein the glass frit melts at 650 degrees centigrade or less.

Description

technical field [0001] The present invention relates to a glass frit used in an aluminum paste for forming an aluminum electrode such as a back surface of a solar cell, a method for producing the glass frit, and the aluminum paste. Background technique [0002] Conventionally, the development of solar cells, which is one of renewable energy sources, has been based on the semiconductor technology that has played a leading role in the 20th century. It is an important development on a global level that governs human existence. The subject of its development is not only the efficiency of converting sunlight into electrical energy, but also the subject of reducing manufacturing costs and pollution-free. It is considered important to reduce or eliminate the amount of silver (Ag) and lead (Pb) used in electrodes in order to achieve the above-mentioned development subject. [0003] For example, an aluminum electrode (p+) is formed by coating and firing an aluminum paste on the ent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C8/02C03C8/18H01B1/16H01B5/14H01L31/0224H01B3/08
CPCC03C8/02C03C8/18H01L31/0224H01B1/16H01B3/08H01B5/14H01B1/02H01B3/084
Inventor 上迫浩一新井杰也菅原美爱子小林贤一小宫秀利松井正五锦织润
Owner ARTBEAM CO LTD
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