Glass frit, glass frit manufacturing method and aluminum paste

A manufacturing method and technology of glass frit, applied in directions such as quartz/glass/glass enamel, conductive materials dispersed in non-conductive inorganic materials, conductive layers on insulating carriers, etc., can solve problems such as weak tensile strength, and achieve elimination Warpage, elimination of effects of reduced lifespan and easy vitrification

Active Publication Date: 2022-01-14
ARTBEAM CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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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 manufacturing method and aluminum paste
  • Glass frit, glass frit manufacturing method and aluminum paste
  • Glass frit, glass frit manufacturing method and aluminum paste

Examples

Experimental program
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Effect test

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 relates to a glass frit used in the aluminum paste used to form the aluminum electrode on the back surface of a solar cell, a glass frit manufacturing method, and an aluminum paste. , and will melt at the low temperature necessary for the manufacture of solar cells, etc., and the main components are only vanadium and barium glass frit. The invention provides a glass frit, which is: vanadium V with 55 to 80 mole % 2 o 5 And 15 to 30 mol% of barium BaO as the main material, or 10 to 55 mol% of vanadium V 2 o 5 and 10 to 40 mol% of barium BaO as a main material to produce glass frit by heating molten glass and rapidly cooling the molten glass to form pieces that are pulverized to produce a glass frit that melts below 650°C.

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 Patents(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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