A preparation method of inorganic bonding material and inorganic bonding material obtained therefrom

An inorganic bonding and slurry technology, applied in conductive materials, inorganic adhesives, adhesives and other directions dispersed in non-conductive inorganic materials, which can solve the problems of high dielectric strength and high resistivity

Active Publication Date: 2015-11-25
宁夏中色新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (1) The resistivity is too high, and the resistivity of the inorganic bonding material produced according to the existing technology is greater than 1×10 6 Ω cm;
[0006] (2) The dielectric strength is too high, and the dielectric strength of the inorganic bonding material produced according to the existing technology is greater than 60kV / mm

Method used

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  • A preparation method of inorganic bonding material and inorganic bonding material obtained therefrom

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Firstly, the high-temperature melting powder is prepared as follows: the powder raw material with a purity greater than 99.99% is weighed according to the following ratio: Bi 2 o 3 1wt%, ZnO2wt%, B 2 o 3 25wt%, PbO70wt%, SiO 2 1wt%, TiO 2 1%, then ball milled in a ball mill jar for 4 hours, dried at 60°C, melted at 1350°C for 1 hour, and then water quenched.

[0028] Then, the high-temperature sintered powder was prepared as follows: La 2 o 3 Powder and Al with a purity greater than 99.99% 2 o 3 The powders were weighed according to the ratio of 20wt% and 80wt%, and mixed by ball milling for 3 hours, pressed into agglomerates under 200MP pressure, sintered at 1550°C for 5 hours, after crushing, ball milled for 30 hours, and dried at 60°C. La with a particle size of 75nm 2 o 3 / Al 2 o 3 Composite powder; SrCO with a purity greater than 99.99% 3 Powder and TiO with a purity greater than 99.99% 2 The powders were weighed at a ratio of 40wt% and 60wt%, and mix...

Embodiment 2

[0034] Firstly, the high-temperature melting powder is prepared as follows: the powder raw material with a purity greater than 99.99% is weighed according to the following ratio: Bi 2 o 3 2wt%, ZnO6wt%, B 2 o 3 1wt%, PbO75wt%, SiO 2 15wt%, TiO 2 1%,

[0035] Then ball milled in a ball mill jar for 4 hours, dried at 60°C, melted at 1350°C for 1 hour, and then water quenched.

[0036] Then, the high-temperature sintered powder was prepared as follows: La 2 o 3 Powder and Al with a purity greater than 99.99% 2 o 3 The powders were weighed according to the ratio of 30wt% and 70wt%, and mixed by ball milling for 4 hours, pressed into agglomerates under 220MP pressure, sintered at 1500°C for 8 hours, after crushing, ball milled for 24 hours, and dried at 80°C to make a medium La with a particle size of 80nm 2 o 3 / Al 2 o 3 Composite powder; SrCO with a purity greater than 99.99% 3 Powder and TiO with a purity greater than 99.99% 2 The powder is weighed according to th...

Embodiment 3

[0041] First prepare the high-temperature melting powder by the following method: the powder with a purity greater than 99.99% is weighed according to the following ratio: Bi 2 o 3 31wt%, ZnO12wt%, B 2 o 3 1wt%, PbO50wt%, SiO 2 0wt%, TiO 2 6%, then ball milled in a ball mill jar for 2 hours, dried at 70°C, melted at 1250°C for 1 hour, and then water quenched.

[0042] Then, the high-temperature sintered powder was prepared as follows: La 2 o 3 Powder raw materials and Al with a purity greater than 99.99% 2 o 3 The powder is weighed according to the proportion of each 50wt%, mixed by ball milling for 3 hours, pressed into agglomerates under 220MP pressure, sintered at 1600°C for 5 hours, after crushing, ball milled for 40 hours, and dried at 60°C to make a median particle size of 70nm La 2 o 3 / Al 2 o 3 Composite powder; SrCO with a purity greater than 99.99% 3 Powder and TiO with a purity greater than 99.99% 2 The powders were weighed at a ratio of 55wt% and 45wt...

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Abstract

The invention relates to a method for preparing an inorganic binding material for solar cell positive electrode paste and the inorganic binding material obtained through the preparation method. In particular, the method includes the following steps that (1) high temperature smelting powder is prepared, (2) high temperature sintering powder is prepared, and (3) the prepared high temperature smelting powder and the prepared high temperature sintering powder are mixed.

Description

technical field [0001] The invention relates to a preparation method of an inorganic bonding material for a front electrode slurry of a solar cell, a method for preparing an inorganic bonding material for a front electrode slurry of a crystalline silicon solar cell, and particularly relates to solar energy and silicon-based microelectronic devices A method for the preparation of an inorganic binder material. The invention also relates to the inorganic binder materials obtained by these methods. Background technique [0002] The solar cell front electrode paste is a metal silver conductor paste printed on the light-receiving surface of the solar cell, and is used to draw the current generated by the cell through the electrode. The contact resistance between the electrode material and the silicon crystal surface is as low as possible, and the mechanical properties such as excellent adhesion and solderability are the key to the production of various electronic components and t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J1/00H01B1/16
Inventor 王立惠郑伟胡楠李广坤
Owner 宁夏中色新材料有限公司
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