Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of solar cell sintering process

A solar cell and process technology, applied in circuits, electrical components, photovoltaic power generation, etc., can solve problems such as increased workload, increased cost, unfinished sintering, etc., to reduce replacement frequency, extend service life, and ensure normal operation. Effect

Active Publication Date: 2020-10-09
安徽英发睿能科技股份有限公司
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the production of solar cells based on silicon materials, they all need to enter the sintering furnace through the sintering furnace track for sintering. There is a temperature difference between the sintering furnace track gaps, but the same cell is heated unevenly in different parts, and the sintering quality may be poor. Differences, resulting in some problems in the subsequent use, such as the sintering is not completed or the place with poor sintering quality often generates high temperature, and there is a risk of spontaneous combustion of the battery over time; the current solution is to return the battery with poor sintering quality to the furnace Re-sintering, but it will inevitably lead to an increase in workload and cost

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A solar cell sintering process, after the sintering is completed, the repair surface is coated on the surface; the components of the repair surface and the parts by mass of each component are: silica sol: 25 parts, mineral oil: 20 parts, acidified castor oil : 5 parts, tetrahydromethylsulfuric acid: 4 parts, flame retardant: 2 parts, nickel powder: 1 part, nano-carbon: 1 part and repair agent: 2 parts; wherein the silica sol is acidic silica sol, and the flame retardant is Coated with red phosphorus flame retardant, the repair agent is a chain compound containing siloxane.

[0020] The coating method for repairing the surface layer is:

[0021] (1) Raise the temperature of the sintered solar cell to 75°C and keep it warm;

[0022] (2) Apply the repaired surface evenly to the surface of the solar cell, and rotate the solar cell at a constant speed until the repaired surface solidifies, while the temperature of the solar cell drops to 28°C;

[0023] (3) Heat up the temp...

Embodiment 2

[0025] A solar cell sintering process, after the sintering is completed, the repair surface is coated on the surface; the components of the repair surface and the parts by mass of each component are respectively: silica sol: 40 parts, mineral oil: 32 parts, acidified castor oil : 8 parts, tetrahydromethylsulfuric acid: 4 parts, flame retardant: 2 parts, nickel powder: 1 part, nano-carbon: 1 part and restoration agent: 2 parts; wherein the silica sol is acidic silica sol, and the flame retardant is The red phosphorus flame retardant is coated, and the repair agent is a chain compound containing succinimide.

[0026] The coating method for repairing the surface layer is:

[0027] (1) Raise the temperature of the sintered solar cell to 90°C and keep it warm;

[0028] (2) Apply the repaired surface evenly to the surface of the solar cell, and rotate the solar cell at a constant speed until the repaired surface solidifies, while the temperature of the solar cell drops to 20°C;

...

Embodiment 3

[0031] A solar cell sintering process, after the sintering is completed, the repair surface is coated on the surface; the components of the repair surface and the parts by mass of each component are: silica sol: 35 parts, mineral oil: 28 parts, acidified castor oil : 7 parts, tetrahydromethylsulfuric acid: 5 parts, flame retardant: 4 parts, nickel powder: 2 parts, nano-carbon: 2 parts and repair agent: 5 parts; wherein the silica sol is acidic silica sol, and the flame retardant is Coated with red phosphorus flame retardant, the repair agent is a chain compound containing siloxane.

[0032] The coating method for repairing the surface layer is:

[0033] (1) Raise the temperature of the sintered solar cell to 88°C and keep it warm;

[0034] (2) Apply the repaired surface evenly to the surface of the solar cell, and rotate the solar cell at a constant speed until the repaired surface solidifies, while the temperature of the solar cell drops to 25°C;

[0035] (3) The temperatur...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a sintering process of a solar cell sheet. After sintering, a surface layer is coated on the surface of the solar cell sheet for repairing. 25-40 part of silica sol, 20-32 partsof mineral oil, 5-8 part of acidified castor oil, 4-7 parts of tetrahydromethyl sulfuric acid, 2-5 parts of flame retardant, 1-3 parts of nickel power, 1-3 parts of nano carbon and 2-5 parts of restoring agent. The invention increases the coating of the repair surface layer on the basis of the sintering completion of the solar cell sheet, effectively ensures the normal operation of the solar cellsheet, and prevents combustion due to excessive temperature; Moreover, the repaired surface layer has certain self-repairing property, which is helpful to prolong the service life of the solar cell sheet and reduce the replacement frequency.

Description

technical field [0001] The invention belongs to the field of cell processing, and in particular relates to a solar cell sintering process. Background technique [0002] During the production of solar cells based on silicon materials, they all need to enter the sintering furnace through the sintering furnace track for sintering. There is a temperature difference between the sintering furnace track gaps, but the same cell is heated unevenly in different parts, and the sintering quality may be poor. Differences, resulting in some problems in the subsequent use, such as the sintering is not completed or the place with poor sintering quality often generates high temperature, and there is a risk of spontaneous combustion of the battery over time; the current solution is to return the battery with poor sintering quality to the furnace Re-sintering will inevitably lead to an increase in workload and an increase in cost. [0003] Therefore, it is an urgent problem for those skilled ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/18
CPCH01L31/1804Y02E10/547Y02P70/50
Inventor 狄宝忠张华潘国凤杨明娟祝秋陈林阳
Owner 安徽英发睿能科技股份有限公司