Solar cell back electric field aluminium paste and preparation method thereof
A technology of solar cells and back electric field, applied in the field of solar cells, can solve the problems of slurry leakage and clogging of the screen, and achieve the effect of improving the photoelectric conversion efficiency.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0041] 1. Preparation of Glass Powder
[0042] 70 parts by weight of bismuth oxide (Bi 2 o 3 ), 15 parts by weight of boron trioxide (B 2 o 3 ), 8 parts by weight of silicon dioxide (SiO 2 ), 4.5 parts by weight of alumina (Al 2 o 3 ), 2.5 parts by weight of zinc oxide (ZnO) were added to a V-type mixer (V-20 type, Taizhou Liming Pharmaceutical Machinery Co., Ltd.) and mixed evenly. Take it out, put it into a porcelain crucible, then put it into a silicon carbide rod furnace, raise the temperature to preheat to 550°C, keep it warm for 0.5 hours, then raise it to 1250°C, and melt for 0.5 hours. Take out, quench in water, and then filter to obtain coarse glass frit. Put the obtained coarse glass frit into a ball mill jar, control the ratio of zirconia balls: glass beads: deionized water = 2:1:0.5, and mill at a speed of 100 r / min for 55 hours. After ball milling, take it out, filter and dry to get the average particle size D 50 玻璃 = 10 μm glass frit.
[0043] 2. Prepa...
Embodiment 2
[0052] According to the method of Example 1, aluminum paste S2 was obtained. The difference is:
[0053] At 45°C, 10 parts by weight of polyamide fine powder wax was dissolved in 90 parts by weight of organic solvent, and stirred for 30 minutes to obtain a colorless transparent gel.
[0054] Dissolve 10 parts by weight of ethyl cellulose, 15 parts by weight of gel, and 1 part by weight of tributyl phosphate in 74 parts by weight of an organic solvent at 70° C., fully dissolve and then cool to obtain a transparent and uniform organic carrier. Wherein, the weight percentages of polyamide micropowder wax and tributyl phosphate are respectively 1.5wt% and 1wt%, and the ratio of weight percentage is polyamide micropowder wax: tributyl phosphate=1.5:1.
Embodiment 3
[0056] According to the method of Example 2, aluminum paste S3 was obtained. The difference is:
[0057] 10 parts by weight of ethyl cellulose, 30 parts by weight of gel, and 1 part by weight of tributyl phosphate were dissolved in 59 parts by weight of an organic solvent to obtain an organic vehicle. Wherein, the weight percentages of polyamide micropowder wax and tributyl phosphate are respectively 3wt% and 1wt%, and the ratio of weight percentage is polyamide micropowder wax: tributyl phosphate=3:1.
[0058] The viscosity of aluminum paste S4 is relatively high, and it is not easy to evenly coat the screen.
PUM
Property | Measurement | Unit |
---|---|---|
particle size | aaaaa | aaaaa |
particle size | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com