| Title |
Electrode Pattern Design of Dividing and Bonding Solar Cells for Cost Reduction |
| Authors |
오원제(Won-Je Oh) ; 박지수(Su-Ji Park) ; 이재형(Jea-Hyeong Lee) |
| DOI |
https://doi.org/10.5370/KIEE.2020.69.5.677 |
| Keywords |
Shingled PV module; Metal grid; Electrode pattern; Simulation; Ag paste; Screen printing |
| Abstract |
Shingled PV modules are manufactured by dividing and bonding solar cells. This method uses a laser to cut the solar cell and bond the solar cell using Electrically Conductive Adhesives (ECA). This module has a bus bar-free structure that can eliminate shadowing loss and have high output. However, this module is more expensive than conventional modules because it has additional processes. Therefore, it is essential to reduce the unit cost to secure the economical efficiency of the shingled module. We focused on the metal grid of the solar cell to reduce the cost. The metal grid for solar cells was designed to reduce the amount of silver paste used. Conventional-type grid and paste reduction-type grid were simulated and compared.
The metallization of the solar cell used the screen printing method. The weight of the silver paste of the produced solar cell was measured. As a result of comparing with the paste reduction-type pattern and the conventional-type pattern, the paste was reduced by 43.556%. |