Method for manufacturing monocrystalline silicon wafer containing arced side, method for manufacturing monocrystalline silicon cell, and photovoltaic module
US12294036B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 14, 2023 |
| Grant date | May 6, 2025 |
| Priority date | — |
| Expiry date | Jul 30, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method for manufacturing a solar cell, a method for manufacturing a monocrystalline silicon wafer and a photovoltaic module. The method for manufacturing a monocrystalline silicon wafer includes: providing a monocrystalline silicon rod; squaring the monocrystalline silicon rod to form a quasi-square silicon rod with quasi-square cross-section having an arc, a length of the arc being not less than 15 mm; slicing the quasi-square silicon rod to form at least one quasi-square silicon wafer having the arc. The method for manufacturing at least one solar cell includes: using the method described above to obtain a quasi-square silicon wafer having an arc; forming a first solar cell by processing the quasi-square silicon wafer; scribing the first solar cell to obtain a square-shaped sub-solar cell and at least one strip-shaped sub-solar cell. The above methods improve the utilization rate of the monocrystalline silicon rod and reduce production cost.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.