Analysis of Core Structures of PV Panel Cells: Grid Lines, PAD Points, MARK Points, and Forked Notches 2026-05-19
This article focuses on the four core structures of PV panel cells—grid lines, PAD points, MARK points, and forked notches. It elaborates on their respective definitions, structural characteristics, and core functions: grid lines serve as the "current collection and transmission network" to collect and transport photogenerated electrical energy; PAD points act as the "connection bridge" between cells and ribbons, enhancing conductivity and welding strength; MARK points function as the "positioning benchmark" for cell printing, ensuring the accuracy of grid line printing; forked notches are the "chip-resistant protection design" to avoid cell chipping and microcracks during processing. The article points out that these four tiny structures cooperate with each other, forming the foundation for the efficient and stable operation of PV cells, and reflects the importance of detailed design in the iteration of photovoltaic technology.
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