Multi-faceted photovoltaic module and cell laser cutting-edge passivation process
By constructing a current topology map to plan the cutting path, and utilizing dual-pulse laser sequences and differentiated passivation treatment, the micro-crack and passivation problems in multi-segment photovoltaic modules were solved, achieving efficient and stable cell cutting and passivation effects, and improving the overall performance and production efficiency of the modules.
CN122421484APending Publication Date: 2026-07-17TANGSHAN HAITAI NEW ENERGY TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- TANGSHAN HAITAI NEW ENERGY TECH CO LTD
- Filing Date
- 2026-04-22
- Publication Date
- 2026-07-17
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Figure CN122421484A_ABST
Abstract
本发明属于光伏组件切割与钝化技术领域，具体公开提供多分片光伏组件及电池片激光切割‑边缘钝化处理方法，旨在解决传统切割工艺导致的应力集中、热损伤大及钝化效果与电学性能难以兼顾的问题。包括：基于电池片栅线分布构建电流拓扑图谱以规划低干扰切割路径；采用双脉冲激光序列，先以高能脉冲烧蚀材料，再根据实时识别的热影响区参数动态调控低能脉冲进行晶格修复；并对切割边缘分区实施差异化钝化。本申请通过上述技术方案，显著降低隐裂与碎片率，减小热影响区宽度与表面粗糙度，同时提升开路电压与填充因子，并实现高效率、高一致性的自动化生产。
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