红绿双激光划片对半片电池与组件光电性能影响的研究  

The Influence of Scribing by Red-Green Dual Lasers on the Photoelectrical Properties of Half-Cell and Module

作　　者：张鑫[1,2] 范维涛 勾宪芳 黄钧林 程晶 沈鸿烈 ZHANG Xin;FAN Weitao;GOU Xianfang;HUANG Junlin;CHENG Jing;SHEN Honglie(College of Materials Science and technology,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;Ycergy(Suzhou)Technology Co.,Ltd.,Suzhou Jiangsu 215121,China;CECEP(Zhenjiang)Solar Energy Co.,Ltd.,Zhenjiang Jiangsu 214500,China)

机构地区：[1]南京航空航天大学材料科学与技术学院,南京210016 [2]意诚新能(苏州)科技有限公司,苏州215121 [3]中节能科技(镇江)有限公司,江苏镇江214500

出　　处：《电子器件》2020年第5期1046-1050,共5页Chinese Journal of Electron Devices

基　　金：国家自然科学基金项目(61774084);江苏省科技成果转化专项资金项目(BA2019047)。

摘　　要：高功率、低成本晶硅太阳能光伏组件是目前光伏行业发展的主流方向,半片电池组件技术因其能够显著提高组件测试功率而被广泛关注。本文研究了不同波长激光划片对电池片的损伤原因与影响,并首次采用红绿双激光划片技术,既避免了常规单波长激光划片时微隐裂的出现,又可以保证划片效率。通过与常规整片组件和红外激光划片组件对比,发现红绿双激光划片组件的连续100 d的发电量分别提升了4.06%和0.33%。该双激光划片技术可以为半片电池组件技术全面推广应用提供强力的支持。High power and low cost module of crystalline silicon is the main stream in current photovoltaic industry.The half-cell module technology is receiving great concern since it can significantly reduce the power loss in the module encapsulating process and increase the module’s power generation.In this paper,the mechanism and influence of single wavelength laser scribing damage on solar cell is studied first and then a red-green dual lasers scribing technology is developed,which can avoid the occurrence of hidden micro-cracks and ensure the scribing efficiency.By comparison with the actual electricity generation from normal cell module and infra-red laser scribed hall-cell module,it is found that the total generated electricity from red-green dual lasers scribed hall-cell module for 100 days increases by 4.06%and 0.33%respectively.This newly developed dual lasers scribing technology will give a strong support to popularize the hall-cell module in photovoltaic industry.

关 键 词：半片电池技术 红绿双激光 微隐裂 无损划片 发电功率 

分 类 号：TK513[动力工程及工程热物理—热能工程] TG485[金属学及工艺—焊接]