Causes of solar panel cracks
under normal circumstances, the hidden cracks of solar panels are not defects that can be directly found by the naked eye, and they need to be observed by detection methods such as el imaging. hidden cracks will reduce the power generation efficiency of the battery modules, and severely will also cause the hot spot effect, which will affect the service life of the entire photovoltaic modules. below, the editor of hesheng will introduce you to the reasons for the hidden cracks of solar panels.
1). causes of hidden cracks in solar panels
1. defects of raw materials
the defect of the raw material is the main factor that causes the component to crack, the quality of the raw material of the cell directly affects the quality of the product. cells are produced from silicon rods through processes such as growth, cutting, printing, and sintering. insufficient purity of crystalline silicon, excessive curvature of crystalline silicon cells, and excessive shrinkage of eva materials in the horizontal and vertical directions will cause cracks in the production of battery modules.
2. production process error
in the production of battery components, sorting, single string welding, and lamination are required. framing, cleaning and curing test, packaging and other links. incorrect processes used in the production process can also cause cracks in the battery components. for example, if the welding heating plate temperature is too low during single welding, the welding temperature is too high, the welding speed is too slow, the lamination parameter setting is unreasonable, the vacuum pressure is too high, and the vacuum pressure is too high, which will cause the components to crack.
3. improper device settings
in the production process of battery components, stringing machines, laminators, and framing machines all directly exert force on the battery components. if the equipment output is set improperly or the equipment fails, it will cause the battery components to crack. if the soldering iron tip used in a single series soldering process is used for a long time and is not processed in time, it will cause unevenness in the pit of the soldering iron tip, resulting in uneven force during soldering, and cracking of the battery assembly.
4. manual error
there are many hidden cracks caused by human factors in battery components, which occur in various links such as production, transportation, installation, operation and maintenance. although a large number of automated equipment is now used in production, manual transportation and fixation are still required in the processes of stacking, framing, and cleaning, and they will be pressed by fingers during the transportation process. the bumpy way of loading and unloading goods caused hidden cracks. in addition, the irregular operation of the workers during installation and cleaning can also cause the components to crack. for example, the construction personnel step on the components to install; the operation and maintenance personnel stａnd on the components to clean the components and other irregular operations.
5. weather and environmental impact
during the use of battery modules, due to the impact of the environment, the photovoltaic modules will also be cracked. for example, the components will vibrate violently in strong winds; the surface of components will be subjected to uneven pressure of snow after heavy snow; when the components are subjected to severe impact of hail in hail weather, it may cause cracks.
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1). causes of hidden cracks in solar panels
1. defects of raw materials
the defect of the raw material is the main factor that causes the component to crack, the quality of the raw material of the cell directly affects the quality of the product. cells are produced from silicon rods through processes such as growth, cutting, printing, and sintering. insufficient purity of crystalline silicon, excessive curvature of crystalline silicon cells, and excessive shrinkage of eva materials in the horizontal and vertical directions will cause cracks in the production of battery modules.
2. production process error
in the production of battery components, sorting, single string welding, and lamination are required. framing, cleaning and curing test, packaging and other links. incorrect processes used in the production process can also cause cracks in the battery components. for example, if the welding heating plate temperature is too low during single welding, the welding temperature is too high, the welding speed is too slow, the lamination parameter setting is unreasonable, the vacuum pressure is too high, and the vacuum pressure is too high, which will cause the components to crack.
3. improper device settings
in the production process of battery components, stringing machines, laminators, and framing machines all directly exert force on the battery components. if the equipment output is set improperly or the equipment fails, it will cause the battery components to crack. if the soldering iron tip used in a single series soldering process is used for a long time and is not processed in time, it will cause unevenness in the pit of the soldering iron tip, resulting in uneven force during soldering, and cracking of the battery assembly.
4. manual error
there are many hidden cracks caused by human factors in battery components, which occur in various links such as production, transportation, installation, operation and maintenance. although a large number of automated equipment is now used in production, manual transportation and fixation are still required in the processes of stacking, framing, and cleaning, and they will be pressed by fingers during the transportation process. the bumpy way of loading and unloading goods caused hidden cracks. in addition, the irregular operation of the workers during installation and cleaning can also cause the components to crack. for example, the construction personnel step on the components to install; the operation and maintenance personnel stａnd on the components to clean the components and other irregular operations.
5. weather and environmental impact
during the use of battery modules, due to the impact of the environment, the photovoltaic modules will also be cracked. for example, the components will vibrate violently in strong winds; the surface of components will be subjected to uneven pressure of snow after heavy snow; when the components are subjected to severe impact of hail in hail weather, it may cause cracks.
使用布氏硬度计需要注意哪些
实验室净气型通风柜有哪些优势
北京奥林巴斯CX22显微镜--让你的每一分钱都花在刀刃上
全坚固型加固机和半加固之间的区别
合理的维护保养焦炉煤气气相色谱仪有利于延长使用寿命
Causes of solar panel cracks
浅谈SZ71-GDYS-101SQ2便携式COD测定仪
中走丝线切割机床之档丝棒限位装置技术解析
GB 50325-2020室内环境污染解决方案
电位滴定法：医药行业中*含量检测
日本佐竹satake谷物鉴别器RGQI100A操作说明
你们对植物生长室的控制系统了解多少？
itc多媒体展厅物联云控系统解决方案
电动平面磨床产品特点
硫化物前处理装置的结构组成及优点
10KV绝缘电阻测试仪生产厂家，价格产品规格
德国宝德ELEMENT 型 8802 连续控制阀系统
大隈OKUMA电机发热停转的故障维修
恒温恒湿试验箱工作室需要注意哪些问题
聚乙烯直埋保温管施工技术要求