CN104078403A - Mass production device capable of rapidly reducing light-induced degradation of crystalline silicon solar cells - Google Patents
Mass production device capable of rapidly reducing light-induced degradation of crystalline silicon solar cells Download PDFInfo
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Abstract
本发明公开了一种快速改善晶硅太阳电池光致衰减的量产装置，包括保温箱体、多个光源、多个加热器件和放置电池片的电池片传送带，电池片传送带设置在保温箱体内，并且电池片传送带为圆形或U形结构，多个光源分布在电池片传送带的上方以便用于照射电池片传送带上的电池片，多个加热器件安装在保温箱体内，并且分布在电池片传动带的下方以便用于加温电池片传送带上的电池片。本发明能够节省光源和加热器件的使用数量，降低设备成本，有效地缩短对电池片的处理时间，增加其生产产能，降低了生产成本，满足产业化生产的需求。
The invention discloses a mass production device for rapidly improving the light-induced attenuation of crystalline silicon solar cells, which includes a thermal insulation box, a plurality of light sources, a plurality of heating devices, and a battery conveyor belt for placing battery slices. The battery conveyor belt is arranged in the thermal insulation box. , and the cell conveyor belt is a circular or U-shaped structure, multiple light sources are distributed above the cell conveyor belt for illuminating the cells on the cell conveyor belt, and multiple heating devices are installed in the insulation box and distributed on the cell The bottom of the belt is used for heating the cells on the cell conveyor belt. The invention can save the number of light sources and heating devices used, reduce equipment costs, effectively shorten the processing time of battery chips, increase its production capacity, reduce production costs, and meet the needs of industrialized production.
Description
技术领域technical field
本发明涉及一种快速改善晶硅太阳电池光致衰减的量产装置，属于太阳电池技术领域。The invention relates to a mass production device for rapidly improving light-induced attenuation of crystalline silicon solar cells, and belongs to the technical field of solar cells.
背景技术Background technique
目前，光致衰减(light-induced degradation：LID)是指晶硅太阳能电池经过光照后电池效率下降的现象，在P型单晶电池上最明显，衰减比可以达到相对比3％-7％，其次是多晶，也在1％-1.5％之间，以常见的标准商业60片多晶组件为例，电池效率为17.5％，那么由于LID现象造成的组件输出功率损耗约在2.55W-4W之间。而单晶P型电池片远高于这个范围。目前普遍被认可的解释是由于B-O复合中心造成的。要消除这种现象，方法可以是降低硅片中B或O含量，镓或铟取代B作为P型掺杂剂，或者采用P作为N型掺杂剂。但这些方法均存在着生产成本增加的缺点，因此不利于工业化生产。近几年出现一种光照下加热的方法，但需要几十分钟至几小时不等，不适宜量产。At present, light-induced degradation (LID) refers to the phenomenon that the efficiency of crystalline silicon solar cells decreases after being exposed to light. It is most obvious on P-type monocrystalline cells, and the attenuation ratio can reach 3%-7% relative to The second is polycrystalline, which is also between 1% and 1.5%. Taking a common standard commercial 60-cell polycrystalline module as an example, the cell efficiency is 17.5%, so the output power loss of the module due to the LID phenomenon is about 2.55W-4W between. The monocrystalline P-type cell is much higher than this range. The currently generally accepted explanation is due to the B-O complex center. To eliminate this phenomenon, the method can be to reduce the content of B or O in the silicon wafer, replace B with gallium or indium as the P-type dopant, or use P as the N-type dopant. However, these methods all have the disadvantage of increased production cost, which is not conducive to industrial production. In recent years, a method of heating under light has emerged, but it takes tens of minutes to several hours and is not suitable for mass production.
发明内容Contents of the invention
本发明所要解决的技术问题是克服现有技术的缺陷，提供一种快速改善晶硅太阳电池光致衰减的量产装置，它能够节省光源和加热器件的使用数量，降低设备成本，有效地缩短对电池片的处理时间，增加其生产产能，降低了生产成本，满足产业化生产的需求。The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a mass production device for rapidly improving the light-induced attenuation of crystalline silicon solar cells, which can save the number of light sources and heating devices used, reduce equipment costs, and effectively shorten the The processing time of the battery sheet increases its production capacity, reduces the production cost, and meets the needs of industrialized production.
为了解决上述技术问题，本发明的技术方案是：一种快速改善晶硅太阳电池光致衰减的量产装置，包括保温箱体、多个光源、多个加热器件和放置电池片的电池片传送带，电池片传送带设置在保温箱体内，并且电池片传送带为圆形或U形结构，多个光源分布在电池片传送带的上方以便用于照射电池片传送带上的电池片，多个加热器件安装在保温箱体内，并且分布在电池片传动带的下方以便用于加温电池片传送带上的电池片。In order to solve the above technical problems, the technical solution of the present invention is: a mass production device for rapidly improving the light-induced attenuation of crystalline silicon solar cells, including an insulated box, multiple light sources, multiple heating devices, and a cell conveyor belt for placing cells , the cell conveyor belt is set in the insulated box, and the cell conveyor belt is a circular or U-shaped structure, a plurality of light sources are distributed above the cell conveyor belt for illuminating the cells on the cell conveyor belt, and multiple heating devices are installed on the Inside the heat preservation box, and distributed below the battery slice conveyor belt for heating the battery slices on the battery slice conveyor belt.
进一步提供了电池片传送带的具体尺寸，所述的电池片传送带为圆形结构时，其半径为0.5m～5m；所述的电池片传送带为U形结构时，其U形总长0.5m～10m，电池片传送带的U形部位的半径为0.5m～5m。The specific size of the battery sheet conveyor belt is further provided. When the battery sheet conveyor belt is a circular structure, its radius is 0.5m-5m; when the battery sheet conveyor belt is a U-shaped structure, its U-shaped total length is 0.5m-10m , The radius of the U-shaped part of the cell conveyor belt is 0.5m to 5m.
进一步限定了一种最佳的使用光源以便达到最优的光照效果，所述的光源强度范围为1*103w/m2～3*106w/m2。An optimal light source is further defined in order to achieve an optimal lighting effect, and the intensity range of the light source is 1*10 3 w/m 2 -3*10 6 w/m 2 .
进一步，所述的光源为LED灯或卤素灯或Flash灯。Further, the light source is an LED lamp or a halogen lamp or a Flash lamp.
进一步，所述的加热器件为加热电阻丝。Further, the heating device is a heating resistance wire.
进一步限定了一种最佳的加热器件以便达到最优的加热效果，所述的加热器件的加热温度范围为200℃～350℃。An optimal heating device is further defined in order to achieve an optimal heating effect, and the heating temperature range of the heating device is 200°C to 350°C.
采用了上述技术方案后，该装置设备简单，操作容易，适合流水线生产，且圆形或U形的电池片传送带的设计可以节省光源和加热器件的使用数量，降低设备成本；采用光照下加热的方法对电池片进行免接触式改善电池片光致衰减的特性，并通过进一步对光照强度和加热温度的优化，可以有效地缩短对电池片的处理时间，最快可以达到秒的量级，从而增加产能，降低生产成本，满足产业化生产的需求。After adopting the above technical scheme, the device has simple equipment, easy operation, and is suitable for assembly line production, and the design of the circular or U-shaped cell conveyor belt can save the number of light sources and heating devices used, and reduce equipment costs; The method is to improve the light-induced attenuation characteristics of the cell without contact, and by further optimizing the light intensity and heating temperature, the processing time of the cell can be effectively shortened, and the fastest can reach the order of seconds, thereby Increase production capacity, reduce production costs, and meet the needs of industrialized production.
附图说明Description of drawings
图1为本发明的快速改善晶硅太阳电池光致衰减的量产装置的立体图。FIG. 1 is a perspective view of a mass production device for rapidly improving light-induced attenuation of crystalline silicon solar cells according to the present invention.
具体实施方式Detailed ways
为了使本发明的内容更容易被清楚地理解，下面根据具体实施例并结合附图，对本发明作进一步详细的说明。In order to make the content of the present invention more clearly understood, the present invention will be further described in detail below based on specific embodiments and in conjunction with the accompanying drawings.
如图1所示，一种快速改善晶硅太阳电池光致衰减的量产装置，包括保温箱体2、多个光源3、多个加热器件4和放置电池片的电池片传送带1，电池片传送带1设置在保温箱体2内，并且电池片传送带1为圆形或U形结构，多个光源3分布在电池片传送带1的上方以便用于照射电池片传送带1上的电池片，多个加热器件4安装在保温箱体2内，并且分布在电池片传动带1的下方以便用于加温电池片传送带1上的电池片。该装置可以置于烧结工艺步骤之后电池分选之前，该装置当然也可以同烧结工艺相结合，即在烧结工艺中添加光源3。As shown in Figure 1, a mass production device for rapidly improving the light-induced attenuation of crystalline silicon solar cells includes an insulated box 2, a plurality of light sources 3, a plurality of heating devices 4, and a cell conveyor belt 1 for placing cells. The conveyor belt 1 is arranged in the insulated box 2, and the cell conveyor belt 1 has a circular or U-shaped structure, and a plurality of light sources 3 are distributed above the cell conveyor belt 1 for illuminating the cells on the cell conveyor belt 1. The heating device 4 is installed in the heat preservation box 2 and distributed under the battery slice conveyor belt 1 for heating the battery slices on the battery slice conveyor belt 1 . The device can be placed after the sintering process step and before cell sorting, and of course the device can also be combined with the sintering process, that is, the light source 3 is added in the sintering process.
电池片传送带1为圆形结构时，其半径为0.5m～5m；电池片传送带1为U形结构时，其U形总长0.5m～10m，电池片传送带的U形部位的半径为0.5m～5m。When the battery sheet conveyor belt 1 is a circular structure, its radius is 0.5m~5m; when the battery sheet conveyor belt 1 is a U-shaped structure, the total length of the U shape is 0.5m~10m, and the radius of the U-shaped part of the battery sheet conveyor belt is 0.5m~ 5m.
光源3强度范围为1*103w/m2～3*106w/m2。The intensity of the light source 3 ranges from 1*10 3 w/m 2 to 3*10 6 w/m 2 .
光源3为LED灯或卤素灯或Flash灯。The light source 3 is an LED lamp or a halogen lamp or a Flash lamp.
加热器件4为加热电阻丝。The heating device 4 is a heating resistance wire.
加热器件4的加热温度范围为200℃～350℃。The heating temperature of the heating device 4 ranges from 200°C to 350°C.
本发明的工作原理如下：The working principle of the present invention is as follows:
该装置设备简单，操作容易，适合流水线生产，且圆形或U形的电池片传送带1的设计可以节省光源3和加热器件4的使用数量，降低设备成本；采用光照下加热的方法对电池片进行免接触式改善电池片光致衰减的特性，并通过进一步对光照强度和加热温度的优化，可以有效地缩短对电池片的处理时间，最快可以达到秒的量级，从而增加产能，降低生产成本，满足产业化生产的需求。The device is simple in equipment, easy to operate, suitable for assembly line production, and the design of the circular or U-shaped cell conveyor belt 1 can save the number of light sources 3 and heating devices 4 used, and reduce equipment costs; the method of heating cells under light is adopted. The non-contact method improves the light-induced attenuation characteristics of the cell, and by further optimizing the light intensity and heating temperature, the processing time of the cell can be effectively shortened, and the fastest can reach the order of seconds, thereby increasing production capacity and reducing production cost to meet the needs of industrialized production.
以上所述的具体实施例，对本发明解决的技术问题、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本发明的具体实施例而已，并不用于限制本发明，凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。The specific embodiments described above have further described the technical problems, technical solutions and beneficial effects solved by the present invention in detail. It should be understood that the above descriptions are only specific embodiments of the present invention and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
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| CN104810309A (en) * | 2015-04-25 | 2015-07-29 | 北京金晟阳光科技有限公司 | Roller way type solar cell sintering and radiation annealing integrated continuous furnace |
| CN104868010A (en) * | 2015-03-03 | 2015-08-26 | 晶澳（扬州）太阳能科技有限公司 | Method for reducing light induced attenuation of P type crystalline silicon solar cells and assemblies thereof by using strong light irradiation |
| CN105140347A (en) * | 2015-09-21 | 2015-12-09 | 中节能太阳能科技（镇江）有限公司 | Mass-production apparatus capable of fast improving photoinduced degradation of a P-type crystalline silicon cell and using method thereof |
| CN105261677A (en) * | 2015-11-18 | 2016-01-20 | 浙江晶科能源有限公司 | Method for rapid light-induced degradation of solar cell piece |
| CN105552173A (en) * | 2016-02-19 | 2016-05-04 | 常州天合光能有限公司 | Method and device for eliminating light-induced degradation of B-doped crystal silicon solar cell |
| CN105765738A (en) * | 2014-10-17 | 2016-07-13 | Tp太阳能公司 | Method and apparatus for reducing light-induced degradation of solar cells |
| CN106328758A (en) * | 2016-08-23 | 2017-01-11 | 苏州阿特斯阳光电力科技有限公司 | Illumination furnace |
| CN106784134A (en) * | 2016-11-25 | 2017-05-31 | 罗雷 | A kind of device for improving crystal silicon solar battery photo attenuation |
| TWI596795B (en) * | 2015-10-23 | 2017-08-21 | 茂迪股份有限公司 | Method for suppressing photo-induced attenuation of solar cells, method for manufacturing solar cell for reducing photo-attenuation, and process for manufacturing solar cell |
| CN104810309B (en) * | 2015-04-25 | 2018-02-09 | 北京金晟阳光科技有限公司 | Roller bed type solar cell sinters and radiation annealing one continuous oven |
| CN108369970A (en) * | 2015-09-23 | 2018-08-03 | 商先创国际股份有限公司 | The method and apparatus of defect in passivated semiconductor substrate |
| CN109379045A (en) * | 2018-11-27 | 2019-02-22 | 中节能太阳能科技（镇江）有限公司 | A kind of device and method detecting crystal silicon battery photo attenuation |
| CN110829979A (en) * | 2019-11-19 | 2020-02-21 | 浙江正泰太阳能科技有限公司 | Photoinduced attenuation testing device |
| WO2020221399A1 (en) * | 2019-04-29 | 2020-11-05 | Meyer Burger (Germany) Gmbh | Method of production of silicon heterojunction solar cells with stabilization step and production line section for the stabilizing step |
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| CN105765738A (en) * | 2014-10-17 | 2016-07-13 | Tp太阳能公司 | Method and apparatus for reducing light-induced degradation of solar cells |
| US9780252B2 (en) | 2014-10-17 | 2017-10-03 | Tp Solar, Inc. | Method and apparatus for reduction of solar cell LID |
| CN104868010A (en) * | 2015-03-03 | 2015-08-26 | 晶澳（扬州）太阳能科技有限公司 | Method for reducing light induced attenuation of P type crystalline silicon solar cells and assemblies thereof by using strong light irradiation |
| CN104810309A (en) * | 2015-04-25 | 2015-07-29 | 北京金晟阳光科技有限公司 | Roller way type solar cell sintering and radiation annealing integrated continuous furnace |
| CN104810309B (en) * | 2015-04-25 | 2018-02-09 | 北京金晟阳光科技有限公司 | Roller bed type solar cell sinters and radiation annealing one continuous oven |
| CN105140347A (en) * | 2015-09-21 | 2015-12-09 | 中节能太阳能科技（镇江）有限公司 | Mass-production apparatus capable of fast improving photoinduced degradation of a P-type crystalline silicon cell and using method thereof |
| CN105140347B (en) * | 2015-09-21 | 2017-03-08 | 中节能太阳能科技（镇江）有限公司 | Mass production device and method for rapidly improving light-induced attenuation of p-type crystalline silicon cells |
| CN108369970A (en) * | 2015-09-23 | 2018-08-03 | 商先创国际股份有限公司 | The method and apparatus of defect in passivated semiconductor substrate |
| TWI596795B (en) * | 2015-10-23 | 2017-08-21 | 茂迪股份有限公司 | Method for suppressing photo-induced attenuation of solar cells, method for manufacturing solar cell for reducing photo-attenuation, and process for manufacturing solar cell |
| CN105261677A (en) * | 2015-11-18 | 2016-01-20 | 浙江晶科能源有限公司 | Method for rapid light-induced degradation of solar cell piece |
| CN105261677B (en) * | 2015-11-18 | 2017-08-25 | 浙江晶科能源有限公司 | A kind of method of the quick photo attenuation of solar cell piece |
| CN105552173A (en) * | 2016-02-19 | 2016-05-04 | 常州天合光能有限公司 | Method and device for eliminating light-induced degradation of B-doped crystal silicon solar cell |
| CN106328758B (en) * | 2016-08-23 | 2018-01-23 | 苏州阿特斯阳光电力科技有限公司 | Illumination stove |
| CN106328758A (en) * | 2016-08-23 | 2017-01-11 | 苏州阿特斯阳光电力科技有限公司 | Illumination furnace |
| CN106784134A (en) * | 2016-11-25 | 2017-05-31 | 罗雷 | A kind of device for improving crystal silicon solar battery photo attenuation |
| CN109379045A (en) * | 2018-11-27 | 2019-02-22 | 中节能太阳能科技（镇江）有限公司 | A kind of device and method detecting crystal silicon battery photo attenuation |
| WO2020221399A1 (en) * | 2019-04-29 | 2020-11-05 | Meyer Burger (Germany) Gmbh | Method of production of silicon heterojunction solar cells with stabilization step and production line section for the stabilizing step |
| US20220149225A1 (en) * | 2019-04-29 | 2022-05-12 | Meyer Burger (Germany) Gmbh | Method of production of silicon heterojunction solar cells with stabilization step and production line section for the stabilizing step |
| CN110829979A (en) * | 2019-11-19 | 2020-02-21 | 浙江正泰太阳能科技有限公司 | Photoinduced attenuation testing device |
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Application publication date: 20141001 |