Back-contact stacked solar cell string, manufacturing method thereof, and stacked solar cell module
A technology of solar cells and solar cells, applied in the direction of electrical components, final product manufacturing, sustainable manufacturing/processing, etc., to achieve the effect of simple structure, high reliability, and simplified stacking process
Active Publication Date: 2022-03-08
LONGI SOLAR TECH (TAIZHOU) CO LTD
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- Application Information
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Problems solved by technology
[0004] The electrodes of the existing back-contact solar cells are all set on the back of the cells, which cannot be directly stacked and arranged like traditional crystalline silicon solar cells, and the positive and negative electrodes of adjacent cells are connected by conductive glue to form a battery string.
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[0018] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for ease of description, only parts related to the invention are shown in the drawings.
[0019] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.
[0020] One of the embodiments of the present invention is, please refer to Figure 1-3 , the manufacturing method of the back contact laminated solar cell string of the present invention, comprises the following steps:
[0021] Form several through holes on one side edge of the back contact solar...
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The present application discloses a back-contact laminated solar cell string and its manufacturing method, and a laminated solar cell module, including the following steps: forming several through holes on one side edge of the back-contact solar cell sheet, and the through holes are along the The thickness direction of the back contact solar cell sheet runs through the back contact solar cell sheet; the positive electrode paste and the negative electrode paste are printed on the back side of the back contact solar cell sheet, and the positive electrode paste and the negative electrode paste are printed drying to form a positive electrode precursor and a negative electrode precursor; sequentially overlapping and arranging a plurality of back contact solar cell sheets so that two adjacent back contact solar cell sheets have overlapping areas, and all the back contact solar cell sheets located below The through hole of the back contact solar cell sheet is located in the overlapping area; the positive electrode precursor, the negative electrode precursor and the perforated electrode precursor are sintered together to obtain the positive electrode, the negative electrode and the perforated electrode. The laminated process flow is simplified, and the structure is simple.
Description
technical field [0001] The present invention generally relates to the field of photovoltaics, specifically to the field of back-contact solar cell components, and in particular to a back-contact stacked solar cell string, a manufacturing method thereof, and a stacked solar cell component. Background technique [0002] Stacked module (also called shingled module) technology is a new type of module design scheme. The battery sheets are superimposed and arranged, and connected into a battery string through conductive glue, solder paste and other materials, and then after series-parallel typesetting, the layers Pressed into components. By improving the interconnection structure design of the cells, more cells can be arranged in a limited area, improving the utilization of the space area and the power generation of the components. [0003] At present, back-contact solar cells (such as IBC, MWT, and EWT solar cells) have received widespread attention. Since there are no busbars o...
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IPC IPC(8): H01L31/05H01L31/18
CPCH01L31/0504H01L31/0508H01L31/0516H01L31/18Y02E10/50Y02P70/50
Inventor 刘继宇李华
Owner LONGI SOLAR TECH (TAIZHOU) CO LTD