Back contact lamination solar cell string, manufacturing method thereof and lamination solar module
A technology for solar cells and solar cells, applied in electrical components, final product manufacturing, sustainable manufacturing/processing, etc., to achieve the effect of simplifying the lamination process, high reliability, and simple structure
Active Publication Date: 2019-10-11
TAIZHOU LERRISOLAR TECH CO LTD
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- Abstract
- Description
- Claims
- 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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Abstract
The invention discloses a back contact lamination solar cell string, a manufacturing method thereof and a lamination solar module. The manufacturing method comprises the following steps of forming a plurality of penetrating holes in an edge of one side of a back contact solar cell piece, wherein the penetrating holes penetrate through the back contact solar cell piece along a thickness direction of the back contact solar cell piece; printing positive paste and negative paste on a back surface of the back contact solar cell piece, and drying the positive paste and the negative paste to form a positive precursor and a negative precursor; sequentially arranging multiple back contact solar pieces in a lamination way so that an overlap region exists between two adjacent back contact solar pieces and the penetrating holes in the back contact solar piece arranged at a lower part are arranged in the overlap region; and integrally sintering and forming the positive precursor, the negative precursor and a penetrating hole electrode precursor to obtain a positive electrode, a negative electrode and a penetrating hole electrode. The lamination 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...
Claims
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Login to View More IPC IPC(8): H01L31/05H01L31/18
CPCH01L31/0504H01L31/0508H01L31/0516H01L31/18Y02E10/50Y02P70/50
Inventor 刘继宇李华
Owner TAIZHOU LERRISOLAR TECH CO LTD