Back contact solar cell module and manufacturing method thereof
A technology for a solar cell and a manufacturing method, applied in the field of solar cells, can solve problems such as component failure, and achieve the effects of reducing processing costs, increasing power supply, and optimizing structure
Pending Publication Date: 2022-02-11
LONGI SOLAR TECH (TAIZHOU) CO LTD
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Problems solved by technology
[0002] At present, the application of back-contact solar cells is more and more extensive. A common back-contact solar cell module includes a backsheet layer, an EVA layer, a conductive layer, and a back-contact cell layer arranged sequentially from bottom to top. The back contact battery sheet is electrically connected. With this structure, the transmission of electric energy can be realized, and the conductive layer can be encapsulated through the backplane layer and the EVA layer to realize the insulation and sealing of the component. However, due to the water vapor of the EVA layer The rate is high, and water vapor easily penetrates from the EVA layer into the conductive layer and the back contact cell layer, and contacts with the electrodes and other components, resulting in component failure
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[0032] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention 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 the present invention, not to limit the present invention.
[0033] It should be noted that when an element is referred to as being “fixed” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0034] In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicate...
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Abstract
The invention discloses a back contact solar cell module and a manufacturing method thereof, relates to the technical field of solar cells, and aims to solve the problem that water vapor infiltrates from the back of the module to cause failure of the module. The back contact solar cell module comprises a backboard layer, a conductive layer, an insulating layer, a cell layer and a cover plate which are stacked, wherein the insulating layer is provided with a through hole, the conductive layer is electrically connected with the cell layer through an electric conductor arranged in the through hole, and a water-blocking coating is arranged between the backboard layer and the conductive layer, or a water-blocking film obtained by flash evaporation or silk-screen printing is arranged between the backboard layer and the conductive layer. The manufacturing method of the back contact solar cell module comprises the back contact solar cell module provided by the technical scheme. The back contact solar cell module provided by the invention is used for converting solar energy into electric energy for people to use.
Description
technical field [0001] The invention relates to the technical field of solar cells, in particular to a back-contact solar cell component and a manufacturing method thereof. Background technique [0002] At present, the application of back-contact solar cells is more and more extensive. A common back-contact solar cell module includes a backsheet layer, an EVA layer, a conductive layer, and a back-contact cell layer arranged sequentially from bottom to top. The back contact battery sheet is electrically connected. With this structure, the transmission of electric energy can be realized, and the conductive layer can be encapsulated through the backplane layer and the EVA layer to realize the insulation and sealing of the component. However, due to the water vapor of the EVA layer If the rate is high, water vapor easily penetrates from the EVA layer into the conductive layer and the back contact battery sheet layer, and contacts with the electrodes and other components in it, r...
Claims
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IPC IPC(8): H01L31/048H01L31/049H01L31/068H01L31/18
CPCH01L31/0481H01L31/049H01L31/0682H01L31/1804Y02E10/547Y02P70/50
Inventor 陈军唐洪李华刘继宇
Owner LONGI SOLAR TECH (TAIZHOU) CO LTD