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Bar-shaped solar battery piece, solar battery, photovoltaic module and manufacturing method thereof

A technology for solar cells and photovoltaic modules, applied in the fields of photovoltaic power generation, electrical components, and final product manufacturing, can solve the problem of limited power generation of photovoltaic modules, and achieve the effect of eliminating the gap between the sheets and reducing the split rate.

Pending Publication Date: 2021-03-05
CSI CELLS CO LTD +1
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  • Abstract
  • Description
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Problems solved by technology

[0002] At present, there is a certain distance between two adjacent photovoltaic cells in conventional photovoltaic modules, which limits the power generation per unit area of ​​photovoltaic modules.

Method used

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  • Bar-shaped solar battery piece, solar battery, photovoltaic module and manufacturing method thereof
  • Bar-shaped solar battery piece, solar battery, photovoltaic module and manufacturing method thereof
  • Bar-shaped solar battery piece, solar battery, photovoltaic module and manufacturing method thereof

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Embodiment Construction

[0054] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0055] Such as figure 1 As shown, a photovoltaic module generally includes a five-layer structure, from top to bottom: a light-transmitting front plate (such as glass) 1, an encapsulating film 2, a solar cell 3, an encapsulating film 4, and a back plate (such as glass) 5. After the five-layer structure is vacuumized, heated, and laminated, the encapsulation film 2 and 4 are cross-linked and cured, so that the five-layer structure is firmly bonded together, and the aluminum frame and junction box are added and sealed with silica gel. After that, a conventional photovoltaic module is produced. The solar cell 3 can be a monocrystalline silicon cell or a polycrystalline silicon cell, and two adjacent solar cells 3 are electrically connected by a wel...

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Abstract

The invention provides a strip-shaped solar battery piece, a solar battery, a photovoltaic module and a manufacturing method of the strip-shaped solar battery piece. The strip-shaped solar cell comprises a semiconductor substrate and a bus electrode arranged on the surface of the semiconductor substrate, the semiconductor substrate comprises a first edge and a second edge which are opposite to each other, and at least one of the first edge and the second edge is a non-linear edge formed by cell segmentation. The non-linear edge is provided with protruding parts and concave parts which are arranged alternately, and the bus electrodes point to the concave parts. Compared with the prior art, the photovoltaic module can realize the electrical connection of the adjacent strip-shaped solar cellsby enabling the solder strips to penetrate through the concave parts, and has the advantages of reducing the edge stress of the cells, improving subfissure, reducing the material cost, improving thelight utilization rate and the like.

Description

technical field [0001] The invention relates to a strip-shaped solar battery sheet, a solar battery, a photovoltaic module and a manufacturing method thereof, belonging to the field of photovoltaics. Background technique [0002] At present, there is a certain distance between two adjacent photovoltaic cells in conventional photovoltaic modules, which limits the power generation per unit area of ​​photovoltaic modules. [0003] For this reason, it is the development trend of the industry to reduce the inter-chip pitch or even completely eliminate the inter-chip pitch. Contents of the invention [0004] In the first aspect, the object of the present invention is to provide a strip-shaped solar cell and solar cell, so as to reduce or even eliminate the distance between the cells and improve the power generation efficiency of the module. [0005] To achieve the above object, the present invention provides a strip-shaped solar cell, comprising a semiconductor substrate and a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/0224H01L31/042H01L31/05H01L31/18
CPCH01L31/022425H01L31/042H01L31/0508H01L31/1876Y02E10/50Y02P70/50
Inventor 黄甫阳董经兵梅玲潘秀娟陈辉许涛
Owner CSI CELLS CO LTD
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