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Photovoltaic solder strip, manufacturing method, solar cell string and solar cell module

A technology for solar cells and photovoltaic ribbons, applied in the fields of photovoltaic power generation, electrical components, circuits, etc., can solve the problems of increased internal resistance, multi-cell light receiving area, affecting the power of components, etc., to improve the conversion rate and improve the conversion rate. , the effect of the simple method

Pending Publication Date: 2018-11-06
WUXI AUTOWELL TECH
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Problems solved by technology

[0004] In order to solve the problem in the related art that thin round ribbons will lead to an increase in internal resistance and affect the power of the module, while flat ribbons will occupy more of the light-receiving area of ​​the cell and will also affect the power of the generated modules. The application provides a photovoltaic ribbon and its manufacturing method, a solar cell string and a solar cell module

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  • Photovoltaic solder strip, manufacturing method, solar cell string and solar cell module
  • Photovoltaic solder strip, manufacturing method, solar cell string and solar cell module
  • Photovoltaic solder strip, manufacturing method, solar cell string and solar cell module

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Embodiment Construction

[0028] The exemplary embodiments will be described in detail here, and examples thereof are shown in the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the present invention. Rather, they are merely examples of devices and methods consistent with some aspects of the present invention as detailed in the appended claims.

[0029] In order to improve the conversion rate of the solar cell module, this application has specially designed the soldering ribbon in the solar cell module. Combine below Figure 1A to Figure 3 Examples of solar cell modules, solar cell strings and photovoltaic ribbons are given.

[0030] The solar cell module provided in this application includes an interconnection bar and at l...

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Abstract

The invention discloses a photovoltaic solder strip, a manufacturing method, a solar cell string and a solar cell module, and belongs to the technical field of photovoltaic cells. The photovoltaic solder strip comprises at least one group of a first solder strip section and a second solder strip section with same shape; each of the first solder strip section and the second solder strip section comprises a base and a tin layer coated outside the base respectively; the cross sections of the first solder strip and the second solder strip are not rectangles respectively; each of the first solder strip and the second solder strip is provided with a curved surface used for light reflection; and each solder strip section overturns by 180 degrees relative to the corresponding to the correspondingfirst solder strip section. The photovoltaic solder strip is arranged into two solder strip sections which overturn by 180 degrees relatively and are of same shape, so that after the two solder stripsections are welded to two connected cell pieces, the light-reflecting curved surfaces of the two solder strip sections can realize the function of light reflection, the conversion rate of the photovoltaic solder strip is improved, and just the corresponding solder strip section needs to overturn when the solder strip is generated, so that a method for producing the photovoltaic solder strip withthe characteristics is simple and high in efficiency.

Description

Technical field [0001] The invention belongs to the technical field of photovoltaic cells, and relates to a photovoltaic ribbon and a manufacturing method, a solar cell string and a solar cell component. Background technique [0002] Conventional photovoltaic cells, such as monocrystalline silicon cells, polycrystalline silicon cells, N-type cells, HIT (heterojunction cells), etc., all have a positive and negative electrode structure design. The front electrode includes two functional parts, namely the thin grid line and the bus electrode (also called the main grid line). The thin grid line is used to collect the photo-generated current, which is then collected on the bus electrode and then exported; the back electrode includes the back electric field and the back The bus electrode, the back electric field is used for back passivation and reflection; the back bus electrode and the front bus electrode are arranged symmetrically up and down, and the number positions are the same. W...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/05H01L31/054
CPCH01L31/0508H01L31/0516H01L31/0547Y02E10/52
Inventor 李文褚召远陈云
Owner WUXI AUTOWELL TECH
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