CN204289473U - A kind of solar battery sheet grid line structure of positive electrode - Google Patents
A kind of solar battery sheet grid line structure of positive electrode Download PDFInfo
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- CN204289473U CN204289473U CN201420803141.2U CN201420803141U CN204289473U CN 204289473 U CN204289473 U CN 204289473U CN 201420803141 U CN201420803141 U CN 201420803141U CN 204289473 U CN204289473 U CN 204289473U
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Abstract
The utility model discloses a kind of solar battery sheet grid line structure of positive electrode, described grid line structure of positive electrode at least comprises 4 constitutional repeating units; Described constitutional repeating unit is regular hexagon structure, and there is a node center of each constitutional repeating unit; Described node location is provided with through hole, and the positive electrode tie point of cell backside is connected with the described node of front gate line by the electrocondution slurry in through hole; Be made up of several little equilateral triangles in described regular hexagon constitutional repeating unit grating figure, form branch's grid line, the same direction of branch's grid line is equidistantly parallel mutually.The beneficial effects of the utility model improve the photoelectric conversion efficiency of cell piece, reduces production cost.
Description
Technical field
The utility model relates to crystal silicon solar batteries sheet and manufactures field, relates to a kind of solar battery sheet grid line structure of positive electrode particularly.
Background technology
Along with the development of silicon solar cell technologies, solar energy has been the important channel solving energy crisis now.And further developing solar cell industry, the primary problem solved will reduce its production cost exactly, and the photoelectric conversion efficiency wherein improving solar battery sheet is one of Main Means reduced costs.At present, photovoltaic industry scholar research in this regard mainly concentrates on surperficial shading loss, the sunken aspect such as light and electrode contact, surface.Most of solar battery sheet producer adopts the method reducing grid line width to reduce surperficial shading, but thin grid line can reduce its photoelectric conversion efficiency because increasing Electrodes.
Metal electrode is the electronics collected by battery front side around logical (Metal Wrap Through is called for short MWT) solar cell by the metal transfer of filling in hole to cell backside, does not need the frontal design main gate line at battery.Therefore, there is larger area on MWT battery sheet surface to collect photon and to be translated into electric energy.This structure battery essentially eliminates the shading loss of main gate line electrode, make use of illuminating area more fully, improves the photoelectric conversion efficiency of cell piece; Meanwhile, also reduce component package difficulty, simplify preparation technology.Current MWT single battery efficiency can reach about 20%, and component efficiency can reach 17%, and its major advantage is to achieve coplanar assembled and reduce shading loss, can be applied to large-scale production.
Summary of the invention
The purpose of this utility model is to provide a kind of solar battery sheet grid line structure of positive electrode.
For achieving the above object, the technical solution that the utility model adopts is: a kind of solar battery sheet grid line structure of positive electrode, and described grid line structure of positive electrode at least comprises 4 constitutional repeating units; Described constitutional repeating unit is regular hexagon structure, and there is a node center of each constitutional repeating unit; Described node location is provided with through hole, and the positive electrode tie point of cell backside is connected with the described node of front gate line by the electrocondution slurry in through hole; Be made up of several little equilateral triangles in described regular hexagon constitutional repeating unit grating figure, form branch's grid line, the same direction of branch's grid line is equidistantly parallel mutually.
The beneficial effects of the utility model improve the photoelectric conversion efficiency of cell piece, reduces production cost.
Accompanying drawing explanation
A kind of solar battery sheet grid line structure of positive electrode figure that Fig. 1 the utility model provides.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail.
In this embodiment, as shown in Figure 1, a kind of solar battery sheet grid line structure of positive electrode, described grid line structure of positive electrode is made up of 20 constitutional repeating units; ; Described constitutional repeating unit is regular hexagon structure, and there is a node center of each constitutional repeating unit; Described node location is provided with through hole, and the positive electrode tie point of cell backside is connected with the described node of front gate line by the electrocondution slurry in through hole; Be made up of several little equilateral triangles in described regular hexagon constitutional repeating unit grating figure, form branch's grid line, the same direction of branch's grid line is equidistantly parallel mutually.
Wherein, the width on orthohexagonal six limits of described constitutional repeating unit is 80um; The width of branch's grid line that the equilateral triangle in described constitutional repeating unit is formed is 50um.
Prove by experiment, the technical scheme of a kind of solar battery sheet grid line structure of positive electrode that the utility model provides, the photoelectric conversion efficiency of the solar battery sheet of preparation is high, and production cost is low.
Claims (2)
1. a solar battery sheet grid line structure of positive electrode, is characterized in that: described grid line structure of positive electrode at least comprises 4 constitutional repeating units, and described constitutional repeating unit is regular hexagon structure, and there is a node center of each constitutional repeating unit; Be made up of several little equilateral triangles in described regular hexagon constitutional repeating unit grating figure, form branch's grid line, the same direction of branch's grid line is equidistantly parallel mutually.
2. a kind of solar battery sheet grid line structure of positive electrode according to claim 1, is characterized in that: described node location is provided with through hole, and the positive electrode tie point of cell backside is connected with the described node of front gate line by the electrocondution slurry in through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420803141.2U CN204289473U (en) | 2014-12-18 | 2014-12-18 | A kind of solar battery sheet grid line structure of positive electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420803141.2U CN204289473U (en) | 2014-12-18 | 2014-12-18 | A kind of solar battery sheet grid line structure of positive electrode |
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| Publication Number | Publication Date |
|---|---|
| CN204289473U true CN204289473U (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420803141.2U Active CN204289473U (en) | 2014-12-18 | 2014-12-18 | A kind of solar battery sheet grid line structure of positive electrode |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104465806A (en) * | 2014-12-18 | 2015-03-25 | 浙江鸿禧能源股份有限公司 | Positive electrode grid line structure of solar battery piece |
| CN109545870A (en) * | 2018-11-20 | 2019-03-29 | 浙江晶盛机电股份有限公司 | A kind of regular hexagon MWT solar battery sheet |
-
2014
- 2014-12-18 CN CN201420803141.2U patent/CN204289473U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104465806A (en) * | 2014-12-18 | 2015-03-25 | 浙江鸿禧能源股份有限公司 | Positive electrode grid line structure of solar battery piece |
| CN109545870A (en) * | 2018-11-20 | 2019-03-29 | 浙江晶盛机电股份有限公司 | A kind of regular hexagon MWT solar battery sheet |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |