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Busbarless crystalline silicon cell and its application

A crystalline silicon cell and cell technology, applied in circuits, electrical components, photovoltaic power generation, etc., can solve problems such as cell area waste, avoid waste, reduce shading area, and increase power generation per unit area.

Active Publication Date: 2021-09-24
CHANGZHOU SHICHUANG ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0007] In the shingling method, one of the two adjacent cells will block the other cell, which will cause a waste of cell area

Method used

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  • Busbarless crystalline silicon cell and its application
  • Busbarless crystalline silicon cell and its application
  • Busbarless crystalline silicon cell and its application

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Embodiment Construction

[0030] The specific implementation manners of the present invention will be further described below in conjunction with the drawings and examples. The following examples are only used to illustrate the technical solutions of the present invention more clearly, but not to limit the protection scope of the present invention.

[0031] Such as figure 1 and figure 2 As shown, the present invention provides a busbar-free crystalline silicon battery sheet, which is rectangular as a whole, and the battery sheet includes a pair of sides parallel to each other: the first side line 101 and the second side line 102; the first side line 101 and the second side line 102 The second side line 102 is the long side of the battery sheet; the four corners of the battery sheet are right angles (the four corners of the battery sheet can also be rounded); the back of the battery sheet is provided with a back electrode;

[0032] The front of the battery sheet is provided with a plurality of first ...

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Abstract

The invention provides a busbar-free crystalline silicon cell, a cell string and a solar cell module using the cell. The present invention can reduce the shading area on the front of the battery sheet, thereby increasing the power generation per unit area of ​​the battery sheet and the module; the present invention can maximize the laying density of the battery sheet in the battery string in the horizontal direction; The use of shingling technology causes the problem that one of the two adjacent cells blocks the other cell, that is, to avoid the waste of cell area caused by the use of shingling technology.

Description

technical field [0001] The invention relates to a crystalline silicon battery sheet without main grid and its application. Background technique [0002] Solar cell modules (also called solar panels, photovoltaic modules) are the core part of the solar power generation system. The solar cell module contains battery strings, and the battery strings are composed of a plurality of crystalline silicon cells laid in series in sequence. [0003] The front of the crystalline silicon cell is generally equipped with wider busbars and thinner fine grids. The busbar increases the shading area of ​​the front of the cell, which will reduce the power generation per unit area of ​​the cell and the module. [0004] In addition, two adjacent battery slices in the battery string are generally connected in series through conductive connectors. The conductive connectors extend from the front of one battery slice to the back of the other battery slice, and the conductive connectors penetrate the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/05H01L31/0224
CPCH01L31/022433H01L31/0508Y02E10/50
Inventor 常振宇符黎明绪欣曹育红
Owner CHANGZHOU SHICHUANG ENERGY CO LTD
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