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Main-grid-free crystalline silicon battery piece and application thereof

A technology of crystalline silicon cells and cells, applied in circuits, photovoltaic power generation, electrical components, etc., can solve problems such as waste of cell area, achieve the effects of increasing power generation, reducing shading area, and avoiding area waste

Active Publication Date: 2019-12-10
CHANGZHOU SHICHUANG ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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  • Main-grid-free crystalline silicon battery piece and application thereof
  • Main-grid-free crystalline silicon battery piece and application thereof
  • Main-grid-free crystalline silicon battery piece and application thereof

Examples

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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 solution 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 t...

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Abstract

The invention provides a main-grid-free crystalline silicon battery piece, and a battery string and a solar battery component using the battery piece. A shading area of a front surface of the batterypiece can be reduced so that a unit area power generating capacity of the battery piece and the component is improved. In the invention, a laying density of the battery pieces in the battery string can be maximized in a horizontal direction. In addition, a problem that one of two adjacent battery pieces shields the other battery piece due to adoption of an imbricate technology can be avoided, which means that wastes of the area of the battery piece due to the adoption of the imbricate technology are prevented.

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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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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