Method for overlapping sliced battery slices

An overlapping method and cell technology, which is applied in the direction of circuits, photovoltaic power generation, electrical components, etc., can solve the problems of increased crack rate at the overlap of cells, and solve the problem of easily occurring cracks, reduce the rate of cracks, and reduce the Effect of possibility of deformation and cracking

Active Publication Date: 2019-08-16
LONGI SOLAR TECH (TAIZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after the cells are overlapped and welded, the rate of hidden cracks at the overlap of the cells increases during the lamination process.

Method used

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  • Method for overlapping sliced battery slices
  • Method for overlapping sliced battery slices

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Embodiment Construction

[0013] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for ease of description, only parts related to the invention are shown in the drawings.

[0014] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0015] Please refer to figure 1 and 2 , the overlapping method of sliced ​​cells of the present invention comprises the following steps:

[0016] Stack the ribbon 13 and the second battery slice 14 sequentially on the first battery slice 11, so that the orthographic projections of the first batt...

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Abstract

The application discloses a method for overlapping sliced battery slices, comprising the step of successively stacking a solder strip and a second sliced battery slice on a first sliced battery slicesuch that the orthographic projection the first sliced battery slice and the orthographic projection of the second sliced battery slice on a plane where the solder strip is located have an overlappingarea, wherein the solder strip is located between the first sliced battery slice and the second sliced battery slice, the non-cut surface of the first sliced battery slice and the cut surface of thesecond sliced battery slice are located in the overlapping area, and the negative electrode of the first sliced battery slice and the negative electrode of the second sliced battery slice are facing upward. The method can reduce the possibility of deformation and cracking of the sliced battery slices during a lamination process, and reduce the cracking rate of the sliced battery slices.

Description

technical field [0001] The present invention generally relates to the field of photovoltaics, specifically to the field of cell interconnection, and in particular to a method for overlapping sliced ​​cells. Background technique [0002] At present, half photovoltaic cells are cut into half cells by dicing machine. The cutting part of the cell is the cut surface, and the opposite surface is the non-cut surface. Photovoltaic half-cell module is a product that is connected by welding ribbon. The battery string is formed by welding the ribbon from the front of the cell to the back of the adjacent cell by soldering in series, and a certain spacing between the connected cells is set (spacing > 0mm) . There are photovoltaic half-cell modules with inter-sheet spacing in the industry. When welding, the ribbon extends from the front of the half-sheet to the back of the adjacent sheet. The ribbon has both cutting and non-cutting surfaces at the end of the front. [0003] With the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/18H01L31/05
CPCH01L31/0504H01L31/188Y02E10/50Y02P70/50
Inventor 李明明冯均
Owner LONGI SOLAR TECH (TAIZHOU) CO LTD
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