High-resistance mechanical load solar energy battery component and manufacturing method thereof

A technology of solar cells and solar cells, which is applied in electrical components, circuits, photovoltaic power generation, etc., can solve the problems of high conversion efficiency that cannot be fully reflected and high power loss, and achieve optimized battery layout, reduced operation and maintenance costs, and failure The risk reduction effect of

Pending Publication Date: 2017-05-31
JA SOLAR TECH YANGZHOU +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When using these high-efficiency double-sided cells to make modules, if you still use the conventional ribbon interconnection technology, you can imagine that the power loss from the cell to the module will be high, and the high conversion efficiency obtained at the cell side cannot be obtained at the module side. fully reflected, so people are also looking for various solutions to improve the power of solar cell modules

Method used

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  • High-resistance mechanical load solar energy battery component and manufacturing method thereof
  • High-resistance mechanical load solar energy battery component and manufacturing method thereof
  • High-resistance mechanical load solar energy battery component and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The high mechanical load resistance solar cell assembly provided in this embodiment includes a cover plate material, EVA and / or POE, battery strings, EVA and / or POE and a backsheet material, and the battery strings are formed by connecting multiple battery strings, The battery string is composed of a plurality of small cells connected in series. The small cells are cut from p-type solar cells. After cutting, a number of small cells with the same width are obtained. The length and width of each small cell are different. (each A small battery sheet) includes long sides and short sides, and the length and width of the cover material are different, and its (cover material) also includes long sides and short sides.

[0035] Among them, the p-type solar cell adopts a right-angle p-type conventional polycrystalline cell with single-sided light transmission. The front side of the cell is the emitter, and the back side is the aluminum back field. The length and width of the p-typ...

Embodiment 2

[0046] The structure of the solar cell assembly with high mechanical load resistance provided in this example is the same as that in Example 1, the difference is that this example uses a p-type conventional back passivated cell to make the assembly, the front side of the cell is the emitter, and the back side is the local contact Back passivation structure, the battery slices are connected in series along the direction parallel to the long side of the small battery slices.

[0047] Among them, the p-type solar cell adopts a right-angle p-type conventional back passivation cell with single-sided light transmission. The front side of the cell is the emitter, and the back side is a partial contact back passivation structure. The size is 156mm×156mm.

[0048] Cut each solar cell into 2 small cells (of the same size), where the length and width of each small cell after cutting are inconsistent, including the long side and the short side, the size of the long side is 156mm, and the ...

Embodiment 3

[0057] The structure of the solar cell module with high mechanical load resistance provided in this example is the same as that in Example 1, the difference is that this example uses an n-type double-sided light-transmitting round corner single crystal cell, and the specific size is 156.75mm×156.75mm , to make components, the positive and negative electrodes of the battery are distributed on the front and back of the battery, and the front and back of the battery are respectively provided with 4 busbars, and the serial connection direction of the battery is parallel to the short side of the small battery.

[0058] Cut each solar cell into two small cells of the same size. The length and width of each small cell after cutting are inconsistent, including the long side and the short side. The width of the long side is 156.75mm, and the width of the short side is 78.38mm.

[0059] The distance between two adjacent small cells is 5mm.

[0060] The cut 12 small battery pieces are c...

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Abstract

The invention discloses a high-resistance mechanical load solar energy battery component, comprising a cover plate material, an EVA and/or POE, a battery string group, an EVA and/or POE and a back plate material; the battery string group is formed by connecting multiple battery strings, and the battery string is formed by linking multiple small battery pieces in series; the small battery pieces are formed by cutting p type or n type solar battery pieces; after cutting, several small battery pieces with consistent width are acquired; the length and width of every small battery piece are different, and every small battery piece comprises a long side and a short side; the length and width of the cover plate material are also different, and the cover plate material also comprises a long side and a short side. The high-resistance mechanical load ability is greatly improved, power is also largely promoted, and the power generation cost is low. The invention further discloses a manufacturing method of the high-resistance mechanical load solar energy battery component.

Description

technical field [0001] The invention belongs to the technical field of solar cell components, and in particular relates to a solar cell component with high resistance to mechanical load and a manufacturing method thereof. Background technique [0002] The most direct way for humans to obtain energy is to use solar energy, and solar photovoltaic cells are one of the most effective ways to convert solar energy into electrical energy. In recent years, the world output of solar cells has grown at an annual rate of 30-40%, becoming one of the fastest-growing industries in the market, among which crystalline silicon solar cells have gradually matured and occupied a dominant position in the market. [0003] With the development of crystalline silicon solar cell technology, the thickness of silicon wafers is gradually reduced to reduce the cost of photovoltaic power generation, but the thinning of silicon wafers brings about the increase of fragmentation rate in the production of co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/05H01L31/18
CPCH01L31/0504H01L31/1804Y02E10/547Y02P70/50
Inventor 周艳方陈宏月蒋秀林李令先尹海鹏单伟
Owner JA SOLAR TECH YANGZHOU
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