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Solar battery assembly and preparation method thereof

A technology of solar cells and batteries, which is applied in the field of solar cells, can solve the problems of increasing the risk of component battery short circuits and increasing the difficulty of repairing bad battery strings, and achieve the effects of avoiding glare effects, reducing power generation costs, and reducing internal resistance loss

Pending Publication Date: 2018-07-06
JA SOLAR TECH YANGZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, curing adds difficulty to the repair of bad battery strings
In addition, improper control of the amount of conductive adhesive in the glue package will increase the risk of short circuit of the module battery

Method used

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  • Solar battery assembly and preparation method thereof
  • Solar battery assembly and preparation method thereof
  • Solar battery assembly and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] The solar cell assembly provided in this embodiment sequentially includes a cover material, EVA and / or POE, battery strings, EVA and / or POE, and a back sheet material. The battery strings are formed by connecting multiple battery strings, and the battery strings are formed by A plurality of cells are connected in series, and the front electrode and the back electrode of each cell in the plurality of cells are all provided with a conductive material, the conductive material is a metal coating, and one of the adjacent two cells is The front electrode of the cell and the back electrode of another cell are connected in series directly through the metal coating.

[0070] The front electrode of one of the two adjacent battery sheets and the back electrode of the other battery sheet are directly connected in series by heating.

[0071] The temperature during heating is 80-500°C.

[0072] The metal coating can be deposited on the front electrode and / or the back electrode of th...

Embodiment 2

[0081]The solar cell assembly provided in this embodiment sequentially includes a cover material, EVA and / or POE, battery strings, EVA and / or POE, and a back sheet material. The battery strings are formed by connecting multiple battery strings, and the battery strings are formed by A plurality of cells are connected in series, and the front electrode and the back electrode of each cell in the plurality of cells are all provided with a conductive material, the conductive material is a metal coating, and one of the adjacent two cells is The front electrode of the cell and the back electrode of another cell are connected in series directly through the metal coating.

[0082] The front electrode of one of the two adjacent battery sheets and the back electrode of the other battery sheet are directly connected in series by heating.

[0083] The temperature during heating is 80-500°C.

[0084] The metal coating can be deposited on the front electrode and / or the back electrode of the...

Embodiment 3

[0094] The solar cell assembly provided in this embodiment sequentially includes a cover material, EVA and / or POE, battery strings, EVA and / or POE, and a back sheet material. The battery strings are formed by connecting multiple battery strings, and the battery strings are formed by A plurality of cells are connected in series, and the front electrode and the back electrode of each cell in the plurality of cells are all provided with a conductive material, the conductive material is a metal coating, and one of the adjacent two cells is The front electrode of the cell and the back electrode of another cell are connected in series directly through the metal coating.

[0095] The front electrode of one of the two adjacent battery sheets and the back electrode of the other battery sheet are directly connected in series by heating the metal coating.

[0096] The temperature during heating is 80-500°C.

[0097] The metal coating can be deposited on the front electrode and / or the ba...

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Abstract

The invention discloses a solar battery assembly comprising a cover plate material, an EVA and / or POE material, a battery string group, an EVA and / or POE material, and a backboard material. The battery string group is formed by series connection of a plurality of battery strings; each battery string is formed by series connection of a plurality of battery pieces; and conducting materials are arranged at front-side electrodes and / or back-side electrodes of all battery pieces locally or completely, wherein the conducting materials are metal coating or solid conducting resin; and the front-side electrode of one of each two adjacent battery pieces and the back-side electrode of the other battery piece are connected in series by the metal coating or solid conducting resin. According to the solar battery assembly, an interconnect material is applied to a battery end directly, so that usage of a solder strip or other conducting materials is reduced directly; the production efficiency of the same kind of assembly is improved; the internal resistance losses caused by the interconnect strip are reduced effectively; and the assembly power is improved and thus the power generation cost is lowered. In addition, the invention also discloses a preparation method of the solar battery assembly.

Description

technical field [0001] The invention belongs to the technical field of solar cells, and in particular relates to a solar cell module and a preparation method thereof. Background technique [0002] With the increasing awareness of human environmental protection, human beings continue to develop and utilize green energy, among which photovoltaic power generation is a kind of green energy that is relatively mature in research and widely used by people. 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, various high-efficiency cell technologies have gradually matured, such as full-back contact cells, double-sided passivated double-sided cells, HIT cells, etc. Compared with conventional cells, t...

Claims

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Application Information

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IPC IPC(8): H01L31/05H01L31/048
CPCH01L31/048H01L31/0504Y02E10/50
Inventor 陈宏月段光亮周艳方尹海鹏单伟
Owner JA SOLAR TECH YANGZHOU
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