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Anti-PID crystalline silicon solar cell module and preparation method thereof

A technology of solar cell components and polysilicon cells, applied in the direction of electrical components, semiconductor devices, circuits, etc., can solve problems such as prone to danger, achieve good results, eliminate PID attenuation, and overcome limitations and dangers

Active Publication Date: 2016-08-03
山东润马光能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another method is to install anti-PID equipment on the photovoltaic power station, that is, add a reverse high voltage to the photovoltaic module at night to drive out the migrated metal ions, but this method requires the installation of high-voltage equipment, which is prone to danger

Method used

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  • Anti-PID crystalline silicon solar cell module and preparation method thereof
  • Anti-PID crystalline silicon solar cell module and preparation method thereof
  • Anti-PID crystalline silicon solar cell module and preparation method thereof

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preparation example Construction

[0032] figure 2 It is the production process flow of the anti-PID crystalline silicon solar cell module. see figure 2 , the specific preparation method of anti-PID crystalline silicon solar cell module comprises the following steps:

[0033] Cell sorting: In order to connect cells with the same or similar performance in series, they should be sorted according to their performance parameters to increase the output power of the components.

[0034] Single-chip welding: it is to weld the tin-plated copper strip to the busbar on the front side (negative pole) of the battery first, and prepare to be connected in series with the positive pole of another battery.

[0035] String welding: Connect the batteries in series in sequence.

[0036] Lamination and confluence: After the back is connected in series and passed the inspection, the low-iron embossed tempered glass, battery string, cut EVA (encapsulation film), and figure 2 The layers are laid, and at the same time, the conf...

Embodiment 1

[0043] An anti-PID crystalline silicon solar cell component is composed of 60 pieces of 156mm×156mm polycrystalline silicon solar cells. The glass is 1640mm×990mm low-iron embossed tempered glass with a thickness of 3.2mm, and the glass is placed on the stacking table. Connect the positive and negative poles of 10 battery slices in sequence to form a battery string, a total of 6 strings. Place a piece of EVA on the glass with a thickness of 0.45mm. Place the above-mentioned 6 strings of battery strings side by side on the first piece of EVA. Connect the 6 strings of positive and negative electrodes in series, except for the positive and negative electrodes at the beginning and the end. Lead out separately, in order to prevent hot spots , Tin-plated copper strips are also used between every two strings. Then place a conductive protective ring around the outermost cell. The conductive protective ring is about 0.5mm away from the edge of the cell. Lead out the lead wires of the ...

Embodiment 2

[0055] An anti-PID crystalline silicon solar cell assembly is composed of 72 pieces of 156mm×156mm polycrystalline silicon solar cells. The glass is 1954mm×990mm low-iron embossed tempered glass with a thickness of 3.2mm, and the glass is placed on the stacking table. Connect the positive and negative poles of 10 battery slices in sequence to form a battery string, a total of 6 strings. Place a piece of EVA on the glass with a thickness of 0.45mm. Place the above-mentioned 6 strings of battery strings side by side on the first piece of EVA. Connect the 6 strings of positive and negative electrodes in series, except for the positive and negative electrodes at the beginning and the end. Lead out separately, in order to prevent hot spots , Tin-plated copper strips are also used between every two strings. Then place a conductive protective ring around the outermost cell. The conductive protective ring is about 0.5mm away from the edge of the cell. Lead out the lead wires of the c...

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Abstract

The invention relates to an anti-PID crystalline silicon solar cell module and preparation method thereof. He anti-PID crystalline silicon solar cell module includes low-iron patterned steel glass, a first packaging glue adhesive film, a whole battery piece, a second packaging glue film and a back plate, a conductive protection ring is arranged in the periphery of the battery piece, and the whole battery piece is formed by series connection of a plurality of battery pieces. When sunlight exists, each substring outputs DC high voltage, a positive electrode of the DC high voltage is connected with the conductive protection ring, thus the voltage of the conductive protection ring is positive relative to an aluminium frame of each component, a formed electric filed points to outside the glass from the protection ring, thereby fundamentally preventing metal ions in the glass from migrating towards the surface of the battery piece, and fundamentally solving the problem of PID existing in a crystalline silicon photovoltaic module, and the method is simple and practicable, is low in cost and has a good effect. The anti-PID crystalline silicon solar cell module and preparation method fundamentally eliminate PID of a crystalline silicon solar cell module, and overcome limitation and dangerouseness of existing methods.

Description

technical field [0001] The invention relates to a PID-resistant crystalline silicon solar cell assembly, in particular to a PID-resistant crystalline silicon solar cell assembly and a preparation method thereof. Background technique [0002] Crystalline silicon solar cell modules are the basic power generation components of photovoltaic power plants and the main component of the cost of photovoltaic power plants. Their reliability directly affects the reliability of photovoltaic power plant operation and investment income. Since the output voltage of a single photovoltaic module is less than 50 volts, in a power station, the modules are usually connected in series to form a substring to increase the operating voltage of the system, and then multiple substrings are connected in parallel through a combiner box to increase the output. current purpose. Then the high-voltage direct current output from the combiner box is converted into alternating current through the inverter. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/048H01L31/18H02S30/10
CPCH01L31/048H01L31/18H02S30/10Y02E10/50Y02P70/50
Inventor 杨宏王鹤
Owner 山东润马光能科技有限公司