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A method for reducing power loss in packaging of black silicon battery components

A battery component and power loss technology, applied in the field of solar cells, to reduce power loss, increase CTM value, and reduce power loss

Active Publication Date: 2021-11-26
HUNAN RED SUN PHOTOELECTRICITY SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The above method reduces the influence of different currents on power loss to a certain extent, but does not fundamentally solve the influence of current on the power of black silicon battery modules

Method used

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  • A method for reducing power loss in packaging of black silicon battery components
  • A method for reducing power loss in packaging of black silicon battery components
  • A method for reducing power loss in packaging of black silicon battery components

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Experimental program
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Effect test

Embodiment 1

[0024] like figure 2 with image 3 As shown, the method of reducing the power loss of the black silicon battery assembly, in the battery sheet of the same efficiency or total current component, the short-wave current of each battery is measured, and the battery in the same predetermined range is measured. The film is unified package, that is, the power in the same package assembly does not limit each other, thereby increasing the CTM value (the percentage of the output power of the component output and the total amount of power of the battery) to reduce the power loss.

[0025] In the present embodiment, when the current measurement of the battery sheet, the short-wave light source selects any light source of the light source or spectra of 300 to 500 nm, and the long-wave light source selects any light source or a spectrum similar to the spectral spectrum. Among them, the short-wave light source and the long wave light source are LED light or laser.

Embodiment 2

[0027] The difference from the embodiment is different from the selection of the light source in the current measurement. In the present embodiment, when the current measurement of the battery sheet is selected, the full-spectral light source is selected, and the different filter sheets are mounted in the corresponding position, and the light output of short waves and long waves is achieved. Specifically, the wavelength of the full-spectral light source is from 300-1100 nm, and a filter having a wavelength of 300-500 nm in the range of the short-wave source position is installed in the range of 500-1100 nm in the range of the long wave light source.

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Abstract

The invention discloses a method for reducing the power loss of black silicon cell assembly packaging. In cells with the same efficiency or total current, the short-wave current or long-wave current of each cell is measured, and the short-wave current or long-wave current is measured at the same pre-set level. The battery slices within the set range are packaged uniformly. The method of the invention has the advantages of reducing the power loss of the black silicon cell assembly package and being easy to operate.

Description

Technical field [0001] The present invention mainly relates to the technical field of solar cells, referring to a method of reducing the packaging power loss of black silicon battery packs. Background technique [0002] Compared to the ordinary polysilicon battery, the black silicon battery has better absorption characteristics and lower reflectance, which is more pronounced in the short wavelength range reflectivity, and has higher short-wave external quantum efficiency, so the short-wave incident light generates current The overall light current contribution is greater. Due to the unique spectral response characteristics of the black silicon battery, the current size of the current is more sensitive than the current size of the conventional battery. Even with the same current, the long wave, the short wave current composition is not the same, after the battery composed of different currents is packaged, since the light transmittance of the package glass and EVA in the short-wav...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/048H02S50/15
CPCH01L31/048H02S50/15Y02E10/50
Inventor 赵增超赵保星谢湘州黄嘉斌
Owner HUNAN RED SUN PHOTOELECTRICITY SCI & TECH