Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Solder strip and flexible solar cell module

A technology of solar cells and welding ribbons, applied in the field of solar cells, can solve problems affecting the stability of solar cells, lack of ductility, and hidden cracks in solar cells, so as to improve photoelectric conversion efficiency, overcome non-extensibility, and elastic recovery performance Good results

Inactive Publication Date: 2020-03-27
INST OF FLEXIBLE ELECTRONICS TECH OF THU ZHEJIANG +1
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, solar cell materials are usually inorganic materials, which do not have ductility and cannot complete large deformations, so their applications in wearable and other fields are still limited.
In addition, the packaging of traditional flexible solar cell components mainly uses flexible front film, encapsulant, flexible support materials, etc. to realize the flexibility of the cell component. During the deformation process, there are problems such as internal cracks in the solar cell, which will greatly affect the solar energy. Battery stability, resulting in efficiency attenuation or even component failure

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Solder strip and flexible solar cell module
  • Solder strip and flexible solar cell module
  • Solder strip and flexible solar cell module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] The welding ribbon 1 of this embodiment includes a first extension part 11 , a stretching part 13 and a second extension part 12 integrally formed. The stretching portion 13 is a curved segment structure, one end of the stretching portion 13 is connected to the first extension 11, the other end of the stretching portion 13 is connected to the second extension 12, and the first extension 11 and the second extension 12 collinear. Taking the connecting point of the stretching part 13 and the first extension part 11 as the origin of coordinates, the curve is a sinusoid with at least one complete period, and the period number of the sinusoid is K=1. The amplitude of the sinusoidal curve is A, the wavelength is λ, A:λ=1:5. The width of stretching portion 13 is d 1 , the widths of the first extension 11 and the second extension 12 are both d 2 , d 1 :D 2 =1:1.

Embodiment 2

[0074] The only difference between this embodiment and Embodiment 1 is that A:λ=2:5.

Embodiment 3

[0076] The only difference between this embodiment and Embodiment 1 is that A:λ=1:1.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a solder strip and a flexible solar cell module. The solder strip comprises a first extending part, a stretching part and a second extending part. The stretching part is of acurve segment structure, one end of the stretching part is connected to the first extending part, the other end of the stretching part is connected to the second extending part, the first extending part and the second extending part are collinear, and the curve segment is a sine curve segment of at least one complete period with the connecting point of the stretching part and the first extending part as the origin of coordinates. The flexible solar cell module comprises a flexible substrate, a plurality of solar cells and a flexible packaging film. The solar cells are arranged between the flexible substrate and the flexible packaging film, the plurality of solar cells are connected in series through the solder strips, the first extension parts and the second extension parts of the solder strips are connected to the electrodes of two adjacent solar cells, and the positive electrodes and the negative electrodes of the electrodes of the two adjacent solar cells are different. The flexiblesolar cell module adopting the solder strip provided by the invention realizes relatively large deformation effects such as extensibility, folding and the like of the module.

Description

technical field [0001] The invention relates to the field of solar cells, in particular to welding strips and flexible solar cell components. Background technique [0002] Traditional hard crystalline silicon solar cells dominate the photovoltaic market with the advantages of high efficiency, stability and low cost, and have become a conventional power source in the form of large-scale power stations, and are widely used in large-scale power stations and distributed photovoltaic power stations. However, traditional solar cell modules are usually rigid structures, generally using PET light-transmitting film (about 200 μm thick) + EVA layer (about 500 μm thick) + monocrystalline silicon wafer or polycrystalline silicon wafer (about 180 μm thick) + TPE backlight plate, which Surface density is usually 2.0 ~ 2.5kg / m 2 , resulting in a lack of flexibility in solar cell modules. [0003] In order to make solar cell modules flexible, traditional technologies usually thin solar ce...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/05
CPCH01L31/0508Y02E10/50
Inventor 冯雪蒋晔陈颖付浩然张柏诚刘兰兰王志建
Owner INST OF FLEXIBLE ELECTRONICS TECH OF THU ZHEJIANG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products