Unlock instant, AI-driven research and patent intelligence for your innovation.
Gallium arsenide thin film solar cell array for space and preparation method thereof
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology of thin-film solar cells and gallium arsenide, applied in circuits, electrical components, photovoltaic power generation, etc., can solve the problems that gallium arsenide thin-film solar cells are difficult to realize space applications, and achieve excellent space environment stability and high reliability Effect
Active Publication Date: 2021-06-04
SHANGHAI INST OF SPACE POWER SOURCES
View PDF8 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0006] The purpose of the present invention is to provide a gallium arsenide thin film solar cell array for space and its preparation method to solve the problem that gallium arsenide thin film solar cells are difficult to realize space applications due to the limitation of traditional packaging technology and packaging materials
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
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
preparation example Construction
[0029] A method for preparing a gallium arsenide thin-film solar cell array for space of the present invention comprises the following steps:
[0030] 1) Flexible substrate preparation: fix the flexible substrate integrated with the thin film electronic circuit on the negative pressure platform;
[0031] 2) Welding of single cells: use any one of resistance welding, ultrasonic welding and hot-press welding to conduct series and parallel welding of thin-film solar cells;
[0032] 3) Film glue coating: evenly coat liquid silicone rubber on the surface of the flexible substrate;
[0033] Further, the coating of the liquid silicone rubber is partially glued, the glued area is 0.05-0.85 times the area of each thin-film solar cell, and the glued thickness is 10-200 μm;
[0034] 4) Battery string patching: Lay thin-film solar cell strings on the surface of the coated liquid silicone rubber, and perform vacuum pressure curing;
[0035] Further, the pressure of the vacuum pressure ...
Embodiment
[0043] A gallium arsenide thin-film solar cell array for space, comprising a flexible substrate 1, silicon rubber 5, thin-film solar cell strings 10, transparent silicon rubber 3, and a flexible transparent packaging film 8 from bottom to top, the flexible substrate 1 is integrated with The thin-film electronic circuit 2 for power and signal transmission, the flexible substrate 1 is a fiber-reinforced flexible polyimide 7 composite film, and the flexible transparent packaging film is an oxide coating 12 prepared on the surface of a radiation-resistant transparent polymer 11 The composite film has a thickness of 12.5-100 μm and a light transmittance greater than 90%. The preparation method of gallium arsenide thin film solar cell array comprises the following steps:
[0044] 1) Flexible substrate preparation
[0045] Fix the flexible substrate 1 integrated with the thin-film electronic circuit 2 on the negative pressure platform, the thin-film electronic circuit 2 has reserved...
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
Property
Measurement
Unit
thickness
aaaaa
aaaaa
transmittivity
aaaaa
aaaaa
Login to View More
Abstract
The invention discloses a gallium arsenide thin-film solar cell array for space use and a preparation method thereof. The preparation method comprises the following steps: 1) coating liquid silicon rubber on the surface of a flexible substrate; 2) laying the thin-film solar cell array on the corresponding uncured 3) Coating liquid transparent silicone rubber on the surface of the thin film battery array area after vacuum pressure curing; 4) Laying the flexible transparent composite film on the corresponding uncured liquid transparent silicon rubber 5) Finally, after curing, scrub the excess glue and perform performance tests to complete the preparation of the flexible thin film solar cell array. The method of the present invention not only has the characteristics of high efficiency, light weight, flexibility, windability, and suitable for mounting on special-shaped curved surfaces, but also has excellent space environment stability and high reliability. The field of aircraft has a wide range of applications.
Description
technical field [0001] The invention belongs to the technical field of space power supplies, and in particular relates to a gallium arsenide thin-film solar battery array for space and a preparation method thereof. Background technique [0002] Space solar array is an important energy source for various aircraft, and its weight-to-weight ratio, flexibility, and rollability are crucial to the payload ratio, function, and launch cost of the aircraft. [0003] With the development of space technology, space vehicles put forward higher requirements for the performance of solar cell arrays, requiring the weight ratio power of the cell array to reach more than 300W / kg, light weight, flexible, and windable, etc. The existing solar cell arrays cannot meet its application Require. Gallium arsenide thin-film solar cells have ultra-high weight-to-weight power (≥2000W / kg), are flexible, and can be wound, but are limited by packaging materials and manufacturing technology, such as makin...
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
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More