Unlock instant, AI-driven research and patent intelligence for your innovation.

Improved electrode structure of solar cell

An electrode structure and solar cell technology, applied in circuits, electrical components, semiconductor devices, etc., can solve the problems of inability to match the diffusion resistance, difficulty in large-scale manufacturing, and increase in manufacturing costs, so as to facilitate large-scale production , Conducive to silver paste consumption and cost saving effect

Inactive Publication Date: 2012-07-25
JA SOLAR TECH YANGZHOU
View PDF4 Cites 22 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this electrode grid design can no longer match the increasing diffusion resistance, which has become a bottleneck for improving the efficiency of solar cells
Another development direction is represented by high-efficiency batteries such as PERL, EWT, and N-TYPE, which integrate advanced technologies and high-quality raw materials such as laser opening, ion implantation, selective emitter, and N-type silicon. The introduction of these technologies The efficiency of solar cells has been improved, but at the same time, the manufacturing cost has also been greatly increased, and strict technical requirements have been put forward, making it difficult to achieve mass production.

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
  • Improved electrode structure of solar cell
  • Improved electrode structure of solar cell
  • Improved electrode structure of solar cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The solar cell electrode structure of the present invention includes electrode grid lines, the electrode grid lines are composed of busbar lines and thin grid lines, the number of busbar lines is 4, the busbar lines are symmetrically distributed around the silicon wafer, and the width of the busbar lines is 0.8-1.5mm, the distance between the main grid lines is 30-40mm, and the 5-8mm parts at both ends of the main grid lines are designed with sharp corners; the number of thin grid lines is 80-100, and the thin grid lines are perpendicular to the main grid lines and parallel, etc. Pitch distribution, the width of the fine grid lines is 0.04-0.08mm, and the spacing of the fine grid lines is 1.5-2.0mm. see Figure 4 , the electrode design of the present invention will be described in detail by taking a polysilicon solar cell with a size of 156x156 as an example, but the present invention is not limited thereto. Those of ordinary skill in the technical field can realize th...

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

PropertyMeasurementUnit
Widthaaaaaaaaaa
Login to View More

Abstract

The invention discloses an improved electrode structure of a solar cell. A design of four grid lines matching with dense thin grid lines is adopted, the main grid lines and the thin grid lines are thinned, loss of current during transmission is effectively reduced under the condition that the shading area is unaffected, a fill factor FF of the solar cell is increased, and accordingly the conversion efficiency of the solar cell is remarkably enhanced. Besides, power loss of follow-up components during manufacture is reduced advantageously.

Description

technical field [0001] The invention relates to the field of solar cell manufacturing technology, in particular to the improvement of electrode structure under the condition of screen printing technology. Background technique [0002] As a new type of clean energy, photovoltaic power generation has the advantages of low carbon, easy installation and maintenance, etc. However, its high cost of power generation has always restricted the development of this industry. Therefore, in order to compete with conventional energy sources, improving cell conversion efficiency and reducing manufacturing costs have become the key to competition in the current solar cell industry. [0003] At present, the industrial production of crystalline silicon solar cells mainly adopts screen-printed electrode technology. In order to form a good ohmic contact between the emitter region and the metal electrode, the emitter region needs to be heavily doped. However, heavy doping can easily lead to incr...

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
IPC IPC(8): H01L31/0224
Inventor 赵永乐宋锋兵
Owner JA SOLAR TECH YANGZHOU
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com