Solar battery coating equipment and coating method

A technology for solar cells and coating equipment, which is applied in the manufacture of circuits, electrical components, and final products. It can solve the problems of electroplating grid stripping, low nucleation density of metal films, and lack of timely replenishment of electroplating cations, etc., to reduce resistance, The effect of improving density

Inactive Publication Date: 2014-12-03
WUXI SUNTECH POWER CO LTD
View PDF5 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] An important reason why the electroplating grid is easy to peel off at the nickel-silicon interface is that a DC power supply is used for electroplating during electroplating. Since the cations continue to obtain electrons in the area to be plated and form on the area to be plated, the electroplating cations near the ar

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
  • Solar battery coating equipment and coating method
  • Solar battery coating equipment and coating method
  • Solar battery coating equipment and coating method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] specific implementation plan

[0030] The purpose and effects of the present invention will be described in detail below in conjunction with specific embodiments and accompanying drawings.

[0031] see figure 2 , which shows a schematic diagram of the composition and structure of the first embodiment of the solar cell coating equipment of the present invention, the solar cell coating equipment includes a coating tank 1, a metal rod 2, a solar cell transmission module 3 to be coated and a pulse excitation source 4. The solar cell coating equipment is used to coat the area to be coated on the light-receiving surface of the solar cell 5 to be coated, that is, the electrode area. The negative electrode and the positive electrode of the solar cell are respectively arranged on the light-receiving surface and the backlight surface of the solar cell 5 to be coated. In this embodiment, the pulse excitation source 4 is a pulse power supply P1.

[0032] In this embodiment, the...

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 provides solar battery coating equipment and a coating method. A direct-current power supply and/or a constant-brightness light source is adopted to irradiate electroplating in the prior art, a hole is easily formed in an electroplating grid, and the silicon contact surface is small, so that easy stripping from silicon is caused, and the resistance is higher. The solar battery coating equipment comprises a coating groove for accommodating electroplating solution, a plating solar battery transmission module for horizontally transmitting a plating solar battery with a downward light receiving surface, and a pulse excitation source for inputting pulse electroplating electric energy to the plating solar battery or synchronously inputting and exciting the pulse electroplating electric energy to the plating solar battery; and a plating area of the plating solar battery is coated through the pulse electroplating electric energy. The solar battery coating equipment can use the pulse electroplating electric energy to improve the coating quality so as to improve the adhesion strength of the plated grid and reduce the series resistance, and correspondingly improves the efficiency and quality of the solar battery.

Description

technical field [0001] The invention relates to the field of solar cell manufacturing, in particular to a solar cell coating device and a coating method. Background technique [0002] In the field of silicon solar cell manufacturing, the metallization process is a very important key process, which directly forms the electrodes that extract the electric energy generated by the silicon solar cell and has a greater impact on the efficiency of the silicon solar cell. In the current large-scale silicon solar cell manufacturing, screen printing is usually used to print silver paste on the front side of silicon solar cells to form grids, but the price of silver is relatively high, which becomes a bottleneck for further reducing the cost of solar cells; The silver grid formed by screen printing has a low aspect ratio, which results in a larger area of ​​the light-receiving surface of the silicon solar cell being shielded by the grid, and in addition, a larger series resistance of th...

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): C25D5/18C25D7/00H01L31/0224H01L31/18
CPCY02P70/50
Inventor 钱洪强陈丽萍陈如龙杨健朱景兵
Owner WUXI SUNTECH POWER CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap