Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Solar cell and module group thereof

A technology of solar cells and hole groups, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems that the quality of the passivation layer is greatly affected and the function of the passivation layer is affected, so as to improve the current collection effect and improve the hole filling rate , good quality effect

Inactive Publication Date: 2014-07-09
MOTECH INDUSTRIES
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But relatively, the total area of ​​the linear openings 961' accounts for a larger area of ​​the entire passivation layer, that is to say, the area range of the plurality of second conductive parts of the back electrode is relatively large, and the back electrode The conductive paste has a great influence on the quality of the passivation layer, which will affect the function of the passivation layer

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 cell and module group thereof
  • Solar cell and module group thereof
  • Solar cell and module group thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that in the following description, similar elements are denoted by the same numerals.

[0027] refer to Figure 4 , Figure 5 The first preferred embodiment of the solar cell module of the present invention includes: a first plate 1 and a second plate 2 arranged up and down oppositely, and a plurality of arrays are arranged between the first plate 1 and the second plate 2 solar cells 3 , and at least one packaging material 4 located between the first plate 1 and the second plate 2 and wrapping around the plurality of solar cells 3 .

[0028] The implementation of the first plate 1 and the second plate 2 is not particularly limited, glass or plastic plates can be used, and the plate on the side of the light-receiving surface of the battery must be light-transmissive. The material of the packaging material 4 is, for example, light-perme...

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

Provided is a solar cell and a module group thereof. The cell includes a substrate having a light receiving side and a back side, a reflection resistance layer and a front-side electrode arranged on the light receiving side, a passivation layer arranged on the back side, and a back-side electrode. The passivation layer has a plurality of holes at intervals, and each hole has at least two extension sections which are intersected at one point. The back-side electrode is arranged on the passivation layer and is contacted with the back side via the plurality of holes. The current collection effect of the back-side electrode can be improved via the plurality of holes, the quality of the passivation layer can be maintained while sintering the back-electrode, and the filling rate of each hole can be improved, so that the quality of the sintered electric field on the partial back surface is better. Therefore, the open circuit voltage, short circuit current and photoelectric conversion efficiency of the cell can be improved.

Description

technical field [0001] The invention relates to a solar cell and its module, in particular to a silicon crystal solar cell and its module. Background technique [0002] refer to figure 1 , figure 2 , the known silicon solar cell mainly includes: a substrate 91 with a light-receiving surface 911 and a back surface 912 opposite to each other, an emitter layer 92 located at the light-receiving surface 911 , an anti-corrosion layer located on the emitter layer 92 Reflective layer 93, a front electrode 94 on the light-receiving surface 911, a plurality of local back surface fields (local back surface field, LBSF for short) 95 on the back 912, a passivation layer 96 on the back 912, And a back electrode 97 that can pass through the passivation layer 96 and contact the back surface 912 . [0003] The passivation layer 96 is used to fill and reduce surface defects of the substrate 91 , thereby reducing the recombination rate of carriers at the back surface 912 of the substrate 9...

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): H01L31/0224H01L31/0216H01L31/048
CPCY02E10/50H01L31/02167H01L31/022441H01L31/0516
Inventor 李昆儒刘浩伟赖俊文
Owner MOTECH INDUSTRIES
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
Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com