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Application of pressure-sensitive electric conduction adhesive film in photovoltaic imbrication battery assembly and application method

A technology of conductive adhesive film and battery components, applied in photovoltaic power generation, pressure-sensitive film/sheet, electrical components, etc., to achieve the effects of reducing costs, improving conversion efficiency, and facilitating collection and conduction

Inactive Publication Date: 2019-07-30
SUZHOU VERYBOND MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide the application and application method of pressure-sensitive conductive adhesive film in photovoltaic shingled battery components, so as to solve the problem that in the prior art, the connection between the cells of photovoltaic shingled components basically relies on welding tape or conductive glue. There are technical and application problems

Method used

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  • Application of pressure-sensitive electric conduction adhesive film in photovoltaic imbrication battery assembly and application method
  • Application of pressure-sensitive electric conduction adhesive film in photovoltaic imbrication battery assembly and application method
  • Application of pressure-sensitive electric conduction adhesive film in photovoltaic imbrication battery assembly and application method

Examples

Experimental program
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Effect test

Embodiment 1

[0027] (1) Preparation of pressure-sensitive conductive adhesive film: 52wt% conductive particles mixed in acrylic glue, the conductive particles are 7μm silver powder, 52μm copper powder and 2μm gold powder mixed according to the weight ratio of 3:7:1, mix well Finally, coat it on the release paper or film, control the coating thickness to 50um, and the coating speed to 3m / min. After curing at 60°C for 15 minutes, die-cutting and punching processing are carried out, and the length is 140mm, and the width is 1.2mm. Strip die-cut pieces, and neatly placed on the release paper and rolled up;

[0028] (2) Bonding of photovoltaic shingled battery module cells: the back silver and front silver parts of the adjacent cells of the photovoltaic shingled battery module are bonded with a pressure-sensitive conductive adhesive film, and a pressure of 5PSI is applied at the same time. Fix, repeat this bonding process, arrange all the cells in columns and connect them in series in a shingle...

Embodiment 2

[0030] (1) Preparation of pressure-sensitive conductive adhesive film: Mix 60wt% conductive particles into the acrylic glue. After uniformity, coat on the release paper or release film, control the coating thickness to 150um, UV cure at 365nm wavelength for 10s, and then die-cut and die-cut to make a strip die-cut piece with a length of 145mm and a width of 1mm , and neatly placed on the release film and rolled up;

[0031] (2) Bonding of photovoltaic shingled battery module cells: the back silver and front silver parts of the adjacent cells of the photovoltaic shingled battery module are bonded with a pressure-sensitive conductive adhesive film, and a pressure of 7PSI is applied at the same time. Fix, repeat this bonding process, arrange all the cells in columns and connect them in series in a shingled manner.

Embodiment 3

[0033] (1) Preparation of pressure-sensitive conductive adhesive film: Mix 40wt% silver-plated nickel powder with a particle size of 30 μm in the rubber glue, mix evenly, and coat on the release paper or film, and control the coating thickness to 200um, coating speed 20m / min, 160°C curing for 11min, then die-cutting and stamping processing to make a strip-shaped die-cut piece with a length of 155mm and a width of 0.7mm, and place it neatly on the release paper for winding. have to.

[0034] (2) Bonding of photovoltaic shingled battery module cells: the back silver and front silver parts of the adjacent cells of the photovoltaic shingled battery module are bonded with a pressure-sensitive conductive adhesive film, and a pressure of 13PSI is applied at the same time. Fix, repeat this bonding process, arrange all the cells in columns and connect them in series in a shingled manner.

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Abstract

The invention relates to the field of encapsulation application of imbrication battery assemblies, in particular to application of a pressure-sensitive electric conduction adhesive film in a photovoltaic imbrication battery assembly and an application method. According to the application, the back silver and front silver parts of the edges of two imbrication battery pieces are pasted together through the pressure-sensitive electric conduction adhesive film, pressure of 5-15 PSI is applied to the back silver and front silver parts for fixing, the pasting process is repeated, and all required battery pieces are in serial connection. The pressure-sensitive electric conduction adhesive film is applied to the photovoltaic imbrication battery assembly, the battery pieces are firmly pasted, and after pasting, the current generated by the battery pieces is conveniently collected and conducted and efficiently gathered at bus bars of the battery pieces; the problems of pseudo soldering and uneven pasting caused when electric conduction glue and other connection modes are used are solved, and the conversion efficiency of the photovoltaic imbrication battery assembly is improved.

Description

technical field [0001] The invention relates to the application field of encapsulation of shingled battery components, in particular to the application and application method of a pressure-sensitive conductive adhesive film in photovoltaic shingled battery components. Background technique [0002] Using solar power as a clean energy source can reduce carbon dioxide emissions, so solar cells are highly praised by various countries and regions. The shingled battery module is to closely connect the battery sheets in a superimposed manner, so more battery sheets can be laid to increase the solar absorption area of ​​the battery module and improve the conversion efficiency of the photovoltaic module. At present, the connection between cells of photovoltaic shingled modules on the market basically relies on welding ribbon or conductive glue to realize the connection, but there are technical and application problems. Using welding ribbon to connect, because the welding ribbon has n...

Claims

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Application Information

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IPC IPC(8): C09J7/10C09J7/38C09J9/02C09J121/00C09J133/04C09J183/04C09J11/04H01L31/05
CPCC08K2003/0806C08K2003/0831C08K2003/085C08K2003/0862C09J7/10C09J7/38C09J7/383C09J7/385C09J9/02C09J11/04C09J121/00C09J133/04C09J183/04C09J2203/322C09J2203/33C09J2301/302C09J2301/312C09J2301/314C09J2301/408H01L31/0512C08K9/10C08K3/08Y02E10/50
Inventor 张立伟赵立萍
Owner SUZHOU VERYBOND MATERIALS CO LTD