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A low-cost aluminum-based photovoltaic ribbon and its preparation method

A technology for photovoltaic ribbons and aluminum substrates, applied in the direction of metal material coating process, coating, fusion spraying, etc., can solve the problems of insufficient connectivity, affect the efficiency of photovoltaic ribbons, increase production costs, etc., and achieve simple structure , Uniform coating, improve the effect of heat dissipation

Active Publication Date: 2022-01-25
安徽宝德光伏科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that in the prior art, during the preparation of photovoltaic ribbons, the cladding process and the tinning process work separately, and the connection between the two is not enough, which affects the photovoltaic ribbon. The efficiency of the preparation of the ribbon increases the production cost, and a low-cost aluminum-based photovoltaic ribbon and its preparation method are proposed

Method used

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  • A low-cost aluminum-based photovoltaic ribbon and its preparation method
  • A low-cost aluminum-based photovoltaic ribbon and its preparation method
  • A low-cost aluminum-based photovoltaic ribbon and its preparation method

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Effect test

Embodiment 1

[0050] see Figure 1-4 As shown, a low-cost aluminum-based photovoltaic ribbon, including an aluminum core 2, an outer copper strip 23, and a tin layer 24;

[0051] The outer wall of the aluminum core 2 is covered with an outsourcing copper strip 23 through the coating device, and the outer wall of the outsourcing copper strip 23 is sprayed with a tin layer 24 through the spraying and drying device 9;

[0052] The coating device, the limiting device 8 and the spraying and drying device 9 are arranged side by side, and the coating device, the limiting device 8 and the spraying and drying device 9 are all installed on the top surface of the base 1 through the support rod 3 .

[0053] The cladding device includes a bearing seat 4, a hollow tube 5, a connecting rod 6, a winding wheel 7 and a driving mechanism; the outer wall of the hollow tube 5 is provided with a bearing seat 4, and the bearing seat 4 is installed on the support rod 3, and the middle One end of the empty pipe 5 ...

Embodiment 2

[0071] Compared with embodiment 1, the difference is:

[0072] Step 1: Add the aluminum material into the melting furnace, and add graphene at 800°C for mixing, and then cool to room temperature to obtain the aluminum core 2;

[0073] The preparation process of graphene comprises the following steps:

[0074] S1. Add graphite powder, potassium persulfate and phosphorus pentoxide to concentrated sulfuric acid, and stir for 4 hours at a temperature of 80°C; obtain mixture A; control the quality of graphite powder, potassium persulfate, phosphorus pentoxide and concentrated sulfuric acid The ratio is 5:5:5:13;

[0075] S2. Cool mixture A to room temperature, mix with deionized water and stir at 0°C for 10 hours to obtain mixture B; then filter mixture B, wash with deionized water, and dry to obtain solid C; control A The mass ratio of mixture and deionized water is 30:1000;

[0076] S3. Disperse the C solid in concentrated sulfuric acid, then add potassium permanganate five ti...

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Abstract

The invention discloses a low-cost aluminum-based photovoltaic welding strip, which includes an aluminum core, an outer-wrapped copper strip, and a tin layer; the outer wall of the aluminum core is covered with an outer-wrapped copper strip through a coating device, and the outer wall of the outer-wrapped copper strip is dried by spraying The device is sprayed with a tin layer; the hollow tube is rotated, and the winding wheel is also rotated accordingly, so that the outsourcing copper strip is evenly sleeved on the aluminum core; the coated aluminum core enters the spraying and drying device, first, The tin liquid is input into the inner cavity of the spray pipe along the feed pipe, and sprayed out from the spray hole, and sprayed on the side wall of the outer copper strip; the aluminum core with the tin liquid enters the heating tube, and the electric heating coil The aluminum core is heated so that the tin liquid solidifies to form a tin layer on the outsourcing copper strip; the semi-finished photovoltaic welding strip is obtained, and then the semi-finished photovoltaic welding strip is wire-drawn to form a base layer; thereby the photovoltaic welding strip is prepared; The welding strip is automatically processed, which greatly improves the production efficiency and saves the manufacturing cost.

Description

technical field [0001] The invention belongs to the technical field of aluminum-based photovoltaic welding strips, and relates to a photovoltaic welding strip and a preparation method thereof, in particular to a low-cost aluminum-based photovoltaic welding strip and a preparation method thereof. Background technique [0002] Welding ribbons are mainly used for welding between battery panels in photovoltaic components. [0003] Reference document CN109728118A discloses a low-current soldering strip, which is flat or circular in cross-section. The low-current soldering strip includes a base layer and a tin layer. The base layer includes an aluminum core and copper clad on the surface of the aluminum core. There are two methods for preparing low-current soldering strips, one is the copper welding method, and the other is the electrolytic copper-clad method. The present invention uses copper-clad aluminum alloy instead of pure copper as the low-current soldering strip in the pho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/10C22C21/00C23C4/08C23C4/123C01B32/184
CPCC22C1/1036C22C21/00C23C4/08C23C4/123C01B32/184C22C1/1047
Inventor 崔振荣赵志平
Owner 安徽宝德光伏科技有限公司
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