Solar cell electrode machining method and device

A solar cell and electrode processing technology, applied in the direction of sustainable manufacturing/processing, circuits, electrical components, etc., can solve the problems of affecting the photoelectric conversion efficiency of solar cells, long distribution distance, large series resistance, etc., to reduce the shading area, The effect of small series resistance and stable performance

Active Publication Date: 2011-10-05
JIAWEI RENEWABLE ENERGY CO LTD
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Problems solved by technology

In this process, the front of the battery is generally two wide confluence strips, the series resistance is large, the distributio

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  • Solar cell electrode machining method and device
  • Solar cell electrode machining method and device
  • Solar cell electrode machining method and device

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Embodiment Construction

[0032] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0033] Such as Figure 1 to Figure 3 Shown, a kind of solar cell electrode processing method, it comprises the following steps:

[0034] Step 1: printing silver electrodes on the back of the solar cell 203, and then drying;

[0035] Step 2: Brush an aluminum electric field on the back of the solar cell 203 printed with silver electrodes, and then dry it;

[0036] Step 3: printing horizontal silver grid lines 401 on the front side of the solar cell 203;

[0037] Step 4: The manipulator places the solar cell that has completed the above steps on the jacking mechanism 204, and places it in the center;

[0038] Step 5: The clamping mechanism 201 intercepts the resistance wire 202 dipped in silver paste from the autom...

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Abstract

The invention relates to a solar cell electrode machining device, which comprises a jacking mechanism for jacking a solar cell, a wire clamping mechanism for fixing resistance wires, and an automatic wire feeding device for feeding the resistance wires into the wire clamping mechanism, wherein the automatic wire feeding device comprises an automatic wire feeding mechanism, a silver paste soaking device, an upper and lower wire drawing device, a wire shearing and pressing device and a lead fixing device which are connected in turn. The invention also relates to a solar cell electrode machiningmethod. The invention has the advantages that: the resistance wires are directly sintered on the positive side of the cell to form bus bars, have low series resistance, and are densely distributed, the shading area is reduced, the performance is more stable, and the photoelectric conversion efficiency of the solar cell is improved.

Description

technical field [0001] The invention relates to a solar cell electrode processing method and device. Background technique [0002] Silicon semiconductor is currently the most widely used solar cell material with the most mature technology, but its processing cost is still high. Reducing costs and improving conversion efficiency by optimizing the process is still the focus of research in the solar energy industry. [0003] For a cell of the same size, theoretically speaking, the denser the grid lines on the front, the better the current collection effect and the higher the photoelectric conversion efficiency, but too many grid lines will increase the shading area of ​​the cell and reduce the conversion efficiency. efficiency. For cells of different sizes and shapes, various research institutions and enterprises are looking for the optimal electrode processing method to obtain the highest conversion efficiency and reduce costs. [0004] At present, the processing technology...

Claims

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Application Information

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IPC IPC(8): H01L31/18
CPCY02P70/50
Inventor 李雳丁蓓
Owner JIAWEI RENEWABLE ENERGY CO LTD
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