Thus, this paper presents a preliminary analysis of the parameters and their interactions of the welding process (by parallel-gap resistance welding) of interconnections between solar cells using design of experiments. In this welding process, the cell undergoes a certain level of degradation.
The thickness of silicon wafer is 160 μm, the thickness of PV copper strip is 0.1 mm, the thickness of Sn alloy coating is 15 μm and 25 μm respectively. The physical properties of materials used in solar cell welding are shown in Table 6.
Connection of Cells in Photovoltaic Modules. As shown in Fig. 5, the solar cells in the modules with different surface structures of welding strips have no cracks, and there is no open welding, false welding and desoldering, which indicates that it can be used for the subsequent research.
The ununiform temperature field, mismatched thermal expansion coefficient and local plastic deformation during welding are the root causes of residual welding stress. The influence of welding process on the yield of solar cells has been discussed above.
The quality of welding strip will directly affect the current collection efficiency of photovoltaic module, so it has a great impact on the power of photovoltaic module. The so-called photovoltaic welding strip is to coat binary or ternary low-melting alloy on the surface of copper strip with given specification.
This technique helps in optimizing the best adjustments to obtain the expected results. Thus, this paper presents a preliminary analysis of the parameters and their interactions of the welding process (by parallel-gap resistance welding) of interconnections between solar cells using design of experiments.
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A 2D thermal–electrical–mechanical coupled axisymmetric model was established to simulate the behavior of the parallel gap resistance welding (PGRW) process …
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Parallel-gap resistance welding of silicon solar cells with copper inter- connects results in complex microstructural variations that depend on the weld- ing variables.
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Thus, this paper presents a preliminary analysis of the parameters and their interactions of the welding process (by parallel-gap resistance welding) of interconnections …
The invention relates to an electromagnetic wave welding device for solar cells, comprising a worktable, a hold-down mechanism, a controller and a power supply source, wherein the …
As the welding time progresses, full contact between the interconnect foil and the surface electrode of the GaAs solar cell leads to a stabilization of the overall resistance in …
The adhesive layer is located on the welding strip on the front of the solar cell, which reflects the light from the reflective film to the surface of the solar cell to increase the …
Thus, this paper presents a preliminary analysis of the parameters and their interactions of the welding process (by parallel-gap resistance welding) of interconnections …
interconnection of crystalline solar thE aUthoRs cells to modules is a critical step in photo-voltaic module production. The typical tabbing and stringing process requires complex handling of …
The electromagnetic valve welding method and the electromagnetic valve welding for the solar cells have the advantages of high heating speed, high production efficiency,...
The invention relates to an electromagnetic wave welding device for solar cells, comprising a worktable, a hold-down mechanism, a controller and a power supply source, wherein the solar...
Parallel-gap resistance welding of silicon solar cells with copper inter- connects results in complex microstructural variations that depend on the weld- ing variables.