A kind of manufacturing method of half-cell photovoltaic module
A manufacturing method and half-cell technology, applied in photovoltaic power generation, electrical components, semiconductor devices, etc., can solve problems such as expensive, incomplete solar photovoltaic cells, and cost reduction
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Embodiment 1
[0053] Select the solar battery sheet 100 in the prior art, divide the middle of the solar battery sheet 100 in the prior art into two, or remove the incomplete part in the solar battery sheet 100 in the prior art to obtain a total of 72 half-cell sheets 200, divide These 72 semi-solar cells are in accordance with Figure 4 The arrangement is 4 columns × 18 rows = 72 pieces, and 18 half-cells 200 in each column are connected in series to form a small series, then two adjacent small series are connected in parallel to form a medium series, and then two adjacent medium series are connected in series It is a large string, thus forming a half-cell photovoltaic module. Using the same batch of 36 prior art solar cells 100 connected in series to form a photovoltaic module, compare the electrical performance of the photovoltaic module assembled with half cells, the relevant technical parameters are shown in the table below, from which it can be seen that the two The open-circuit volt...
Embodiment 2
[0058] refer to Figure 7 , select 100 interdigitated back-contact solar cells of the same specification with a size of 125mm×125mm in the prior art, randomly select 50 of them, and connect them in series according to the arrangement of 5 columns×10 rows=50 pieces to form the existing technology for photovoltaic modules; see Figure 8 , take the same batch of solar cell sheets 100 and divide them into two or remove the incomplete parts in the prior art solar cell sheet 100 to obtain a total of 100 half-cell sheets 200, and divide these 100 half-solar cells according to Figure 8 The arrangement is 10 columns × 10 rows = 100 pieces, and 10 pieces of half-cells in each row are connected in series to form a small series, then two adjacent small series are connected in parallel to form a medium series, and then two adjacent medium series are connected in series to form a Large strings form a half-cell photovoltaic module. Comparing the electrical performance of photovoltaic modu...
Embodiment 3
[0061] refer to Figure 9 , select 100 polycrystalline solar cells of the same batch in the prior art with a size of 156mm×156mm, randomly select 60 pieces of them, and connect them in series according to the arrangement of 6 columns×10 rows=60 pieces Figure 9 The prior art solar cell photovoltaic module shown; cf. Figure 10 , in addition, divide the middle of the solar battery sheet of the prior art into two, or remove the incomplete part in the solar battery sheet 100 of the prior art to obtain figure 2 The 120 half-cells 200 shown, these 120 half-cells 200 according to Figure 10 The arrangement is 6 columns × 20 rows = 120 pieces, and 20 half-cells in each column are connected in series to form a small series, then two adjacent small series are connected in parallel to form a medium series, and then three adjacent medium series are connected in series to form a A large string constitutes a half-cell photovoltaic module.
[0062] Optionally, 120 half cells are also av...
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