METALLIZATION AND STRINGING FOR BACK-CONTACT SOLAR CELLS
First Claim
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1. A string of solar cells comprising:
- a plurality of back-contact solar cells, wherein each of the plurality of back-contact solar cells comprises alternating P-type and N-type doped diffusion regions; and
a plurality of conductive wires disposed over a back surface of each of the plurality of solar cells, wherein each of the plurality of conductive wires is substantially parallel to the P-type and N-type doped diffusion regions of each of the plurality of solar cells;
wherein every other one of the plurality of conductive wires is cut in a region between each adjacent pair of the plurality of solar cells.
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Abstract
Metallization and stringing methods for back-contact solar cells, and resulting solar cells, are described. In an example, in one embodiment, a method involves aligning conductive wires over the back sides of adjacent solar cells, wherein the wires are aligned substantially parallel to P-type and N-type doped diffusion regions of the solar cells. The method involves bonding the wires to the back side of each of the solar cells over the P-type and N-type doped diffusion regions. The method further includes cutting every other one of the wires between each adjacent pair of the solar cells.
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Citations
20 Claims
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1. A string of solar cells comprising:
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a plurality of back-contact solar cells, wherein each of the plurality of back-contact solar cells comprises alternating P-type and N-type doped diffusion regions; and a plurality of conductive wires disposed over a back surface of each of the plurality of solar cells, wherein each of the plurality of conductive wires is substantially parallel to the P-type and N-type doped diffusion regions of each of the plurality of solar cells; wherein every other one of the plurality of conductive wires is cut in a region between each adjacent pair of the plurality of solar cells. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of electrically coupling solar cells, the method comprising:
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aligning conductive wires over back sides of adjacent solar cells, wherein the conductive wires are aligned substantially parallel to P-type and N-type doped diffusion regions of the solar cells; bonding the conductive wires to the back side of each of the solar cells over the P-type and N-type doped diffusion regions; and cutting every other one of the conductive wires between each adjacent pair of the solar cells. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A system for electrically coupling solar cells, the system comprising:
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a wire support to align conductive wires substantially parallel with P-type and N-type doped diffusion regions of each of the solar cells; a welder to bond the conductive wires to the back side of each of the solar cells over the P-type and N-type doped diffusion regions; and a cutter to sever every other one of the conductive wires between each adjacent pair of the solar cells. - View Dependent Claims (20)
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Specification