Solar module interconnect

Patent metadata

Field	Value
Publication number	US-11784270-B2
Application number	US-202016859846-A
Country	US
Kind code	B2
Filing date	Apr 27, 2020
Priority date	Nov 26, 2014
Publication date	Oct 10, 2023
Grant date	Oct 10, 2023

Abstract

A solar module can include a first and second solar cell having front sides which face the sun during normal operation and back sides opposite the front sides. In an embodiment, a first interconnect can be coupled to the back sides of both the first and second solar cell, where the first interconnect comprises an anodized region facing substantially the same direction as the front sides.

First claim

What is claimed is:

1. A plurality of connected solar cells, comprising:
first and second pad-less solar cells having front surfaces which face the sun during normal operation and back surfaces opposite the front surface;
a first tab-less interconnect comprising a conductive foil welded to and partially disposed on metal regions adjacent along a center portion of the first and second solar cells, the first tab-less interconnect comprising a dog-bone shape, wherein the first tab-less interconnect is located along and planar across the center portion of the first and second solar cells, and wherein the first tab-less interconnect has a total length that extends along less than an entirety of the center portion of the first and second solar cells and that extends along less than an entirety of the metal regions; and
an anodized region facing substantially the same direction as the front surfaces, the anodized region having a widest width less than a narrowest width of the first tab-less interconnect.

2. The plurality of connected solar cells of claim 1 wherein the first tab-less interconnect comprises a material selected from the group consisting of aluminum, nickel and zincate.

3. The plurality of connected solar cells of claim 1 , wherein the front surface and the back surface of each pad-less solar cell have corresponding chamfered corners.

4. The plurality of connected solar cells of claim 1 , wherein the first tab-less interconnect is substantially planar with the metal regions.

5. The plurality of connected solar cells of claim 1 , wherein the first tab-less interconnect is facing substantially the same direction as the front surfaces.

6. The plurality of connected solar cells of claim 1 , wherein the anodized region comprises a color substantially the same as a color of a backsheet of the plurality of connected solar cells.

7. A plurality of connected solar cells, comprising:
first and second pad-less solar cells having front surfaces which face the sun during normal operation and back surfaces opposite the front surface;
a first tab-less interconnect comprising a conductive foil welded to and partially disposed on metal regions adjacent along a center portion of the first and second solar cells, the metal regions extending away from the center portion of the first and second solar cells, and the first tab-less interconnect comprising a dog-bone shape, wherein the first tab-less interconnect is located along and planar across the center portion of the first and second solar cells, and wherein the first tab-less interconnect has a total length that extends along less than an entirety of the center portion of the first and second solar cells and that extends along less than an entirety of the metal regions; and
an anodized region facing substantially the same direction as the front surfaces, the anodized region having a widest width less than a narrowest width of the first tab-less interconnect.

8. The plurality of connected solar cells of claim 7 , wherein the first tab-less interconnect comprises a material selected from the group consisting of aluminum, nickel and zincate.

9. The plurality of connected solar cells of claim 7 , wherein the front surface and the back surface of each pad-less solar cell have corresponding chamfered corners.

10. The plurality of connected solar cells of claim 7 , wherein the first tab-less interconnect is substantially planar with the metal regions.

11. The plurality of connected solar cells of claim 7 , wherein the first tab-less interconnect is facing substantially the same direction as the front surfaces.

12. The plurality of connected solar cells of claim 7 , wherein the anodized region comprises a color substantially the same as a color of a backsheet of the plurality of connected solar cells.

13. A plurality of connected solar cells, comprising:
first and second solar cells having front surfaces which face the sun during normal operation and back surfaces opposite the front surfaces, wherein the front surface and the back surface of each solar cell have corresponding chamfered corners;
a first tab-less interconnect comprising a conductive foil welded to and partially disposed on metal regions adjacent along a center portion of the first and second solar cells, the first tab-less interconnect comprising a dog-bone shape, wherein a portion of the conductive foil is positioned on and between facing chamfered corners of the first and second solar cells, and wherein the first tab-less interconnect is located along and planar across the center portion of the first and second solar cells, and wherein the first tab-less interconnect has a total length that extends along less than an entirety of the center portion of the first and second solar cells and that extends along less than an entirety of the metal regions; and
an anodized region facing substantially the same direction as the front surfaces, the anodized region having a widest width less than a narrowest width of the first tab-less interconnect.

14. The plurality of connected solar cells of claim 13 , wherein the first tab-less interconnect comprises a material selected from the group consisting of aluminum, nickel and zincate.

15. The plurality of connected solar cells of claim 13 , wherein the anodized region comprises a color substantially the same as a color of a backsheet of the solar module.

Assignees

• Maxeon Solar Ptd Ltd
• Maxeon Solar Pte Ltd

Inventors

• Pass Thomas

Classifications

• H10F77/215

  Geometries of grid contacts · CPC title

• H10F77/14

  Shape of semiconductor bodies; Shapes, relative sizes or dispositions of semiconductor regions within semiconductor bodies · CPC title

• H10F19/908

  for back-contact photovoltaic cells · CPC title

• H10F19/906 Primary

  characterised by the materials of the structures · CPC title

• H01L31/0512 Primary

  Electricity · mapped topic