US 2022/0069141 A1 · LOW TEMPERATURE METALLIC INTERCONNECT FOR SOLAR CELL SHINGLING

Abstract

The present disclosure relates to electrical connections between shingled solar cells in a solar cell assembly. More particularly, the present disclosure describes the use of low temperature metallic interconnects that reduce resistivity between solar cells and assembly time. In an aspect, an assembly of shingled solar cells is described that includes a first solar cell having an insulating film on a back side, the insulating film having vias that expose a back metal layer of the first solar cell, and a second solar cell having a bus bar on a front side. In this assembly, the back metal layer of the first solar cell is electrically connected to the bus bar of the second solar cell through multiple electrical connections formed by low temperature solder that fills the vias in the insulating film of the first solar cell. A method of fabricating or manufacturing the assembly is also described.

Claims18

Dependent claims

A solar cell assembly with shingled solar cells, comprising:

a first solar cell having an insulating film on a back side, the insulating film having vias that expose a back metal layer of the first solar cell;
and
a second solar cell having a bus bar on a front side,
wherein the back metal layer of the first solar cell is electrically connected to the bus bar of the second solar cell through multiple electrical connections formed by low temperature solder that fills the vias in the insulating film of the first solar cell.

1 more element

Dependencies are inferred from the claim text.

Low temperature metallic interconnect for solar cell shingling

Life of this patent

Low temperature metallic interconnect for solar cell shingling

Life of this patent

Abstract

Claims18