Metal tape material and interconnector for solar module current collection

摘要

A metal tape material contains a metal having face centered cubic lattice structure, in which metal tape material an area fraction A1 of a preferentially <100>oriented region are within an orientation difference of 15° C. relative to a thickness direction of the metal tape material and further within an orientation difference of 15° C. relative to a first in-plane direction of the metal tape material is 60% or greater and not greater than 100%, and, where an area fraction of a preferentially <212>oriented region are within an orientation difference of 15° relative to the thickness direction and further within an orientation difference of 15° relative to the first in-plane direction is defined as A2, the total of the area fraction of the preferentially <212>oriented region and the area fraction of the preferentially <100>oriented region, A1+A2, is greater than 70% and not greater than 100%.

主权项

1. A metal tape material comprising a metal whose crystal structure is face centered cubic lattice structure,
wherein an area fraction A1 of a <100> oriented region in which crystal axes <100> of a unit lattice of the face centered cubic structure are within an orientation difference of 15° relative to a thickness direction of the metal tape material and further within an orientation difference of 15° relative to a first in-plane direction of the metal tape material is 60% or greater and not greater than 100%, and, wherein an area fraction of a <212> noriented region in which crystal axes <212>of the unit lattice of the face centered cubic structure are within an orientation difference of 15° relative to the thickness direction of the metal tape material and further within an orientation difference of 15° relative to the first in-plane direction of the metal tape material is defined as A2, the total of the area fraction of the <212> oriented region and the area fraction of the <100> oriented region, A1+A2, is greater than 70% and not greater than 100%, wherein the crystal grain size of the crystal grains in an in-plane direction of the metal tape material is 400 μm or greater, wherein the metal is copper, silver, aluminum, or gold, wherein the area fraction A1 is not greater than 99.8% and the area fraction A2 is 0.2% or greater, and wherein the first direction is the longitudinal direction of the metal tape material.