ALUMINUM ALLOY FOIL FOR ELECTRODE CURRENT COLLECTORS AND MANUFACTURING METHOD THEREOF
First Claim
1. An aluminum alloy foil for an electrode current collector, comprising 0.1 to 1.0 mass % (hereinafter, “
- mass %”
is simply referred to as “
%”
) of Fe, 0.01 to 0.5% of Si, and 0.01 to 0.2% of Cu, with the rest consisting of Al and unavoidable impurities, wherein the aluminum alloy foil after final cold rolling has a tensile strength of 220 MPa or higher, a 0.2% yield strength of 180 MPa or higher, and an electrical conductivity of 58% IACS or higher; and
the aluminum ally foil has a tensile strength of 190 MPa or higher and a 0.2% yield strength of 160 MPa or higher even after the aluminum alloy foil is subjected to heat treatment at any of 120°
C. for 24 hours, 140°
C. for 3 hours, and 160°
C. for 15 minutes.
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0 Petitions
Accused Products
Abstract
It is an object to provide an aluminum alloy foil for an electrode current collector, the foil having a high post-drying strength after application of an active material while keeping a high electrical conductivity. Disclosed is an aluminum alloy foil for an electrode current collector, comprising 0.1 to 1.0 mass % (hereinafter, “mass %” is simply referred to as “%”) of Fe, 0.01 to 0.5% of Si, and 0.01 to 0.2% of Cu, with the rest consisting of Al and unavoidable impurities, wherein the aluminum alloy foil after final cold rolling has a tensile strength of 220 MPa or higher, a 0.2% yield strength of 180 MPa or higher, and an electrical conductivity of 58% IACS or higher; and the aluminum ally foil has a tensile strength of 190 MPa or higher and a 0.2% yield strength of 160 MPa or higher even after the aluminum alloy foil is subjected to heat treatment at any of 120° C. for 24 hours, 140° C. for 3 hours, and 160° C. for 15 minutes.
10 Citations
2 Claims
-
1. An aluminum alloy foil for an electrode current collector, comprising 0.1 to 1.0 mass % (hereinafter, “
- mass %”
is simply referred to as “
%”
) of Fe, 0.01 to 0.5% of Si, and 0.01 to 0.2% of Cu, with the rest consisting of Al and unavoidable impurities, wherein the aluminum alloy foil after final cold rolling has a tensile strength of 220 MPa or higher, a 0.2% yield strength of 180 MPa or higher, and an electrical conductivity of 58% IACS or higher; and
the aluminum ally foil has a tensile strength of 190 MPa or higher and a 0.2% yield strength of 160 MPa or higher even after the aluminum alloy foil is subjected to heat treatment at any of 120°
C. for 24 hours, 140°
C. for 3 hours, and 160°
C. for 15 minutes. - View Dependent Claims (2)
- mass %”
Specification