The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 14, 2018
Filed:
Dec. 12, 2011
Masakazu Seki, Chiyoda-ku, JP;
Satoshi Suzuki, Chiyoda-ku, JP;
Tomohiko Furutani, Kusatsu, JP;
Kenji Yamamoto, Kusatsu, JP;
Koichi Ashizawa, Kusatsu, JP;
Masakazu Seki, Chiyoda-ku, JP;
Satoshi Suzuki, Chiyoda-ku, JP;
Tomohiko Furutani, Kusatsu, JP;
Kenji Yamamoto, Kusatsu, JP;
Koichi Ashizawa, Kusatsu, JP;
UACJ CORPORATION, Tokyo, JP;
UACJ FOIL CORPORATION, Tokyo, JP;
Abstract
An aluminum alloy foil for an electrode current collectors has a high post-drying strength after application of an active material while keeping a high electrical conductivity. The aluminum alloy foil includes 0.1 to 1.0 mass % of Fe, 0.01 to 0.5% of Si, and 0.01 to 0.2 mass % of Cu, and the rest includes Al and unavoidable impurities. 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. The aluminum alloy foil has a tensile strength of 190 MPa or higher and a 0.2% yield strength of 160 MPa or higher after the aluminum alloy foil is heat treated at any of 120° C. for 24 hours, 140° C. for 3 hours, and 160° C. for 15 minutes.