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:
Apr. 12, 2005
Filed:
Sep. 12, 2002
Hirohisa Seto, Kobe, JP;
Tadayuki Tamaki, Sakai, JP;
Toshiaki Shiota, Kyoto, JP;
Ryoichi Noumi, Mino, JP;
Kunihiro Fukui, Kobe, JP;
Masanari Kimoto, Kawanishi, JP;
Hirohisa Seto, Kobe, JP;
Tadayuki Tamaki, Sakai, JP;
Toshiaki Shiota, Kyoto, JP;
Ryoichi Noumi, Mino, JP;
Kunihiro Fukui, Kobe, JP;
Masanari Kimoto, Kawanishi, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A metal foil for a current collector of a secondary battery formed by electrodeposition and has a thickness (T) of 8 to 40 μm, the metal foil satisfying the following formulae:4.9×10≦31×104.5≦ε−(0.0005×)≦15where S is a breaking strength (MPa), ε is a tensile elongation (%) and Y is a Young's modulus (MPa). This foil is preferably a nickel foil and is manufactured by softening or annealing the metal foil obtained by electrodeposition. Thereby, a metal foil for a negative electrode of a secondary battery is obtained with an excellent capability of supporting the active material and large electric conductivity.