Title:
Copper foil, a cathode current collection object, and the cathode material of a nonaqueous system rechargeable battery
Document Type and Number:
Japanese Patent JP6122847
Kind Code:
B2
Abstract:
An object of the present invention is to provide a copper foil inexpensive and sufficient in tensile strength even after heat treatment. The copper foil includes zinc in a content range of 0.02% by mass to 2.7% by mass in the total mass of the entire copper foil, and if the regions in thicknesses direction from both surfaces of the copper foil where occupies 5% by mass in the total mass of the entire copper foil are referred to as the respective external layers and a region between one external layer and the other external layer is referred to as an internal layer, the internal layer includes copper as a main element and includes 100 ppm or more of one or mixture of small amount-elements selected from carbon, sulfur, chlorine and nitrogen, and includes zinc at 10% or more in the total mass of zinc included in the entire copper foil.
Inventors:
Yuichi Miyake
Satoshi Maeda
Kazumi Hozumi
Hiroaki Nakahara
Shinichi Yamauchi
Satoshi Maeda
Kazumi Hozumi
Hiroaki Nakahara
Shinichi Yamauchi
Application Number:
JP2014516800A
Publication Date:
April 26, 2017
Filing Date:
May 21, 2013
Export Citation:
Assignee:
Mitsui Mining & Smelting Co., Ltd.
International Classes:
C23C10/28; C22C9/04; C23C28/00; C25D7/06; H01M4/64; H01M4/66
Domestic Patent References:
| JP2011012297A | ||||
| JP2000165037A | ||||
| JP2001256968A | ||||
| JP2005353384A | ||||
| JP2007217787A |
Attorney, Agent or Firm:
Katsuhiro Yoshimura
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