Title:
ELECTROLYTIC COPPER FOIL AND METHOD FOR PRODUCING THE SAME
Document Type and Number:
Japanese Patent JP2015045092
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an electrolytic copper foil in which the warp caused by thermal load is reduced, in particular, an electrolytic copper foil useful for a negative electrode collector for a secondary battery, and to provide a method for producing the same.SOLUTION: The electrolytic copper foil is characterized in that the difference in Vickers hardness (Hv) of the front and rear surfaces of an electrolytic copper foil or an electrolytic copper foil after treatment is 10 or less, and the warp amount of the electrolytic copper foil or the electrolytic copper foil after treatment is 1 mm or less. The method for producing the electrolytic copper foil is characterized by removing distortion of the electrolytic copper foil or the electrolytic copper foil after treatment by heating the electrolytic copper foil or the electrolytic copper foil after treatment at a temperature of 130-155°C in an oven.
Inventors:
MINAGAWA YOICHI
Application Number:
JP2014211164A
Publication Date:
March 12, 2015
Filing Date:
October 15, 2014
Export Citation:
Assignee:
JX NIPPON MINING & METALS CORP
International Classes:
C25D1/04; C22F1/08; C25D7/06; H01M4/66
Domestic Patent References:
| JP2001214299A | 2001-08-07 |
Foreign References:
| WO2012070591A1 | 2012-05-31 |
Attorney, Agent or Firm:
Axis international patent business corporation