Title:
METHOD FOR MANUFACTURING ALUMINUM FOIL, ALUMINUM FOIL, AND ELECTRODE USING THE SAME, AND ELECTRICITY STORAGE DEVICE
Document Type and Number:
Japanese Patent JP2014159606
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a manufacturing method capable of obtaining a thin aluminum foil having, on both surfaces thereof, equivalent surface roughness Ra in unprocessed states.SOLUTION: In the provided method for manufacturing an aluminum foil, an electric field is applied between a cathode drum and an anode plate immersed partially within an aluminum electrolytic solution so as to realize a state where an aluminum electrolytic film laminated on the cathode drum in a shape of a coil or concentric rings are formed, and subsequently, the laminated aluminum electrolytic film is peeled off from the interface thereof. This manufacturing method provides an aluminum foil having a thickness of 1-50 μm, wherein a release surface having a surface roughness Ra of 0.1 μm or above and 1 μm or below is formed on at least one foil surface.
Inventors:
OKAMOTO ATSUSHI
Application Number:
JP2013029650A
Publication Date:
September 04, 2014
Filing Date:
February 19, 2013
Export Citation:
Assignee:
HITACHI METALS LTD
International Classes:
C25D1/04; C25D1/00; C25D1/20; H01G9/00; H01G9/055; H01G11/66; H01M4/64; H01M4/66
Domestic Patent References:
| JP2001189238A | 2001-07-10 | |||
| JP2013012450A | 2013-01-17 | |||
| JP2012109122A | 2012-06-07 | |||
| JP2012099351A | 2012-05-24 | |||
| JP2012230777A | 2012-11-22 | |||
| JP2001189154A | 2001-07-10 | |||
| JP2011023303A | 2011-02-03 | |||
| JP2009253168A | 2009-10-29 |
Foreign References:
| WO2001029918A1 | 2001-04-26 |