Title:
COPPER FOIL WITH ANTI-WRINKLE PROPERTY, ELECTRODE COMPRISING SAME, SECONDARY BATTERY COMPRISING SAME, AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/101177
Kind Code:
A1
Abstract:
Provided in one embodiment of the present invention is a copper foil, which comprises a copper layer having a matte surface and a shiny surface, and an anticorrosive film arranged on the copper layer, and has a residual stress of 0.5-25 MPa on the basis of the absolute value thereof, wherein the copper layer comprises copper and carbon (C), the amount of carbon (C) in the copper layer is 2-20 ppm, the copper layer has a plane (111), a plane (200), a plane (220) and a plane (311) including crystalline particles, the ratio of the diffraction intensity of the plane (220) to the sum of the diffraction intensities of the plane (111), the plane (200), the plane (220) and the plane (311) is 10-40%, and the crystalline particles of the plane (220) have an average particle size of 70-120 nm at room temperature.
Inventors:
JIN SHAN HUA (KR)
LEE AN NA (KR)
KIM SEUNG MIN (KR)
LEE AN NA (KR)
KIM SEUNG MIN (KR)
Application Number:
PCT/KR2020/015966
Publication Date:
May 27, 2021
Filing Date:
November 13, 2020
Export Citation:
Assignee:
SK NEXILIS CO LTD (KR)
International Classes:
C25D1/04; C23C22/24; C23C28/00; C25D3/38; C25D5/48; H01M4/66
Foreign References:
| KR20190012922A | 2019-02-11 | |||
| KR20190074107A | 2019-06-27 | |||
| KR20160021174A | 2016-02-24 | |||
| KR20150041577A | 2015-04-16 | |||
| US20190249322A1 | 2019-08-15 |
Other References:
See also references of EP 3951021A4
Attorney, Agent or Firm:
ASTRAN INT'L IP GROUP (KR)
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