Title:
ELECTROLYTIC COPPER FOIL FOR SECONDARY BATTERY AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2018/088646
Kind Code:
A1
Abstract:
The present invention relates to an electrolytic copper foil for a secondary battery and a method for producing the electrolytic copper foil and, more specifically, to an electrolytic copper foil for a secondary battery, in which the formation of a burr and curl of a cathode plate after the coating of the electrolytic copper foil with an active material is inhibited, thereby increasing the loading volume of a cathode and enhancing the capacity, and to a method for producing the electrolytic copper foil. According to an aspect of the present invention, embodiments of the prevent invention include an electrolytic copper foil for a secondary battery, which is produced from a plating solution, containing total organic carbon (TOC), by using a drum, wherein the electrolytic copper foil comprises one side coming into direct contact with the drum, and the other side which is the opposite side of the one side, wherein the average cross-sectional grain size of the one side is 80% or less of that of the other side.
Inventors:
LEE SUN HYOUNG (KR)
JO TAE JIN (KR)
PARK SEUL-KI (KR)
SONG KI DEOK (KR)
JO TAE JIN (KR)
PARK SEUL-KI (KR)
SONG KI DEOK (KR)
Application Number:
PCT/KR2017/003375
Publication Date:
May 17, 2018
Filing Date:
March 28, 2017
Export Citation:
Assignee:
ILJIN MAT CO LTD (KR)
International Classes:
H01M4/66; C25D1/04; H01M4/04
Foreign References:
| KR20070117465A | 2007-12-12 | |||
| JP5940256B2 | 2016-06-29 | |||
| JP2015060703A | 2015-03-30 | |||
| KR20140043133A | 2014-04-08 | |||
| JP2016056452A | 2016-04-21 |
Other References:
See also references of EP 3540832A4
Attorney, Agent or Firm:
CHOI, Hoon Sik (KR)
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