Title:
ELECTROLYTIC COPPER FOIL FOR SECONDARY BATTERY AND MANUFACTURING METHOD THEREOF
Document Type and Number:
Japanese Patent JP2022008857
Kind Code:
A
Abstract:
To provide an electrolytic copper foil for a secondary battery that has a small change in physical properties due to the speed difference in crosshead speed at the time of measuring of the tensile strength and draw ratio of an electrolytic copper foil, has excellent battery charge/discharge characteristics, and can prevent desorption of an active materials.SOLUTION: In an electrolytic copper foil for a secondary battery according to an embodiment of the present invention manufactured using a drum with a plating solution containing TOC, cobalt, and iron and coated with a cathode active material, the ratio of the TOC to the cobalt and the iron contained in the electrolytic copper foil follows the following equation 1. The equation 1: TOC/(cobalt+iron)=1.3 to 1.5.SELECTED DRAWING: None
Inventors:
LEE SUNG HYUN
JO TAE JIN
PARK SEULKI
SONG KI DEOK
JO TAE JIN
PARK SEULKI
SONG KI DEOK
Application Number:
JP2021163962A
Publication Date:
January 14, 2022
Filing Date:
October 05, 2021
Export Citation:
Assignee:
ILJIN MAT CO LTD
International Classes:
H01M4/66; C25D1/04
Domestic Patent References:
| JP2013095954A | 2013-05-20 | |||
| JP2012033475A | 2012-02-16 |
Foreign References:
| WO2014119582A1 | 2014-08-07 | |||
| WO2015142100A1 | 2015-09-24 |
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Osamu Miyazaki
Tadahiko Ito
Osamu Miyazaki
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