Title:
ELECTROLYTIC COPPER FOIL, NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERIES, AND LITHIUM ION SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2022/054597
Kind Code:
A1
Abstract:
The present invention provides an electrolytic copper foil which is not susceptible to breaking. With respect to this electrolytic copper foil, if t (unit: μm) is the foil thickness, Gs (unit: %) is the gloss of the electrolytic deposition end surface as determined by irradiating the electrolytic deposition end surface with light at an angle of incidence of 60° in the length direction, and E (unit: %) is the elongation as determined by pulling the foil in the length direction, the foil thickness t is from 10 to 20, Gs/t that is obtained by dividing the gloss Gs by the foil thickness t is from 10 to 40, and E/t that is obtained by dividing the elongation E by the foil thickness t is from 0.9 to 1.8.
Inventors:
TAKAZAWA RYOJI (JP)
Application Number:
PCT/JP2021/031362
Publication Date:
March 17, 2022
Filing Date:
August 26, 2021
Export Citation:
Assignee:
FURUKAWA ELECTRIC CO LTD (JP)
International Classes:
C25D1/00; C25D1/04; H01M4/13; H01M4/64; H01M4/66
Domestic Patent References:
| WO2000015875A1 | 2000-03-23 |
Foreign References:
| JP2009221592A | 2009-10-01 | |||
| JP2008101267A | 2008-05-01 | |||
| JPH07216586A | 1995-08-15 | |||
| JPH07228996A | 1995-08-29 | |||
| JPH08236120A | 1996-09-13 |
Attorney, Agent or Firm:
TANAKA Hidetetsu et al. (JP)
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