Title:
COPPER FOIL, NEGATIVE ELECTRODE CURRENT COLLECTOR FOR LITHIUM ION BATTERY INCLUDING SAME, AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/179183
Kind Code:
A1
Abstract:
The present invention aims to provide a novel copper foil, a negative electrode current collector for a lithium ion battery including same, and a production method therefor. The present invention: produces a copper foil that has a convex section on at least part of the surface thereof, an RSm of no more than 1,000 nm, and a surface area ratio of at least 1.15; and uses this copper foil and produces a negative electrode current collector.
Inventors:
SATO MAKIKO (JP)
OKUBO KEN (JP)
OKUBO KEN (JP)
Application Number:
PCT/JP2019/049165
Publication Date:
September 10, 2020
Filing Date:
December 16, 2019
Export Citation:
Assignee:
NAMICS CORP (JP)
International Classes:
C23C28/00; H01M4/66
Domestic Patent References:
| WO2019093494A1 | 2019-05-16 | |||
| WO2019093077A1 | 2019-05-16 |
Foreign References:
| JPH11307102A | 1999-11-05 | |||
| JP2010205507A | 2010-09-16 | |||
| JP2011108362A | 2011-06-02 | |||
| JP2008305781A | 2008-12-18 | |||
| JPH11167922A | 1999-06-22 |
Attorney, Agent or Firm:
ISSHIKI & CO. (JP)
Download PDF: