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Title:
ELECTROLYTIC COPPER FOIL, MANUFACTURING METHOD THEREFOR, NEGATIVE ELECTRODE FOR LITHIUM-ION SECONDARY BATTERY, AND LITHIUM-ION SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2014/002997
Kind Code:
A1
Abstract:
An electrolytic copper foil having increased tensile strength and electrical conductivity is provided, as is a manufacturing method therefor. A lithium-ion secondary battery using a negative electrode that uses the aforementioned electrolytic copper foil as a collector is also provided. In a transmission electron microscopy (TEM) image of this electrolytic copper foil, the mean number of intersections between an arbitrary line segment 500 nm long and twin planes that are (111) Σ3 grain boundaries is between 5 and 40, inclusive. The aforementioned lithium-ion secondary battery uses a negative electrode that uses said electrolytic copper foil as a collector.

Inventors:
FUJISAWA KIMIKO (JP)
TACHIBANA AKIRA (JP)
SHINOZAKI KENSAKU (JP)
SUZUKI AKITOSHI (JP)
Application Number:
PCT/JP2013/067380
Publication Date:
January 03, 2014
Filing Date:
June 25, 2013
Export Citation:
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Assignee:
FURUKAWA ELECTRIC CO LTD (JP)
International Classes:
C25D1/04; C22C9/00; C25D1/00; H01M4/66
Foreign References:
JP2001123289A2001-05-08
JP2009299100A2009-12-24
JP2002053993A2002-02-19
JP2001181886A2001-07-03
JP2001011685A2001-01-16
Attorney, Agent or Firm:
SATOH, TAKAHISA (JP)
Takahisa Sato (JP)
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