Title:
電解銅箔、該電解銅箔を用いた電池用集電体、該集電体を用いた二次電池用電極、該電極を用いた二次電池
Document Type and Number:
Japanese Patent JP5579350
Kind Code:
B1
Abstract:
An electrolytic copper foil is provided in which the tensile strength measured at ordinary temperature after a 300ºC×1 hour heat treatment is 500 MPa or higher. Also provided is an electrolytic copper foil which, when laminated to a polyimide film, gives a printed wiring board having excellent mechanical strength. Furthermore provided is a copper alloy foil which, when used as a current collector (copper foil) in a lithium-ion secondary battery employing an active material based on an Si or Sn alloy, retains adhesion to the active material with the aid of a polyimide binder and suffers neither deformation nor breakage. The electrolytic copper foils contain tungsten in an amount of 0.06-0.5 wt%, with the remainder comprising copper. The electrolytic copper foils have a tensile strength measured at ordinary temperature after a 300ºC×1 hour heat treatment of 500 MPa or higher. A secondary battery is further provided in which either of the electrolytic copper foils is used as a current collector.
More Like This:
| WO/2023/101419 | APPARATUS FOR MANUFACTURING COPPER FOIL |
| JPS6431989 | ELECTROCASTING METHOD FOR PRODUCING POROUS FILM |
Inventors:
胡木 Masato
Akitoshi Suzuki
Kensaku Shinozaki
Fujisawa 季実子
繪 side 健
Akitoshi Suzuki
Kensaku Shinozaki
Fujisawa 季実子
繪 side 健
Application Number:
JP2014519741A
Publication Date:
August 27, 2014
Filing Date:
January 28, 2014
Export Citation:
Assignee:
The Furukawa Electric Co., Ltd.
International Classes:
C25D1/04; C22C9/00; C22F1/08; C25D1/00; H01M4/13; H01M4/64; H01M4/66; C22F1/00; C22F1/02
Domestic Patent References:
| JP3238278B2 | 2001-12-10 | |||
| JPH0967693A | 1997-03-11 | |||
| JP5521113B2 | 2014-06-11 |
Foreign References:
| WO2013018773A1 | 2013-02-07 |
Attorney, Agent or Firm:
Takahisa Sato