Title:
電解銅箔及びその製造方法、リチウム二次電池用の集電体、ならびに前記電解銅箔を含む二次電池
Document Type and Number:
Japanese Patent JP6786567
Kind Code:
B2
Abstract:
An electrodeposited copper foil of high toughness having a lightness L* value of the deposit side in the range of 36 to 74, the copper foil having a tensile strength in the range of 40 to 70 kg/mm 2 , and a weight deviation of less than 3%. The electrodeposited copper foils are particularly useful as current collectors for anode components of rechargeable secondary batteries and tend not to form wrinkles during charge-discharge cycles of the battery and are resistant to fracture during pressing of the anode active materials onto the copper foil. Secondary batteries and methods of manufacture are also described.
Inventors:
Zheng Katsura
Huang Hui
Yoyoi
Zhou Ruichang
Huang Hui
Yoyoi
Zhou Ruichang
Application Number:
JP2018200764A
Publication Date:
November 18, 2020
Filing Date:
October 25, 2018
Export Citation:
Assignee:
Changchun Petroleum Chemical Co., Ltd.
International Classes:
C25D1/04; C25D1/00; H01M4/139; H01M4/64; H01M4/66; H01M10/052; H01M10/0585
Domestic Patent References:
| JP11135130A | ||||
| JP2014037582A | ||||
| JP2008010320A |
Foreign References:
| US9711799 |
Attorney, Agent or Firm:
Patent corporation ssinpat