Invention Grant
- Patent Title: Copper foil free from generation of wrinkles, electrode comprising the same, secondary battery comprising the same and method for manufacturing the same
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Application No.: US16631739Application Date: 2018-07-25
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Publication No.: US11505873B2Publication Date: 2022-11-22
- Inventor: Shan Hua Jin , An Na Lee , Seung Min Kim
- Applicant: KCF Technologies Co., Ltd.
- Applicant Address: KR Anyang-si
- Assignee: KCF Technologies Co., Ltd.
- Current Assignee: KCF Technologies Co., Ltd.
- Current Assignee Address: KR Anyang-si
- Agency: K&L Gates LLP
- Priority: KR10-2017-0096664 20170731
- International Application: PCT/KR2018/008399 WO 20180725
- International Announcement: WO2019/027174 WO 20190207
- Main IPC: C25D7/04
- IPC: C25D7/04 ; C25D1/04 ; C25D3/38 ; C25D5/34 ; C25D5/48 ; H01M4/13 ; H01M4/66 ; H01M10/052 ; B32B15/01

Abstract:
Disclosed is a copper foil including a copper layer having a matte surface and a shiny surface, and an anticorrosive layer disposed on the copper layer, wherein the copper foil has a residual stress of 0.5 to 25 Mpa, based on absolute value, and the copper layer has a plurality of crystal planes, wherein a ratio [TCR (220)] of a texture coefficient (TC) of (220) crystal plane of the copper layer to a total of texture coefficients (TC) of (111), (200), (220) and (311) crystal planes of the copper layer is 5 to 30%.
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