- 专利标题: Method of producing negative electrode for secondary battery
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申请号: US17292470申请日: 2020-01-23
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公开(公告)号: US12068470B2公开(公告)日: 2024-08-20
- 发明人: Oh Byong Chae , Sang Wook Woo , Ye Ri Kim
- 申请人: LG ENERGY SOLUTION, LTD.
- 申请人地址: KR Seoul
- 专利权人: LG ENERGY SOLUTION, LTD.
- 当前专利权人: LG ENERGY SOLUTION, LTD.
- 当前专利权人地址: KR Seoul
- 代理机构: Birch, Stewart, Kolasch & Birch, LLP
- 优先权: KR 20190009787 2019.01.25
- 国际申请: PCT/KR2020/001173 2020.01.23
- 国际公布: WO2020/153790A 2020.07.30
- 进入国家日期: 2021-05-10
- 主分类号: H01M4/04
- IPC分类号: H01M4/04 ; H01M4/02 ; H01M4/38 ; H01M4/583
摘要:
A method of producing a negative electrode for a secondary battery, which includes: forming a negative electrode structure including a negative electrode current collector having two surfaces and a negative electrode active material layer formed on at least one surface of the negative electrode current collector; preparing a pre-lithiation cell including the negative electrode structure, a lithium metal counter electrode disposed to face the negative electrode active material layer of the negative electrode structure, and a separator interposed between the negative electrode structure and the lithium metal counter electrode; immersing the pre-lithiation cell in a pre-lithiation solution; and carrying out pre-lithiation by electrochemically charging the pre-lithiation cell while pressing the pre-lithiation cell at a pressure of 15 kPa to 3,200 kPa.
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