- 专利标题: NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY, METHOD FOR PREPARING NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY COMPRISING NEGATIVE ELECTRODE
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申请号: EP22838035.8申请日: 2022-07-08
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公开(公告)号: EP4243123A1公开(公告)日: 2023-09-13
- 发明人: JUN, Chan Soo , KWON, Yohan , KIM, Young Jae , KIM, Taegon , PARK, Su Jin , LEE, Jaewook , JEON, Seoyoung
- 申请人: LG Energy Solution, Ltd.
- 申请人地址: KR Seoul 07335 Tower 1, 108, Yeoui-daero Yeongdeungpo-gu
- 代理机构: Hoffmann Eitle
- 优先权: KR20220066756 20220531
- 国际公布: WO2023282683 20230112
- 主分类号: H01M4/587
- IPC分类号: H01M4/587 ; H01M4/48 ; H01M4/38 ; H01M4/13 ; H01M4/139 ; H01M4/62 ; H01M10/0525 ; H01M4/36 ; H01M4/02
摘要:
A negative electrode for a lithium secondary battery, a method for preparing a negative electrode for a lithium secondary battery, and a lithium secondary battery including the negative electrode. The negative electrode for a lithium secondary battery includes a negative electrode current collector layer, a first negative electrode active material layer on one surface or both surfaces of the negative electrode current collector layer, and a second negative electrode active material layer on a surface opposite to a surface of the first negative electrode active material layer facing the negative electrode current collector layer. The second negative electrode active material layer satisfies the following Equation 1: 0.5 ≤ B/A ≤ 2, wherein A is a discharge capacity of the second negative electrode active material layer, and B means a capacity of pre-lithiation lithium.
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