- 专利标题: Anode having double-protection layer formed thereon for lithium secondary battery, and lithium secondary battery comprising same
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申请号: US15780983申请日: 2017-09-29
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公开(公告)号: US10897040B2公开(公告)日: 2021-01-19
- 发明人: Heewon Choi , Sangwook Woo , Ohbyong Chae , Eun Kyung Kim
- 申请人: LG CHEM, LTD.
- 申请人地址: KR Seoul
- 专利权人: LG CHEM, LTD.
- 当前专利权人: LG CHEM, LTD.
- 当前专利权人地址: KR Seoul
- 代理机构: Birch, Stewart, Kolasch & Birch, LLP
- 优先权: KR10-2016-0127015 20160930,KR10-2017-0126709 20170929
- 国际申请: PCT/KR2017/010924 WO 20170929
- 国际公布: WO2018/062934 WO 20180405
- 主分类号: H01M4/134
- IPC分类号: H01M4/134 ; H01M4/38 ; H01M10/0525 ; H01M4/62 ; H01M10/42 ; H01M4/36 ; H01M4/02
摘要:
The present invention relates to a negative electrode for a lithium secondary battery having a double protective layer formed therein, and in particular, to a negative electrode for a lithium secondary battery having a polymer protective layer and a carbon-based protective layer formed therein, and a lithium secondary battery including the same. The lithium secondary battery including the negative electrode according to the present invention is capable of enhancing battery performance and exhibiting stable performance by forming a stable lithium fluoride (LiF) layer and thereby preventing a loss of a solid electrolyte interface (SEI) layer. In addition, a cycle life property is enhanced during charge and discharge by absorbing dead lithium or lithium dendrite and thereby preventing an internal short circuit of the battery.
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