Invention Grant
- Patent Title: Lithium electrode and lithium secondary battery comprising same
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Application No.: US16975333Application Date: 2019-10-31
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Publication No.: US11978852B2Publication Date: 2024-05-07
- Inventor: Eunkyung Park , Minchul Jang , Bora Jung , Suk Il Youn , Byoungkuk Son
- Applicant: LG CHEM, LTD.
- Applicant Address: KR Seoul
- Assignee: LG ENERGY SOLUTION, LTD.
- Current Assignee: LG ENERGY SOLUTION, LTD.
- Current Assignee Address: KR Seoul
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: KR 20180131652 2018.10.31 KR 20190137931 2019.10.31
- International Application: PCT/KR2019/014641 2019.10.31
- International Announcement: WO2020/091479A 2020.05.07
- Date entered country: 2020-08-24
- Main IPC: H01M10/0565
- IPC: H01M10/0565 ; H01M4/62 ; H01M10/0525

Abstract:
A lithium electrode and a lithium secondary battery including the same, which includes a first protective layer and a second protective layer sequentially formed on at least one surface of lithium metal layer. The second protective layer contains a cross-linked ion conductive electrolyte in the interior and on the surface of the electrically conductive matrix, and thus the first protective layer has higher ion conductivity than the second protective layer, thereby preventing electrons from being concentrated into lithium dendrites formed from the lithium metal to inhibit the growth of lithium dendrites, and at the same time, physically inhibiting the growth of lithium dendrites by the second protective layer.
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