Invention Grant
- Patent Title: Anode for lithium secondary battery comprising mesh-shaped insulating layer, and lithium secondary battery comprising same
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Application No.: US16088603Application Date: 2017-09-28
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Publication No.: US10734670B2Publication Date: 2020-08-04
- Inventor: Hyunwoong Yun , Jonghwa Lee
- Applicant: LG CHEM, LTD.
- Applicant Address: KR Seoul
- Assignee: LG CHEM, LTD.
- Current Assignee: LG CHEM, LTD.
- Current Assignee Address: KR Seoul
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@5c46e78d com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@b267033
- International Application: PCT/KR2017/010784 WO 20170928
- International Announcement: WO2018/062883 WO 20180405
- Main IPC: H01M10/052
- IPC: H01M10/052 ; H01M4/36 ; H01M4/38 ; H01M4/62 ; H01M4/134 ; H01M10/42 ; H01M4/40 ; H01M4/74 ; H01M4/02

Abstract:
The present invention relates to a negative electrode for a lithium secondary battery including a mesh-type insulating layer, and a lithium secondary battery including the same, and in particular, to a negative electrode for a lithium secondary battery including a mesh-type insulating layer formed on one surface of the lithium metal layer and having pores, and a lithium secondary battery including the same. The lithium secondary battery using the negative electrode induces a lithium dendrite precipitation and removal reaction inside pores of the insulating layer suppressing local lithium metal formation on the lithium metal surface and forming a uniform surface, and cell volume expansion may be suppressed therefrom, and forms a support layer on a passivation layer formed at the beginning preventing deintercalation and collapse of the passivation layer, and may enhance a battery lifetime by minimizing dead lithium while suppressing additional side reactions with a liquid electrolyte.
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