Invention Grant
- Patent Title: Cathode active material for lithium secondary battery and method of manufacturing the same
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Application No.: US16674864Application Date: 2019-11-05
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Publication No.: US11699784B2Publication Date: 2023-07-11
- Inventor: Jik Soo Kim , Sang Bok Kim , Hyo Shin Kwak , Myoung Lae Kim , Se Rah Moon , Jin Seok Seo , Mi Jung Noh , Duck Chul Hwang
- Applicant: SK INNOVATION CO., LTD.
- Applicant Address: KR Seoul
- Assignee: SK ON CO., LTD.
- Current Assignee: SK ON CO., LTD.
- Current Assignee Address: KR Seoul
- Agency: IP & T Group LLP
- Priority: KR 20180135346 2018.11.06 KR 20190125433 2019.10.10
- Main IPC: H01M4/36
- IPC: H01M4/36 ; H01M4/525 ; H01M10/0525 ; H01M4/62 ; C07D295/14 ; C07D277/36 ; H01M4/02
Abstract:
A cathode active material for a lithium secondary battery includes a lithium metal oxide particle and a thio-based compound formed on at least portion of a surface of the lithium metal oxide particle. The thio-based compound has a double bond that contains a sulfur atom. Chemical stability of the lithium metal oxide particle may be improved and surface residues may be reduced by the thio-based compound.
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