- Patent Title: Lithium cobalt-based positive electrode active material, preparation method thereof, positive electrode including same, and secondary battery including positive electrode
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Application No.: US16758314Application Date: 2018-11-13
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Publication No.: US11837719B2Publication Date: 2023-12-05
- Inventor: Chi Ho Jo , Min Kyu You , Sung Bin Park , Hyuck Hur , Jin Tae Hwang , Wang Mo Jung
- Applicant: LG Chem, Ltd.
- Applicant Address: KR Seoul
- Assignee: LG Chem, Ltd.
- Current Assignee: LG Chem, Ltd.
- Current Assignee Address: KR Seoul
- Agency: Lerner David LLP
- Priority: KR 20170150922 2017.11.13 KR 20180138704 2018.11.13
- International Application: PCT/KR2018/013819 2018.11.13
- International Announcement: WO2019/093863A 2019.05.16
- Date entered country: 2020-04-22
- Main IPC: H01M4/36
- IPC: H01M4/36 ; H01M4/485 ; H01M4/525 ; H01M10/0525 ; C01G51/00 ; H01M4/02
Abstract:
A method for preparing a lithium cobalt-based positive electrode active material and a positive electrode active material prepared by the method are provided. The method includes dry-mixing and then heat treating a lithium cobalt oxide particle represented by Formula 1 and one or more lithium metal oxide particle selected from the group consisting of lithium aluminum oxide, lithium zirconium oxide, and lithium titanium oxide.
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