- Patent Title: Nickel-based active material precursor for lithium secondary battery, method of preparing the same, nickel-based active material for lithium secondary battery formed therefrom, and lithium secondary battery including positive electrode including nickel-based active material
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Application No.: US17820475Application Date: 2022-08-17
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Publication No.: US11677076B2Publication Date: 2023-06-13
- Inventor: Pilsang Yun , Wooyoung Yang , Jangsuk Hyun
- Applicant: SAMSUNG SDI CO., LTD.
- Applicant Address: KR Yongin-si
- Assignee: Samsung SDI Co., Ltd.
- Current Assignee: Samsung SDI Co., Ltd.
- Current Assignee Address: KR Yongin-si
- Agency: Lewis Roca Rothgerber Christie LLP
- Priority: KR 20180123269 2018.10.16 KR 20190127697 2019.10.15
- The original application number of the division: US16655068 2019.10.16
- Main IPC: H01B1/06
- IPC: H01B1/06 ; H01M4/525 ; C01G53/00 ; H01M4/36 ; H01M10/0525 ; H01M4/02
Abstract:
A nickel-based active material precursor includes a particulate structure including a core portion, an intermediate layer portion on the core portion, and a shell portion on the intermediate layer portion, wherein the intermediate layer portion and the shell portion include primary particles radially arranged on the core portion, and each of the core portion and the intermediate layer portion includes a cation or anion different from that of the shell portion. The cation includes at least one selected from boron (B), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), titanium (Ti), vanadium (V), tungsten (W), chromium (Cr), iron (Fe), copper (Cu), zirconium (Zr), and aluminium (Al), and the anion includes at least one selected from phosphate (PO4), BO2, B4O7, B3O5, and F.
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