Invention Grant
- Patent Title: Impurity containing cathode material with preferred morphology and method to prepare from impurity containing metal carbonate
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Application No.: US16521846Application Date: 2019-07-25
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Publication No.: US11462735B2Publication Date: 2022-10-04
- Inventor: Jens Paulsen , Heonpyo Hong , JinDoo Oh
- Applicant: Umicore , Umicore Korea Ltd.
- Applicant Address: BE Brussels; KR Chungnam
- Assignee: Umicore,Umicore Korea Ltd.
- Current Assignee: Umicore,Umicore Korea Ltd.
- Current Assignee Address: BE Brussels; KR Chungnam
- Agency: NK Patent Law
- Priority: EP14188045 20141008
- Main IPC: H01M4/505
- IPC: H01M4/505 ; C01G53/00 ; C01G53/06 ; H01M4/525 ; H01M10/0525 ; H01M4/02
Abstract:
A carbonate precursor compound for manufacturing a lithium metal (M)-oxide powder usable as an active positive electrode material in lithium-ion batteries, M comprising 20 to 90 mol % Ni, 10 to 70 mol % Mn and 10 to 40 mol % Co, the precursor further comprising a sodium and sulfur impurity, wherein the sodium to sulfur molar ratio (Na/S) is 0.4
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