Invention Grant
- Patent Title: Positive active material for rechargeable lithium battery, method of preparing the same and rechargeable lithium battery including the same
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Application No.: US16684057Application Date: 2019-11-14
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Publication No.: US11757092B2Publication Date: 2023-09-12
- Inventor: Donggyu Chang , Donghyun Kil , Jongmin Kim , Wooyoung Yang
- 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 20180140901 2018.11.15
- Main IPC: H01M4/36
- IPC: H01M4/36 ; H01M4/04 ; H01M4/50 ; H01M4/505 ; H01M4/52 ; H01M4/525 ; H01M10/04 ; H01M10/0525 ; H01M4/02
Abstract:
A positive active material for a rechargeable lithium battery includes a lithium nickel-based composite oxide including a secondary particle in which a plurality of plate-shaped primary particles are agglomerated; and a coating layer including a fiber-shaped lithium manganese composite oxide, wherein the fiber-shaped lithium manganese composite oxide is attached to the surface of the lithium nickel-based composite oxide.
Public/Granted literature
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