Invention Grant
- Patent Title: Composite positive electrode active material, positive electrode including the same, and lithium battery including the positive electrode
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Application No.: US15335781Application Date: 2016-10-27
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Publication No.: US10862106B2Publication Date: 2020-12-08
- Inventor: Donghan Kim , Ryounghee Kim , Jinhwan Park , Jayhyok Song , Byongyong Yu , Byungjin Choi
- Applicant: Samsung Electronics Co., Ltd. , Samsung SDI Co., Ltd.
- Applicant Address: KR Gyeonggi-Do KR Gyeonggi-Do
- Assignee: SAMSUNG ELECTRONICS CO., LTD.,SAMSUNG SDI CO., LTD.
- Current Assignee: SAMSUNG ELECTRONICS CO., LTD.,SAMSUNG SDI CO., LTD.
- Current Assignee Address: KR Gyeonggi-Do KR Gyeonggi-Do
- Agency: Cantor Colburn LLP
- Priority: KR10-2015-0150273 20151028; KR10-2016-0140664 20161027
- Main IPC: H01M4/36
- IPC: H01M4/36 ; H01M10/0525 ; H01M4/131 ; H01M4/525 ; H01M4/485 ; H01M4/505 ; H01M4/62
Abstract:
A composite positive electrode active material includes: a first metal oxide that has a layered structure and is represented by Formula 1; and a second metal oxide that has a spinel structure and is represented by Formula 2, wherein the composite positive electrode active material includes a composite of the first metal oxide and the second metal oxide: LiMO2 Formula 1 LiMe2O4 Formula 2 wherein, in Formulas 1 and 2, M and Me are each independently at least one element selected from Groups 2 to 14 of the periodic table, and a molar ratio of Li/(M+Me) in the composite is less than 1.
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