Invention Grant
- Patent Title: Positive electrode active material for lithium secondary battery, method of preparing the same, positive electrode for lithium secondary battery including the same, and lithium secondary battery including the positive electrode
- Patent Title (中): 锂二次电池用正极活性物质及其制造方法，包含该锂二次电池的锂二次电池用正极，以及包含该正极的锂二次电池
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Application No.: US13476847Application Date: 2012-05-21
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Publication No.: US08795891B2Publication Date: 2014-08-05
- Inventor: Seung-Beob Yi
- Applicant: Seung-Beob Yi
- Applicant Address: KR Yongin-si
- Assignee: Samsung SDI Co., Ltd.
- Current Assignee: Samsung SDI Co., Ltd.
- Current Assignee Address: KR Yongin-si
- Agency: Christie, Parker & Hale, LLP
- Priority: KR10-2011-0071084 20110718
- Main IPC: H01M4/13
- IPC: H01M4/13 ; H01M4/485 ; H01M4/505 ; H01M4/525 ; H01M4/131
Abstract:
A positive electrode active material for a lithium secondary battery includes a lithium cobalt complex oxide containing an alkali earth metal and a transition metal in a predetermined mixture ratio. A method of preparing the positive electrode active material includes mixing a lithium salt, a transition metal precursor, and an alkali earth metal salt to form a mixture, and performing at least one thermal treatment on the mixture. A positive electrode for a lithium secondary battery includes the positive electrode active material, and a lithium secondary battery includes the positive electrode.
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