Invention Grant
- Patent Title: Method of preparing positive active material with low carbon content for rechargeable lithium battery
- Patent Title (中): 为可再充电锂电池制备低碳含量的正极活性物质的方法
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Application No.: US12206091Application Date: 2008-09-08
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Publication No.: US08343663B2Publication Date: 2013-01-01
- Inventor: Won-Il Jung , Jun-Won Suh , Yong-Chul Park , Geun-Bae Kim
- Applicant: Won-Il Jung , Jun-Won Suh , Yong-Chul Park , Geun-Bae Kim
- Applicant Address: KR Suwon
- Assignee: Samsung SDI Co., Ltd.
- Current Assignee: Samsung SDI Co., Ltd.
- Current Assignee Address: KR Suwon
- Agency: H.C. Park & Associates, PLC
- Priority: KR10-2004-0007896 20040206
- Main IPC: H01M4/13
- IPC: H01M4/13 ; H01M4/131 ; H01M4/1315 ; H01M4/139 ; H01M4/1391 ; H01M4/13915
Abstract:
The present invention relates to a method of preparing a positive active material for a rechargeable lithium battery. The positive active material includes a lithium/nickel-based compound wherein primary particles having an average particle diameter ranging from 1 μm to 4 μm are agglomerated to form secondary particles. The positive active material of the present invention has excellent electrochemical performance and outstanding inhibition to swelling at high temperatures.
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