Invention Grant
- Patent Title: Method for preparing positive active material for lithium ion secondary battery, positive active material prepared thereby, and lithium ion secondary battery including the same
- Patent Title (中): 制备锂离子二次电池用正极活性物质的方法，由其制备的正极活性物质和包括其的锂离子二次电池
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Application No.: US13449109Application Date: 2012-04-17
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Publication No.: US09325006B2Publication Date: 2016-04-26
- Inventor: Yun Ju Cho , Pil Sang Yun , Mi Sun Lee , Hae In Cho
- Applicant: Yun Ju Cho , Pil Sang Yun , Mi Sun Lee , Hae In Cho
- Applicant Address: KR Yongin-si, Gyeonggi-do
- Assignee: SAMSUNG SDI CO., LTD.
- Current Assignee: SAMSUNG SDI CO., LTD.
- Current Assignee Address: KR Yongin-si, Gyeonggi-do
- Agency: Lee & Morse, P.C.
- Priority: KR10-2011-0041388 20110502
- Main IPC: H01M4/485
- IPC: H01M4/485 ; H01M2/14 ; H01M4/505 ; C01D1/20 ; C01D1/22 ; C01G1/02 ; H01M4/525
Abstract:
A method for preparing a positive active material for a lithium ion secondary battery, the method including obtaining a mixture by mixing a lithium containing compound and metal oxide, distributing powder of a lithium containing compound into a furnace, and heat treating the mixture in the furnace, wherein a thermal decomposition temperature of the lithium containing compound power distributed into the furnace is lower than that of the lithium containing compound mixed with the metal oxide.
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