Invention Application
WO2012071914A1 NEGATIVE ACTIVE MATERIAL, METHOD FOR PREPARING THE SAME AND LITHIUM ION BATTERY COMPRISING THE SAME
审中-公开
负极活性材料，其制备方法和包含其的锂离子电池
- Patent Title: NEGATIVE ACTIVE MATERIAL, METHOD FOR PREPARING THE SAME AND LITHIUM ION BATTERY COMPRISING THE SAME
- Patent Title (中): 负极活性材料，其制备方法和包含其的锂离子电池
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Application No.: PCT/CN2011/078950Application Date: 2011-08-25
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Publication No.: WO2012071914A1Publication Date: 2012-06-07
- Inventor: MA, Yongjun , TU, Pei , GUO, Zizhu
- Applicant: BYD COMPANY LIMITED , MA, Yongjun , TU, Pei , GUO, Zizhu
- Applicant Address: No. 3009 BYD Road, Pingshan Shenzhen, Guangdong 518118 CN
- Assignee: BYD COMPANY LIMITED,MA, Yongjun,TU, Pei,GUO, Zizhu
- Current Assignee: BYD COMPANY LIMITED,MA, Yongjun,TU, Pei,GUO, Zizhu
- Current Assignee Address: No. 3009 BYD Road, Pingshan Shenzhen, Guangdong 518118 CN
- Agency: TSINGYIHUA INTELLECTUAL PROPERTY LLC
- Priority: CN201010565500.1 20101130
- Main IPC: H01M4/583
- IPC: H01M4/583 ; H01M4/587 ; H01M4/48 ; H01M10/052
Abstract:
A negative active material, a method for preparing the negative active material and a lithium ion battery comprising the same are provided. The negative active material may comprise: a core, an intermediate layer consisting of a first material and an outmost layer consisting of a second material, which is coated on a surface of the intermediate layer. The first material may be at least one selected from the group consisting of the elements that form alloys with lithium, and the second material may be at least one selected from the group consisting of transition metal oxides, transition metal nitrides and transition metal sulfides.
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