Invention Grant
US08906555B2 Negative active material for rechargeable lithium battery and rechargeable lithium battery comprising same
有权
用于可再充电锂电池的负极活性材料和包含它的可充电锂电池
- Patent Title: Negative active material for rechargeable lithium battery and rechargeable lithium battery comprising same
- Patent Title (中): 用于可再充电锂电池的负极活性材料和包含它的可充电锂电池
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Application No.: US13670215Application Date: 2012-11-06
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Publication No.: US08906555B2Publication Date: 2014-12-09
- Inventor: Cheol-Hee Hwang , Bong-Chull Kim , Se-Ho Park , Dong-Yung Kim
- Applicant: Samsung Display Co., Ltd.
- 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: Knobbe Martens Olson & Bear LLP
- Priority: KR10-2009-0039791 20090507
- Main IPC: H01M4/13
- IPC: H01M4/13 ; H01M4/58

Abstract:
A negative active material for a rechargeable lithium battery includes: a crystalline carbon core including pores; an amorphous carbon shell positioned on the core surface; metal nanoparticles dispersed inside the pores; and amorphous carbon inside the pores, wherein a first particle diameter difference (D50−D10) of the nanoparticles is from about 70 to about 150 nm and the second particle diameter difference (D90−D50) of the nanoparticles is from about 440 to about 520 nm.
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