A new SiO/C anode composition for lithium-ion battery

被引:115
|
作者
Doh, Chil-Hoon [1 ]
Park, Chul-Wan [2 ]
Shin, Hye-Min [1 ]
Kim, Dong-Hun [1 ]
Chung, Young-Dong [1 ]
Moon, Seong-In [1 ]
Jin, Bong-Soo [1 ]
Kim, Hyun-Soo [1 ]
Veluchamy, Angathevar [1 ,3 ]
机构
[1] Korea Electrotechnol Res Inst, Chang Won 641120, South Korea
[2] SODIFF New Mat, Youngju 750080, South Korea
[3] Cent Electrochem Res Inst, Karaikkudi 630006, Tamil Nadu, India
关键词
high energy ball milling; SiO/graphite composite; anode; li-ion battery;
D O I
10.1016/j.jpowsour.2007.12.074
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A new anode composition comprising SiO and graphite(C) is prepared through a high-energy ball milling process. During the first cycle, the anode delivers high discharge and charge capacity values of 1556 and 693 mAh g(-1), respectively. The electrode shows a reversible charge capacity value of 688 mAh g(-1) at the 30th cycle with 99% Coulombic efficiency. X-ray diffraction analysis reveals that ball milling does not produce any new compound, but only causes a reduction in particle size. The irreversible and reversible capacities appear to be interdependent. (C) 2008 Published by Elsevier B.V.
引用
收藏
页码:367 / 370
页数:4
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