A new composite anode, Fe-Cu-Si/C for lithium ion battery

被引：21

作者：

Doh, Chil-Hoon ^{[1
]}

Shin, Hye-Min ^{[1
,2
]}

Kim, Dong-Hun ^{[1
,3
]}

Jeong, Young-Dong ^{[1
]}

Moon, Seong-In ^{[1
]}

Jin, Bong-Soo ^{[1
]}

Kim, Hyun-Soo ^{[1
]}

Kim, Ki-Won ^{[3
]}

Oh, Dae-Hee ^{[2
]}

Veluchamy, Angathevar ^{[1
,4
]}

机构：

[1] Korea Electrotechnol Res Inst, Chang Won 641600, South Korea

[2] Pukyong Natl Univ, Pusan 608739, South Korea

[3] Gyeonsang Natl Univ, Jinju 600701, South Korea

[4] Cent Electrochem Res Inst, Karaikkudi 630006, Tamil Nadu, India

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2008年 / 461卷 / 1-2期

关键词：

high energy mechanical milling; Fe-Cu-Si/graphite composite; anode; Li-ion battery; irreversible capacity loss;

D O I：

10.1016/j.jallcom.2007.06.125

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 composite material comprising Fe, Cu and Si in conjunction with graphite has been obtained through high energy ball milling (HEBM) technique. The X-ray diffraction (XRD) analysis predicts that the milled composite particles remain in the elemental state and the scanning electron microscope (SEM) pictures show that the electrode annealed at 200 degrees C consists of well-defined aggregate particulates with interspaces. The composite electrode exhibits high initial discharge and charge capacity of 809 and 464 mAh g(-1), respectively with a sustainable reversible capacity >385 mAh g(-1) at 30th cycle and maintains high coulombic efficiency >95% after 4th cycle. As the annealing temperature is changed from 110 to >150 degrees C, the irreversible capacity increased from 158 to 340 mAh g(-1). (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：321 / 325

页数：5

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