Kinetic study on LiFePO4/C nanocomposites synthesized by solid state technique

被引：269
作者：
Liu, H.
Li, C.
Zhang, H. P.
Fu, L. J.
Wu, Y. P. [1 ]
Wu, H. Q.
机构：
[1] Fudan Univ, Dept Chem, Shanghai 200433, Peoples R China
[2] Fudan Univ, Shanghai Key Lab Mol Catalysis & Innovat Mat, Shanghai 200433, Peoples R China
来源：
JOURNAL OF POWER SOURCES | 2006年 / 159卷 / 01期
关键词：
lithium ion battery; LiFePO4; carbon; nanocomposite; lithium ion diffusion; PHOSPHO-OLIVINES; LITHIUM; PERFORMANCE;
D O I：
10.1016/j.jpowsour.2005.10.098
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：
Well-crystallized, homogeneous nanocomposites of lithium iron(H) phosphate and carbon was synthesized by solid state reaction, and the obtained particles are spherical. Measurement of both CV and EIS shows that the lithium ion diffusion coefficient in the nanocomposites is affected by the incorporated carbon, and markedly increases with the carbon content. Meanwhile, the kinetics of lithium intercalation and de-intercalation is greatly ameliorated. These data provide strong evidence of the potential use of this kind of nanocomposite cathode in lithium ion battery. (c) 2005 Elsevier B.V. All rights reserved.
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收藏
页码：717 / 720
页数：4
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