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Carbon nanotube-modified LiFePO4 for high rate lithium ion batteries
W. B. Luo; L. Wen; H. Z. Luo; R. S. Song; Y. C. Zhai; C. Liu; F. Li
2014
Source PublicationNew Carbon Materials
ISSN1007-8827
Volume29Issue:4Pages:287-294
AbstractA hybrid cathode material for high rate lithium ion batteries was prepared by ball-milling and spray-drying a slurry containing LiFePO4 nanoparticles, glucose and carbon nanotubes (CNTs) in water, followed by pyrolysis at 600 degrees C for 6 h under a gas mixture of 5% H-2 in Ar. CNTs with a large aspect ratio form a continuous conductive network connecting the LiFePO4 nanoparticles and amorphous carbon, which significantly reduces the electrical resistance of the cathode. The hybrid material can deliver a specific capacity of 99 mAh/g at a 50 C charge/discharge rate. An excellent cycling performance was also demonstrated, with a capacity loss of less than 10% after 450 cycles at a 10 C rate.
description.department[luo wen-bin ; wen lei ; song ren-sheng ; liu chang ; li feng] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110004, peoples r china. [luo wen-bin ; zhai yu-chun] northeastern univ, sch met & mat, shenyang 110004, peoples r china. [luo hong-ze] csir, za-0001 pretoria, south africa. ; li, f (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110004, peoples r china. ; w1368@uowmail.edu.au ; ffi@imr.ac.cn
KeywordLifepo4 Carbon Nanotubes Conductive Framework High Rate Cathode Materials Coated Lifepo4 Electrochemical Properties Composite Electrodes Cathode Materials Iron Phosphate Nanoparticles Performance Storage Lini0.7co0.3o2 Capacity
URL查看原文
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/73333
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
W. B. Luo,L. Wen,H. Z. Luo,et al. Carbon nanotube-modified LiFePO4 for high rate lithium ion batteries[J]. New Carbon Materials,2014,29(4):287-294.
APA W. B. Luo.,L. Wen.,H. Z. Luo.,R. S. Song.,Y. C. Zhai.,...&F. Li.(2014).Carbon nanotube-modified LiFePO4 for high rate lithium ion batteries.New Carbon Materials,29(4),287-294.
MLA W. B. Luo,et al."Carbon nanotube-modified LiFePO4 for high rate lithium ion batteries".New Carbon Materials 29.4(2014):287-294.
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