A comparison of preparation method on the electrochemical performance of cathode material Li Li(02)Mn(054)Ni(013)Co(013) O(2) for lithium ion battery

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	A comparison of preparation method on the electrochemical performance of cathode material Li Li(02)Mn(054)Ni(013)Co(013) O(2) for lithium ion battery
	Zheng, J. M. ; Wu, X. B. ; Yang, Y. ; Yang Y(杨勇)
刊名	http://dx.doi.org/10.1016/j.electacta.2010.12.049
	2011-03-01
关键词	HIGH-CAPACITY SURFACE MODIFICATION SECONDARY BATTERIES ANOMALOUS CAPACITY COBALT OXIDES CO ELECTRODES MN NI COPRECIPITATION LI
英文摘要	National Natural Science Foundation of China [20873115]; National Basic Research Program of China (973 program) [2007CB209702]; Li[Li0.2Mn0.54Ni0.13Co0.13]O-2 as a cathode material for Li-ion battery has been successfully prepared by co-precipitation (CP), sol-gel (SG) and sucrose combustion (SC) methods. The prepared materials were characterized by XRD, SEM, BET and electrochemical measurements. The XRD result shows that the Li[Li0.2Mn0.54Ni0.13Co0.13]O-2 materials prepared by different methods all form a pure phase with good crystallinity. SEM images and BET data present that the SC-material exhibited the smallest particle size (ca. 0.1 mu m) and the highest surface area (7.4635 m(2) g(-1)). The tap density of SC-material is lower than that of CP- and SG-materials. The result of rate performance tests indicates that the SC-material showed the best rate capability with the highest discharge capacity of 178 mAh g(-1) at 5.0 C, followed by SG-material and then CP-material. However, the cycling stability of SC-material tested at 0.1 and 0.5 C is relatively poor as compared to that of SG-material and CP-material. The result of EIS measurements reveals that large surface area and small particle size of the SC-electrode result in more SEI layer formation because of the increased side reactions with the electrolyte during cycling, which deteriorates the electrode/electrolyte interface and thus leads to the faster capacity fading of the SC-material. (C) 2010 Elsevier Ltd. All rights reserved.
语种	英语
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/62326]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Zheng, J. M.,Wu, X. B.,Yang, Y.,et al. A comparison of preparation method on the electrochemical performance of cathode material Li Li(02)Mn(054)Ni(013)Co(013) O(2) for lithium ion battery[J]. http://dx.doi.org/10.1016/j.electacta.2010.12.049,2011.
APA	Zheng, J. M.,Wu, X. B.,Yang, Y.,&杨勇.(2011).A comparison of preparation method on the electrochemical performance of cathode material Li Li(02)Mn(054)Ni(013)Co(013) O(2) for lithium ion battery.http://dx.doi.org/10.1016/j.electacta.2010.12.049.
MLA	Zheng, J. M.,et al."A comparison of preparation method on the electrochemical performance of cathode material Li Li(02)Mn(054)Ni(013)Co(013) O(2) for lithium ion battery".http://dx.doi.org/10.1016/j.electacta.2010.12.049 (2011).