Optimizing LiFePO4@C Core-Shell Structures via the 3-Aminophenol-Formaldehyde Polymerization for Improved Battery Performance

doi:10.1021/am506860e

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	Optimizing LiFePO4@C Core-Shell Structures via the 3-Aminophenol-Formaldehyde Polymerization for Improved Battery Performance
	Chi, Zi-xiang 1,2; Zhang, Wei 1,2; Wang, Xu-sheng 3; Cheng, Fu-quan 3; Chen, Ji-tao 3; Cao, An-min1,2 ; Wan, Li-Jun 1,2
刊名	ACS APPLIED MATERIALS & INTERFACES
	2014-12-24
卷号	6 期号:24 页码:22719-22725
关键词	Core-shell Structure Lithium Ion Batteries Carbon Coating Iron Dissolution Cathode Materials
ISSN号	1944-8244
DOI	10.1021/am506860e
英文摘要	Polyanion-type cathode materials are well-known for their low electronic conductivity; accordingly, the addition of conductive carbon in the cathode materials becomes an indispensable step for their application in lithium ion batteries. To maximize the contribution of carbon, a core-shell structure with a full coverage of carbon should be favorable due to an improved electronic contact between different particles. Here, we report the formation of a uniform carbon nanoshell on a typical cathode material, LiFePO4, with the shell thickness precisely defined via the 3-aminophenol-formaldehyde polymerization process. In addition to the higher discharge capacity and the improved rate capability as expected from the carbon nanoshell, we identified that the core-shell configuration could lead to a much safer cathode material as revealed by the obviously reduced iron dissolution, much less heat released during the cycling, and better cyclability at high temperature.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000347139400117
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/51995]
专题	中国科学院化学研究所
通讯作者	Cao, An-min
作者单位	1.Chinese Acad Sci, Key Lab Mol Nanostruct & Nanotechnol, Inst Chem, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Beijing 100190, Peoples R China 3.Peking Univ, Coll Chem & Mol Engn, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Chi, Zi-xiang,Zhang, Wei,Wang, Xu-sheng,et al. Optimizing LiFePO4@C Core-Shell Structures via the 3-Aminophenol-Formaldehyde Polymerization for Improved Battery Performance[J]. ACS APPLIED MATERIALS & INTERFACES,2014,6(24):22719-22725.
APA	Chi, Zi-xiang.,Zhang, Wei.,Wang, Xu-sheng.,Cheng, Fu-quan.,Chen, Ji-tao.,...&Wan, Li-Jun.(2014).Optimizing LiFePO4@C Core-Shell Structures via the 3-Aminophenol-Formaldehyde Polymerization for Improved Battery Performance.ACS APPLIED MATERIALS & INTERFACES,6(24),22719-22725.
MLA	Chi, Zi-xiang,et al."Optimizing LiFePO4@C Core-Shell Structures via the 3-Aminophenol-Formaldehyde Polymerization for Improved Battery Performance".ACS APPLIED MATERIALS & INTERFACES 6.24(2014):22719-22725.