Modification of phosphorus-doped carbon coating enhances the electrochemical performance of LiFe0.8Mn0.2PO4 cathode material

doi:10.1016/j.jallcom.2021.160946

IR > 石油化工学院

	Modification of phosphorus-doped carbon coating enhances the electrochemical performance of LiFe0.8Mn0.2PO4 cathode material
	Cui, Xiaoling1,2 ; Tuo, Kuanyou 1; Dong, Hong 1; Fu, Xiaolan 1; Wang, Shimin 1; Zhang, Ningshuang1,2 ; Mao, Liping1,2 ; Li, Shiyou1,2
	2021-12-10
发表期刊	JOURNAL OF ALLOYS AND COMPOUNDS
ISSN	0925-8388
卷号	885
摘要	Overcoming the shortcomings related to low conductivity and slow ion diffusion for olivine-type transition metal phosphates is of vital significance to broaden their applicability in rapid charging devices. Herein, the modification of phosphorus-doped carbon coating is performed on LiFe0.8Mn0.2PO4 (LFMP) to prepare LFMP/C-P via a novel sol-gel hydrothermal method. Results of the morphology and electrochemical performance tests indicate that a three-dimensional conductive channel is formed surrounding the well-distributed LFMP/C-P nanoparticles to promote ion and electron transmission. Moreover, the phosphorusdoped carbon coating not only enhances the electronic conductivity, which guarantees the rapid electronic transfer as an electron donor through the carrier conduction mechanism, but also connects the carbon coating and material bulk as a bridge. These characteristics endow the LFMP/C-P composite with excellent electrochemical performances, e.g., a reversible discharge specific capacity of 93.6 mAh g-1 at 10 C and a capacity retention rate of 86.44% after 700 cycles at 10 C. This study provides a strategy to improve the rapid charge-discharge performance of electrode materials for lithium-ion batteries. (c) 2021 Elsevier B.V. All rights reserved.
关键词	LiFe0 8Mn0 2PoN Carbon coating Phosphorus-doped carbon coating Cathode material Lithium-ion batteries
DOI	10.1016/j.jallcom.2021.160946
收录类别	EI ; SCOPUS ; SCIE
语种	英语
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000692250100003
出版者	ELSEVIER SCIENCE SA
EI入藏号	20212710586798
EI主题词	Carbon
EI分类号	482.2 Minerals - 531 Metallurgy and Metallography - 701.1 Electricity: Basic Concepts and Phenomena - 702.1.2 Secondary Batteries - 804 Chemical Products Generally - 813.2 Coating Materials
来源库	WOS
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/148753
专题	石油化工学院
通讯作者	Li, Shiyou
作者单位	1.Lanzhou Univ Technol, Sch Petrochem Technol, Lanzhou 730050, Peoples R China; 2.Key Lab Low Carbon Energy & Chem Engn Gansu Prov, Lanzhou 730050, Peoples R China
第一作者单位	兰州理工大学
通讯作者单位	兰州理工大学
第一作者的第一单位	兰州理工大学
推荐引用方式 GB/T 7714	Cui, Xiaoling,Tuo, Kuanyou,Dong, Hong,et al. Modification of phosphorus-doped carbon coating enhances the electrochemical performance of LiFe0.8Mn0.2PO4 cathode material[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2021,885.
APA	Cui, Xiaoling.,Tuo, Kuanyou.,Dong, Hong.,Fu, Xiaolan.,Wang, Shimin.,...&Li, Shiyou.(2021).Modification of phosphorus-doped carbon coating enhances the electrochemical performance of LiFe0.8Mn0.2PO4 cathode material.JOURNAL OF ALLOYS AND COMPOUNDS,885.
MLA	Cui, Xiaoling,et al."Modification of phosphorus-doped carbon coating enhances the electrochemical performance of LiFe0.8Mn0.2PO4 cathode material".JOURNAL OF ALLOYS AND COMPOUNDS 885(2021).