Multicore-Shell Bi@N-doped Carbon Nanospheres for High Power Density and Long Cycle Life Sodium- and Potassium-Ion Anodes

doi:10.1002/adfm.201809195

	Multicore-Shell Bi@N-doped Carbon Nanospheres for High Power Density and Long Cycle Life Sodium- and Potassium-Ion Anodes
	Ye, Shufen 1; Yu, Yan 1,2,3; Yang, Hai 1; Xu, Rui 1; Yao, Yu 1; Zhou, Xuefeng 1
刊名	ADVANCED FUNCTIONAL MATERIALS
	2019-03-28
卷号	29 期号:13 页码:11
关键词	bismuth high power density multicore-shell potassium-ion batteries sodium-ion batteries
ISSN号	1616-301X
DOI	10.1002/adfm.201809195
通讯作者	Yu, Yan(yanyumse@ustc.edu.cn)
英文摘要	Bismuth (Bi) is an attractive material as anodes for both sodium-ion batteries (NIBs) and potassium-ion batteries (KIBs), because it has a high theoretical gravimetric capacity (386 mAh g(-1)) and high volumetric capacity (3800 mAh L-1). The main challenges associated with Bi anodes are structural degradation and instability of the solid electrolyte interphase (SEI) resulting from the huge volume change during charge/discharge. Here, a multicore-shell structured Bi@N-doped carbon (Bi@N-C) anode is designed that addresses these issues. The nanosized Bi spheres are encapsulated by a conductive porous N-doped carbon shell that not only prevents the volume expansion during charge/discharge but also constructs a stable SEI during cycling. The Bi@N-C exhibits unprecedented rate capability and long cycle life for both NIBs (235 mAh g(-1) after 2000 cycles at 10 A g(-1)) and KIBs (152 mAh g(-1) at 100 A g(-1)). The kinetic analysis reveals the outstanding electrochemical performance can be attributed to significant pseudocapacitance behavior upon cycling.
资助项目	National Key R&D Research Program of China[2018YFB0905400] ; National Natural Science Foundation of China[51622210] ; National Natural Science Foundation of China[51872277] ; Fundamental Research Funds for the Central Universities[WK3430000004] ; DNL cooperation Fund, CAS[DNL180310]
WOS关键词	ELECTROCHEMICAL ENERGY-STORAGE ; HIGH-CAPACITY ; LITHIUM-ION ; PERFORMANCE ; BATTERY ; BISMUTH ; INTERCALATION ; NANOFIBERS ; NANOWIRES ; GRAPHITE
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000463732400026
资助机构	National Key R&D Research Program of China ; National Key R&D Research Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; DNL cooperation Fund, CAS ; DNL cooperation Fund, CAS ; National Key R&D Research Program of China ; National Key R&D Research Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; DNL cooperation Fund, CAS ; DNL cooperation Fund, CAS ; National Key R&D Research Program of China ; National Key R&D Research Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; DNL cooperation Fund, CAS ; DNL cooperation Fund, CAS ; National Key R&D Research Program of China ; National Key R&D Research Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; DNL cooperation Fund, CAS ; DNL cooperation Fund, CAS
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/165578]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Yu, Yan
作者单位	1.Univ Sci & Technol China, CAS, Hefei Natl Lab Phys Sci Microscale, Dept Mat Sci & Engn,Key Lab Mat Energy Convers, Hefei 230026, Anhui, Peoples R China 2.Chinese Acad Sci, Dalian Natl Lab Clean Energy DNL, Dalian 116023, Liaoning, Peoples R China 3.Univ Sci & Technol China, State Key Lab Fire Sci, Hefei 230026, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Ye, Shufen,Yu, Yan,Yang, Hai,et al. Multicore-Shell Bi@N-doped Carbon Nanospheres for High Power Density and Long Cycle Life Sodium- and Potassium-Ion Anodes[J]. ADVANCED FUNCTIONAL MATERIALS,2019,29(13):11.
APA	Ye, Shufen,Yu, Yan,Yang, Hai,Xu, Rui,Yao, Yu,&Zhou, Xuefeng.(2019).Multicore-Shell Bi@N-doped Carbon Nanospheres for High Power Density and Long Cycle Life Sodium- and Potassium-Ion Anodes.ADVANCED FUNCTIONAL MATERIALS,29(13),11.
MLA	Ye, Shufen,et al."Multicore-Shell Bi@N-doped Carbon Nanospheres for High Power Density and Long Cycle Life Sodium- and Potassium-Ion Anodes".ADVANCED FUNCTIONAL MATERIALS 29.13(2019):11.