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Local Electric Field Facilitates High-Performance Li-Ion Batteries
Liu, Youwen1; Zhou, Tengfei2,3,4,5; Zheng, Yang2,3; He, Zhihai1; Xiao, Chong1; Pang, Wei Kong2,3; Tong, Wei6; Zou, Youming6; Pan, Bicai1; Guo, Zaiping2,3; Xie, Yi1
2017-08-01
发表期刊ACS NANO
卷号11期号:8页码:8519-8526
摘要By scrutinizing the energy storage process in Li-ion batteries, tuning, Li-ion migration behavior by atomic level tailoring will unlock great potential for pursuing higher electrochemical performance. Vacancy, which can effectively modulate the electrical ordering on the nanoscale, even in tiny concentrations, will provide tempting opportunities for manipulating Li-ion migratory behavior. Herein, taking CuGeO3 as a model, oxygen vacancies obtained by reducing the thickness dimension down to the atomic scale are introduced in this work. As the Li-ion storage progresses, the imbalanced charge distribution emerging around the oxygen vacancies could induce a local built-in electric field, which will accelerate the ions' migration rate by Coulomb forces and thus have benefits for high-rate performance. Furthermore, the thus obtained CuGeO3 ultrathin nanosheets (CGOUNs)/graphene van der Waals heterojunctions are used as anodes in Li-ion batteries, which deliver a reversible specific capacity of 1295 mAh g(-1) at 100 mA g(-1), with improved rate capability and cycling performance compared to their bulk counterpart. Our findings build a clear connection between the atomic/defect/electronic structure and intrinsic properties for designing high -efficiency electrode materials.
文章类型Article
关键词Cugeo3 Local Electric Field Oxygen Vacancies Li-ion Migratory Behavior Anode
WOS标题词Science & Technology ; Physical Sciences ; Technology
资助者National Natural Science Foundation of China(21622107 ; National Natural Science Foundation of China(21622107 ; National Basic Research Program of China(2015CB932302) ; National Basic Research Program of China(2015CB932302) ; Youth Innovation Promotion Association CAS(2016392) ; Youth Innovation Promotion Association CAS(2016392) ; Fundamental Research Funds for the Central University(WK2340000075 ; Fundamental Research Funds for the Central University(WK2340000075 ; Australian Research Council (ARC)(DP170102406 ; Australian Research Council (ARC)(DP170102406 ; 21401182 ; 21401182 ; WK2340000063) ; WK2340000063) ; FT150100109 ; FT150100109 ; 21331005 ; 21331005 ; FT160100251) ; FT160100251) ; 11321503 ; 11321503 ; U1532265) ; U1532265) ; National Natural Science Foundation of China(21622107 ; National Natural Science Foundation of China(21622107 ; National Basic Research Program of China(2015CB932302) ; National Basic Research Program of China(2015CB932302) ; Youth Innovation Promotion Association CAS(2016392) ; Youth Innovation Promotion Association CAS(2016392) ; Fundamental Research Funds for the Central University(WK2340000075 ; Fundamental Research Funds for the Central University(WK2340000075 ; Australian Research Council (ARC)(DP170102406 ; Australian Research Council (ARC)(DP170102406 ; 21401182 ; 21401182 ; WK2340000063) ; WK2340000063) ; FT150100109 ; FT150100109 ; 21331005 ; 21331005 ; FT160100251) ; FT160100251) ; 11321503 ; 11321503 ; U1532265) ; U1532265)
DOI10.1021/acsnano.7b04617
关键词[WOS]HIGH-RATE CAPABILITY ; LITHIUM-STORAGE ; OXYGEN VACANCIES ; ENERGY-STORAGE ; ANODE MATERIAL ; ULTRATHIN NANOSHEETS ; NANOPARTICLES ; EVOLUTION ; TRANSITION ; CHALLENGES
收录类别SCI
语种英语
资助者National Natural Science Foundation of China(21622107 ; National Natural Science Foundation of China(21622107 ; National Basic Research Program of China(2015CB932302) ; National Basic Research Program of China(2015CB932302) ; Youth Innovation Promotion Association CAS(2016392) ; Youth Innovation Promotion Association CAS(2016392) ; Fundamental Research Funds for the Central University(WK2340000075 ; Fundamental Research Funds for the Central University(WK2340000075 ; Australian Research Council (ARC)(DP170102406 ; Australian Research Council (ARC)(DP170102406 ; 21401182 ; 21401182 ; WK2340000063) ; WK2340000063) ; FT150100109 ; FT150100109 ; 21331005 ; 21331005 ; FT160100251) ; FT160100251) ; 11321503 ; 11321503 ; U1532265) ; U1532265) ; National Natural Science Foundation of China(21622107 ; National Natural Science Foundation of China(21622107 ; National Basic Research Program of China(2015CB932302) ; National Basic Research Program of China(2015CB932302) ; Youth Innovation Promotion Association CAS(2016392) ; Youth Innovation Promotion Association CAS(2016392) ; Fundamental Research Funds for the Central University(WK2340000075 ; Fundamental Research Funds for the Central University(WK2340000075 ; Australian Research Council (ARC)(DP170102406 ; Australian Research Council (ARC)(DP170102406 ; 21401182 ; 21401182 ; WK2340000063) ; WK2340000063) ; FT150100109 ; FT150100109 ; 21331005 ; 21331005 ; FT160100251) ; FT160100251) ; 11321503 ; 11321503 ; U1532265) ; U1532265)
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science
WOS类目Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号WOS:000408520900107
引用统计
被引频次:21[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.hfcas.ac.cn:8080/handle/334002/33654
专题中科院强磁场科学中心
作者单位1.Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, CAS Ctr Excellence Nanosci, iCHEM, Hefei 230026, Anhui, Peoples R China
2.Univ Wollongong, Inst Superconding & Elect Mat, AIIM, North Wollongong, NSW 2500, Australia
3.Univ Wollongong, Sch Mech Mat & Mechatron Engn, Fac Engn & Informat Sci, North Wollongong, NSW 2500, Australia
4.South Cent Univ Nationalities, Key Lab Catalysis & Mat Sci, State Ethn Affairs Commiss, Wuhan 430074, Hubei, Peoples R China
5.South Cent Univ Nationalities, Minist Educ, Wuhan 430074, Hubei, Peoples R China
6.Chinese Acad Sci, High Magnet Field Lab, Hefei 230031, Anhui, Peoples R China
推荐引用方式
GB/T 7714
Liu, Youwen,Zhou, Tengfei,Zheng, Yang,et al. Local Electric Field Facilitates High-Performance Li-Ion Batteries[J]. ACS NANO,2017,11(8):8519-8526.
APA Liu, Youwen.,Zhou, Tengfei.,Zheng, Yang.,He, Zhihai.,Xiao, Chong.,...&Xie, Yi.(2017).Local Electric Field Facilitates High-Performance Li-Ion Batteries.ACS NANO,11(8),8519-8526.
MLA Liu, Youwen,et al."Local Electric Field Facilitates High-Performance Li-Ion Batteries".ACS NANO 11.8(2017):8519-8526.
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