中文版 | English
题名

Selective dopant segregation modulates mesoscale reaction kinetics in layered transition metal oxide

作者
通讯作者Huang,Xiaojing; Huang,Xiaojing; Huang,Xiaojing
共同第一作者Qian,Guannan; Huang,Hai; Hou,Fuchen; Qian,Guannan; Huang,Hai; Hou,Fuchen; Qian,Guannan; Huang,Hai; Hou,Fuchen
发表日期
2021-06-01
DOI
发表期刊
ISSN
2211-2855
卷号84
摘要

Incorporation of foreign elements into the cathode material is broadly adopted by both academia and industry to improve the battery performance. The lack of an in-depth understanding for the underlying mechanism, however, makes it a largely try-and-error process with unsatisfactory efficiency and effectiveness. This is particularly true for the electrochemical reaction kinetics that is heterogeneous over a broad range of length scales and is determined collectively by the cathode's electronic structure, lattice configuration, and micro-morphology. Here we unveiled a facet-dependent dopant segregation effect in Zr-modified single-crystal LiNiCoMnO cathode. By forming kinetically favored corners on the cathode particles, the presence of a trace amount of Zr critically modulates the mesoscale reaction kinetics. Our findings suggest that a delicately controlled dopant distribution is a viable strategy for designing the next-generation battery cathode with superior structural and chemical robustness.

关键词
相关链接[Scopus记录]
收录类别
SCI ; EI
语种
英语
学校署名
共同第一 ; 其他
WOS记录号
WOS:000649703500001
EI入藏号
20210910001806
EI主题词
Association Reactions ; Cathodes ; Cobalt Compounds ; Electric Batteries ; Electronic Structure ; Kinetics ; Lithium Compounds ; Manganese Compounds ; Nickel Compounds ; Segregation (Metallography) ; Single Crystals ; Transition Metal Oxides ; Transition Metals ; Zirconium Compounds
EI分类号
Metallurgy And Metallography:531 ; Metallography:531.2 ; Electric Batteries:702.1 ; Chemical Reactions:802.2 ; Classical Physics ; Quantum Theory ; Relativity:931 ; Crystalline Solids:933.1
Scopus记录号
2-s2.0-85101633923
来源库
Scopus
引用统计
被引频次[WOS]:51
成果类型期刊论文
条目标识符http://sustech.caswiz.com/handle/2SGJ60CL/221471
专题理学院_物理系
工学院_材料科学与工程系
作者单位
1.Department of Chemical Engineering,Shanghai Electrochemical Energy Device Research Center (SEED),Shanghai Jiao Tong University,Shanghai,200240,China
2.Stanford Synchrotron Radiation Lightsource,SLAC National Accelerator Laboratory,Menlo Park,94025,United States
3.National Synchrotron Light Source II,Brookhaven National Laboratory,Upton,11973,United States
4.Department of Physics and Shenzhen Key Laboratory of for Advanced Quantum Functional Materials and Devices,Southern University of Science and Technology,Shenzhen,518055,China
5.Department of Materials Science,Fudan University,Shanghai,200433,China
6.Key Laboratory of Quantum Information,University of Science and Technology of China,Hefei,230026,China
7.Department of Chemical Engineering,Shanghai Electrochemical Energy Device Research Center (SEED),Shanghai Jiao Tong University,Shanghai,200240,China
8.Stanford Synchrotron Radiation Lightsource,SLAC National Accelerator Laboratory,Menlo Park,94025,United States
9.National Synchrotron Light Source II,Brookhaven National Laboratory,Upton,11973,United States
10.Department of Physics and Shenzhen Key Laboratory of for Advanced Quantum Functional Materials and Devices,Southern University of Science and Technology,Shenzhen,518055,China
11.Department of Materials Science,Fudan University,Shanghai,200433,China
12.Key Laboratory of Quantum Information,University of Science and Technology of China,Hefei,230026,China
13.Department of Chemical Engineering,Shanghai Electrochemical Energy Device Research Center (SEED),Shanghai Jiao Tong University,Shanghai,200240,China
14.Stanford Synchrotron Radiation Lightsource,SLAC National Accelerator Laboratory,Menlo Park,94025,United States
15.National Synchrotron Light Source II,Brookhaven National Laboratory,Upton,11973,United States
16.Department of Physics and Shenzhen Key Laboratory of for Advanced Quantum Functional Materials and Devices,Southern University of Science and Technology,Shenzhen,518055,China
17.Department of Materials Science,Fudan University,Shanghai,200433,China
18.Key Laboratory of Quantum Information,University of Science and Technology of China,Hefei,230026,China
推荐引用方式
GB/T 7714
Qian,Guannan,Huang,Hai,Hou,Fuchen,et al. Selective dopant segregation modulates mesoscale reaction kinetics in layered transition metal oxide[J]. Nano Energy,2021,84.
APA
Qian,Guannan.,Huang,Hai.,Hou,Fuchen.,Wang,Weina.,Wang,Yong.,...&Liu,Yijin.(2021).Selective dopant segregation modulates mesoscale reaction kinetics in layered transition metal oxide.Nano Energy,84.
MLA
Qian,Guannan,et al."Selective dopant segregation modulates mesoscale reaction kinetics in layered transition metal oxide".Nano Energy 84(2021).
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