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Hierarchical hollow structured lithium nickel cobalt manganese oxide microsphere synthesized by template-sacrificial route as high performance cathode for lithium ion batteries
被引:30
作者:
Xu, Chun-Liu
[1
]
Xiang, Wei
[2
,3
]
Wu, Zhen-Guo
[1
]
Xu, Ya-Di
[1
]
Li, Yong-Chun
[1
]
Li, Hong-Tai
[1
]
Xiao, Yao
[1
]
Tan, Bo-Chuan
[4
]
Guo, Xiao-Dong
[1
]
Zhong, Ben-He
[1
]
机构:
[1] Sichuan Univ, Sch Chem Engn, Chengdu 610065, Sichuan, Peoples R China
[2] Chengdu Univ Technol, Coll Mat & Chem & Chem Engn, Chengdu 610059, Sichuan, Peoples R China
[3] Ruyuan Hec Technol Corp, Postdoctoral Mobile Res Ctr, Ruyuan 512000, Guangdong, Peoples R China
[4] Chongqing Univ, Sch Chem & Chem Engn, Chongqing 400044, Peoples R China
基金:
中国国家自然科学基金;
关键词:
LiNi0.4Co0.2Mn0.4O2 cathode materials;
Hierarchical structure;
Hollow microsphere;
Solvothermal;
Template-sacrificial route;
HIGH-RATE CAPABILITY;
ELECTROCHEMICAL PERFORMANCE;
DESIGNED SYNTHESIS;
ANODE MATERIALS;
LINI1/3CO1/3MN1/3O2;
SPHERES;
LI1.2NI0.2MN0.6O2;
COPRECIPITATION;
CRYSTALLINE;
MNCO2O4;
D O I:
10.1016/j.jallcom.2018.10.380
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
Materials with micro-nano hierarchical structure have shown excellent electrochemical performance for lithium ion batteries because of the favorable electron/ionic transportation provided by the unique geometrical structure. In this work, hierarchical LiNi0.4Co0.2Mn0.4O2 hollow microsphere is synthesized by a template-sacrificial route using porous CoMn2O4 template, which is prepared by pyrolysis of solvothermal synthesized Co1/3Mn2/3CO3 precursor. The influence of synthesis parameters in solvothermal reaction and high temperature calcining on the morphology of particles is systematically investigated. Benefiting from the desired micro-nano hierarchical porous hollow structure and well-ordered crystal structure, the LiNi0.4Co0.2Mn0.4O2 hollow microsphere exhibits excellent electrochemical performance and favorable Li+ extraction/insertion kinetics. (C) 2018 Elsevier B.V. All rights reserved.
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页码:434 / 442
页数:9
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