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High performance binder-free quaternary composite CuO/Cu/TiO2NT/Ti anode for lithium ion battery
被引:24
|作者:
Meng, Ruijin
[1
]
Hou, Hongying
[1
]
Liu, Xianxi
[2
]
Yan, Cuixia
[1
]
Duan, Jixiang
[1
]
Liu, Song
[1
]
机构:
[1] Kunming Univ Sci & Technol, Fac Mat Sci & Engn, Kunming 650093, Peoples R China
[2] Kunming Univ Sci & Technol, Fac Mech & Elect Engn, Kunming 650093, Peoples R China
基金:
中国国家自然科学基金;
关键词:
Binder-free quaternary composite;
CuO/Cu/TiO2NT/Ti;
Anode active material;
Lithium ion battery;
TIO2;
NANOTUBE;
CUO;
FABRICATION;
SUBSTRATE;
ELECTRODE;
NANOSHEETS;
REDUCTION;
ARRAYS;
CU2O;
D O I:
10.1016/j.ceramint.2015.12.160
中图分类号:
TQ174 [陶瓷工业];
TB3 [工程材料学];
学科分类号:
0805 ;
080502 ;
摘要:
High performance binder-free quaternary composite CuO/Cu/TiO2 nanotube/Ti (CuO/Cu/TiO2NT/Ti) electrode for lithium ion battery was designed and synthesized via anodization, electrodeposition and thermal oxidation at 450 degrees C in the air. The as-prepared binder-free quaternary composite CuO/Cu/TiO2NT/Ti electrode was studied in terms of XRD, XPS, SEM, EDX, galvanostatic charge/discharge, cycle stability, cyclic voltammetry (CV) and AC impedance. As expected, the binder-free quaternary composite CuO/Cu/TiO2NT/Ti electrode displayed much higher discharge capacity, cycle stability, Li+ diffusion coefficient than bare TiO2NT/Ti electrode. High Li-storage activity of CuO, high conductivity of Cu and the synergy effect among various components should be responsible for improved electrochemical performances. Additionally, binder free combination of the various components may also contribute into the modifications due to the exclusion of negative effect of polymer binder. (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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页码:6039 / 6045
页数:7
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