Nitrogen-doped carbon coated LiNi0.6Co0.2Mn0.2O2 cathode with enhanced electrochemical performance for Li-Ion batteries

被引:45
作者
Chen, Xian [1 ]
Ma, Feng [1 ]
Li, Yuyu [1 ]
Liang, Jiashun [1 ]
Matthews, Bryan [2 ]
Sokolowski, Joshua [2 ]
Han, Jiantao [1 ]
Wu, Gang [2 ]
Lu, Xing [1 ]
Li, Qing [1 ]
机构
[1] Huazhong Univ Sci & Technol, State Key Lab Mat Proc & Die & Mould Technol, Sch Mat Sci & Engn, Wuhan 430074, Peoples R China
[2] SUNY Buffalo, Dept Chem & Biol Engn, Buffalo, NY 14260 USA
基金
美国国家科学基金会;
关键词
Nickel-rich layered cathode; Surface coating; Nitrogen-doped carbon; Lithium ion batteries; Energy storage; IMPROVED THERMAL-STABILITY; RICH LINI0.6CO0.2MN0.2O2; CYCLING PERFORMANCE; ELECTRODE MATERIALS; LITHIUM; IMPROVEMENT; VOLTAGE; CHEMISTRY; CAPACITY; LICOO2;
D O I
10.1016/j.electacta.2018.07.183
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
LiNi0.6Co0.2Mn0.2O2 has attracted considerable attention as a high-performance cathode material for lithium ion batteries due to its relatively high specific capacity and low cost. However, structural instability and side reactions at the surface, which occur during the charge/discharge process, largely limit its performance. Here, we introduce a nanoscale nitrogen-doped carbon layer at the surface of the LiNi0.6Co0.2Mn0.2O2 particles by using simple mechanical activation and pyrolysis methods. Systematic characterization indicates that a nitrogen-doped carbon layer approximately 16 nm thick is uniformly coated on the LiNi0.6Co0.2Mn0.2O2 particles. It has been proved beneficial to stabilize the layered structure of the LiNi0.6Co0.2Mn0.2O2 with less cation disorder and residual lithium at the surface. The nitrogen-doped carbon-coated LiNi0.6Co0.2Mn0.2O2 exhibited a capacity retention of 92% after 100 cycles from 3.0 to 4.5 V at 1 C, and a discharge capacity of 156 mAh g(-1) at 5 C (78% of the capacity at 0.2 C), which is superior to the pristine LiNi0.6Co0.2Mn0.2O2 in this work and most other reported LiNi0.6Co0.2Mn0.2O2 cathodes. The improved electrochemical properties of the nitrogen-doped, carbon-coated cathode can be attributed to the higher degree of cation ordering, relieved side reactions between the cathode and electrolyte, and increased electronic conductivity. (C) 2018 Elsevier Ltd. All rights reserved.
引用
收藏
页码:526 / 533
页数:8
相关论文
共 42 条
[21]   One strategy to enhance electrochemical properties of Ni-based cathode materials under high cut-off voltage for Li-ion batteries [J].
Liang, Longwei ;
Jiang, Feng ;
Cao, Yanbing ;
Hu, Guorong ;
Du, Ke ;
Peng, Zhongdong .
JOURNAL OF POWER SOURCES, 2016, 328 :422-432
[22]   Origin of deterioration for LiNiO2 cathode material during storage in air [J].
Liu, HS ;
Zhang, ZR ;
Gong, ZL ;
Yang, Y .
ELECTROCHEMICAL AND SOLID STATE LETTERS, 2004, 7 (07) :A190-A193
[23]   Enhancing Electrochemical Performance of LiNi0.6Co0.2Mn0.2O2 by Lithium-ion Conductor Surface Modification [J].
Liu, Siyang ;
Zhang, Congcong ;
Su, Qili ;
Li, Liangyu ;
Su, Junming ;
Huang, Tao ;
Chen, Yanbin ;
Yu, Aishui .
ELECTROCHIMICA ACTA, 2017, 224 :171-177
[24]   Nickel-Rich Layered Lithium Transition-Metal Oxide for High-Energy Lithium-Ion Batteries [J].
Liu, Wen ;
Oh, Pilgun ;
Liu, Xien ;
Lee, Min-Joon ;
Cho, Woongrae ;
Chae, Sujong ;
Kim, Youngsik ;
Cho, Jaephil .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2015, 54 (15) :4440-4457
[25]   Study of lithium ion intercalation/de-intercalation into LiNi1/3Mn1/3Co1/3O2 in aqueous solution using electrochemical impedance spectroscopy [J].
Mahesh, K. C. ;
Manjunatha, H. ;
Venkatesha, T. V. ;
Suresh, G. S. .
JOURNAL OF SOLID STATE ELECTROCHEMISTRY, 2012, 16 (09) :3011-3025
[26]   COMPARATIVE-STUDY OF LICOO2, LINI1/2CO1/2O2 AND LINIO2 FOR 4-VOLT SECONDARY LITHIUM CELLS [J].
OHZUKU, T ;
UEDA, A ;
NAGAYAMA, M ;
IWAKOSHI, Y ;
KOMORI, H .
ELECTROCHIMICA ACTA, 1993, 38 (09) :1159-1167
[27]   Improvement of electrochemical performance of nickel rich LiNi0.6Co0.2Mn0.2O2 cathode active material by ultrathin TiO2 coating [J].
Qin, CanCan ;
Cao, Jiali ;
Chen, Jun ;
Dai, Gaole ;
Wu, TongFu ;
Chen, Yanbin ;
Tang, YueFeng ;
Li, AiDong ;
Chen, Yanfeng .
DALTON TRANSACTIONS, 2016, 45 (23) :9669-9675
[28]   Structure and electrochemical performance of CaF2 coated LiMn1/3Ni1/3Co1/3O2 cathode material for Li-ion batteries [J].
Shi, S. J. ;
Tu, J. P. ;
Mai, Y. J. ;
Zhang, Y. Q. ;
Tang, Y. Y. ;
Wang, X. L. .
ELECTROCHIMICA ACTA, 2012, 83 :105-112
[29]   Reduced Graphene Oxide-Wrapped Nickel-Rich Cathode Materials for Lithium Ion Batteries [J].
Shim, Jae-Hyun ;
Kim, Young-Min ;
Park, Miji ;
Kim, Jongsik ;
Lee, Sanghun .
ACS APPLIED MATERIALS & INTERFACES, 2017, 9 (22) :18720-18729
[30]   Effect of AIF3 coating amount on high voltage cycling performance of LiCoO2 [J].
Sun, Y. -K. ;
Cho, S. -W. ;
Myung, S. -T. ;
Amine, K. ;
Prakash, Jai .
ELECTROCHIMICA ACTA, 2007, 53 (02) :1013-1019