Enhanced electrochemical performance of layered Li-rich cathode materials for lithium ion batteries via aluminum and boron dual-doping

被引:59
作者
Peng, Zhongdong [1 ]
Mu, Kunchang [1 ]
Cao, Yanbing [1 ]
Xu, Lian [1 ]
Du, Ke [1 ]
Hu, Guorong [1 ]
机构
[1] Cent S Univ, Sch Met & Environm, Changsha 410083, Hunan, Peoples R China
关键词
Li-rich cathode materials; Al-B dual-doping; Electrochemical performance; PHASE-TRANSFORMATION; CYCLING STABILITY; MN; VOLTAGE; LINI0.8CO0.1MN0.1O2; SHELL;
D O I
10.1016/j.ceramint.2018.11.087
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
Lithium-rich layer oxides can possess satisfactory specific capacity but suffer from severe voltage attenuation and poor cycle stability. In this work, Al-B dual-doping technique is introduced to modify Li-rich layered oxide cathode materials. Cross-section scanning electron microscopy, Energy Disperse Spectroscopy and X-ray photoelectron spectroscopy results confirm that Al and B successfully doped into the interior of the bulk Li1.2Ni0.2MnO2 particles, and the High-resolution transmission electron microscopy and X-ray diffraction Rietveld refinement results reveal that the c-axis distance of LMR-AB increases. The Al-B co-doped sample shows greatly enhanced electrochemical performance. Specifically, it exhibits of a discharge capacity of 120 mAh g(-1) 5 C and a capacity retention of 89.12% after 100 cycles at 1 C. The voltage decay is also greatly alleviated. The enhanced electrochemical performance of LMR-AB is due to the synergistic effects bought by the Al-B dual doping, where increase of c-axis distance decreases Li+ intercalation/deintercalation barrier. B3+ doping into the tetrahedral site block the migration of TM ions and Al3+ act as pillars in the octahedral site, stabilizing the structure and suppressing the phase transition during cycling.
引用
收藏
页码:4184 / 4192
页数:9
相关论文
共 42 条
[1]  
[Anonymous], ADV ENERGY MAT
[2]   Improving high-capacity Li1.2Ni0.15Mn0.55Co0.1O2-based lithium-ion cells by modifiying the positive electrode with alumina [J].
Bettge, Martin ;
Li, Yan ;
Sankaran, Bharat ;
Rago, Nancy Dietz ;
Spila, Timothy ;
Haasch, Richard T. ;
Petrov, Ivan ;
Abraham, Daniel P. .
JOURNAL OF POWER SOURCES, 2013, 233 :346-357
[3]   A strategy of constructing spherical core-shell structure of Li1.2Ni0.2Mn0.O2@Li1.2Ni0.4Mn0.4O2 cathode material for high-performance lithium-ion batteries [J].
Chong, Shaokun ;
Wu, Yifang ;
Chen, Yuanzhen ;
Shu, Chengyong ;
Liu, Yongning .
JOURNAL OF POWER SOURCES, 2017, 356 :153-162
[4]  
Ghorbanzadeh M., 2017, J SOLID STATE ELECTR, V22, P1
[5]   Performance Enhancement of 4.8 V Li1.2Mn0.525Ni0.175Co0.1O2 Battery Cathode Using Fluorinated Linear Carbonate as a High-Voltage Additive [J].
Hieu Quang Pham ;
Nam, Kyoung-Mo ;
Hwang, Eui-Hyung ;
Kwon, Young-Gil ;
Jung, Hyun Min ;
Song, Seung-Wan .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2014, 161 (14) :A2002-A2011
[6]   Effect of Cr doping on the structural, electrochemical properties of Li[Li0.2Ni0.2-x/2Mn0.6-x/2Crx]O2 (x=0, 0.02, 0.04, 0.06, 0.08) as cathode materials for lithium secondary batteries [J].
Jiao, Li Fang ;
Zhang, Ming ;
Yuan, Hua Tang ;
Zhao, Ming ;
Guo, Han ;
Wang, Wei ;
Di Zhou, Xing ;
Wang, Yong Mei .
JOURNAL OF POWER SOURCES, 2007, 167 (01) :178-184
[7]   Anomalous capacity and cycling stability of xLi2MnO3•(1-x)LiMO2 electrodes (M = Mn, Ni, Co) in lithium batteries at 50°C [J].
Johnson, Christopher S. ;
Li, Naichao ;
Lefief, Christina ;
Thackeray, Michael M. .
ELECTROCHEMISTRY COMMUNICATIONS, 2007, 9 (04) :787-795
[8]   The significance of the Li2MnO3 component in 'composite' xLi2MnO3 • (1-x)LiMn0.5Ni0.5O2 electrodes [J].
Johnson, CS ;
Kim, JS ;
Lefief, C ;
Li, N ;
Vaughey, JT ;
Thackeray, MM .
ELECTROCHEMISTRY COMMUNICATIONS, 2004, 6 (10) :1085-1091
[9]   Effect of the sintering agent, B2O3, on Li[NixCo1-2xMnx]O2 materials -: Density, structure, and electrochemical properties [J].
Jouanneau, S ;
Bahmet, W ;
Eberman, KW ;
Krause, LJ ;
Dahn, JR .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2004, 151 (11) :A1789-A1796
[10]   Effects of Atomic Layer Deposition of Al2O3 on the Li[Li0.20Mn0.54Ni0.13Co0.13]O2 Cathode for Lithium-Ion Batteries [J].
Jung, Yoon Seok ;
Cavanagh, Andrew S. ;
Yan, Yanfa ;
George, Steven M. ;
Manthiram, Arumugam .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2011, 158 (12) :A1298-A1302