Enhanced Electrochemical Performance of LiNi0.8Co0.1Mn0.1O2 Cathode Material for lithium ion batteries by WO3 surface coating

被引：21
作者：
Xiong, Cong [1 ]
Fu, Haikou [2 ]
Wu, Lijue [2 ]
Yuan, Gaoqing [1 ]
机构：
[1] South China Univ Technol, Sch Chem & Chem Engn, Key Lab Funct Mol Engn Guangdong Prov, Guangzhou 510640, Peoples R China
[2] Qingyuan Jiazhi New Mat Res Inst Co Ltd, Qingyuan 511517, Peoples R China
来源：
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2020年 / 15卷 / 09期
基金：
中国国家自然科学基金;
关键词：
Lithium-ion batteries; LiNi0.8Co0.1Mn0.1O2; WO3; coating; electrochemical performance; CYCLING PERFORMANCE; LAYER; LINI0.5MN0.3CO0.2O2; IMPROVEMENT; ELECTRODES; STABILITY; OXIDE;
D O I：
10.20964/2020.09.60
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
LiNi0.8Co0.1Mn0.1O2 cathode material was successfully modified by using a wet-chemical route to coat WO3. The microstructures, morphologies, crystal structures, elemental distributions and ionic valence of the prepared cathode materials were carefully analyzed by SEM, EDS, TEM, HRTEM, XRD and XPS. The results indicated that the surface of LiNi0.8Co0.1Mn0.1O2 was uniformly covered by WO3 particles, and a small amount of W6+ could enter to the lattice of LiNi0.8Co0.1Mn0.1O2. The WO3 coating could prohibit the corrosion of HF and some side reactions for the cathode material during long cycles, thus greatly improving the electrochemical performance and the structural stability of LiNi0.8Co0.1Mn0.1O2. Among the examined LiNi0.8Co0.1Mn0.1O2 cathode materials, 1.0 wt% WO3-coated LiNi0.8Co0.1Mn0.1O2 has the best initial discharge capacity (185.1 mAh g(-1)) and an excellent capacity retention (93.2%) after 100 cycles at 1 C.
引用
收藏
页码：8990 / 9002
页数：13
相关论文
共 41 条
[31]   Improving the electrochemical performance of Ni-rich cathode material LiNi0.815Co0.15Al0.035O2 by removing the lithium residues and forming Li3PO4 coating layer [J].
Tang, Zhong-Feng ;
Wu, Rong ;
Huang, Pei-Feng ;
Wang, Qing-Song ;
Chen, Chun-Hua .
JOURNAL OF ALLOYS AND COMPOUNDS, 2017, 693 :1157-1163
[32]   Effect of surface fluorine substitution on high voltage electrochemical performances of layered LiNi0.5Co0.2Mn0.3O2 cathode materials [J].
Wang, Ding ;
Wang, Zhixing ;
Li, Xinhai ;
Guo, Huajun ;
Xu, Yan ;
Fan, Yulei ;
Pan, Wei .
APPLIED SURFACE SCIENCE, 2016, 371 :172-179
[33]   High capacity double-layer surface modified Li[Li0.2Mn0.54Ni0.13Co0.13]O2 cathode with improved rate capability [J].
Wang, Q. Y. ;
Liu, J. ;
Murugan, A. Vadivel ;
Manthiram, A. .
JOURNAL OF MATERIALS CHEMISTRY, 2009, 19 (28) :4965-4972
[34]   Surface modification of LiNi0.8Co0.1Mn0.1O2 with conducting polypyrrole [J].
Xiong, Xunhui ;
Ding, Dong ;
Wang, Zhixing ;
Huang, Bin ;
Guo, Huajun ;
Li, Xinhai .
JOURNAL OF SOLID STATE ELECTROCHEMISTRY, 2014, 18 (09) :2619-2624
[35]   Enhanced electrochemical properties of lithium-reactive V2O5 coated on the LiNi0.8Co0.1Mn0.1O2 cathode material for lithium ion batteries at 60 °C [J].
Xiong, Xunhui ;
Wang, Zhixing ;
Guo, Huajun ;
Zhang, Qian ;
Li, Xinhai .
JOURNAL OF MATERIALS CHEMISTRY A, 2013, 1 (04) :1284-1288
[36]   Cathode materials for next generation lithium ion batteries [J].
Xu, Jiantie ;
Dou, Shixue ;
Liu, Huakun ;
Dai, Liming .
NANO ENERGY, 2013, 2 (04) :439-442
[37]   Structure Integrity Endowed by a Ti-Containing Surface Layer towards Ultrastable LiNi0.8Co0.15Al0.05O2 for All-Solid-State Lithium Batteries [J].
Yang, Jing ;
Huang, Bingxin ;
Yin, Jingyun ;
Yao, Xiayin ;
Peng, Gang ;
Zhou, Jing ;
Xu, Xiaoxiong .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2016, 163 (08) :A1530-A1534
[38]   Significant improvement of electrochemical properties of AlF3-coated LiNi0.5Co0.2Mn0.3O2 cathode materials [J].
Yang, Kai ;
Fan, Li-Zhen ;
Guo, Jia ;
Qu, Xuanhui .
ELECTROCHIMICA ACTA, 2012, 63 :363-368
[39]   Anodic deposition and capacitive property of nano-WO3•H2O/MnO2 composite as supercapacitor electrode material [J].
Yuan, Chuanjun ;
Lin, Haibo ;
Lu, Haiyan ;
Xing, Endong ;
Zhang, Yusi ;
Xie, Bingyao .
MATERIALS LETTERS, 2015, 148 :167-170
[40]   A low temperature fluorine substitution on the electrochemical performance of layered LiNi0.8Co0.1Mn0.1O2-zFz cathode materials [J].
Yue, Peng ;
Wang, Zhixing ;
Guo, Huajun ;
Xiong, Xunhui ;
Li, Xinhai .
ELECTROCHIMICA ACTA, 2013, 92 :1-8
12345