Facile Synthesis of Platelike Hierarchical Li1.2Mn0.54Ni0.13Co0.13O2with Exposed {010} Planes for High-Rate and Long Cycling-Stable Lithium Ion Batteries.
Lithium-rich layered oxides are promising cathode candidates for the production of high-energy and high-power electronic devices with high specific capacity and high discharge voltage. However, unstable cycling performance, especially at high charge-recharge rate, is the most challenge issue which needs to be solved to foster the diffusion of these materials. In this paper, hierarchical platelike Li1.2Mn0.54Ni0.13Co0.13O2cathode materials were synthesized by a facile solvothermal method followed by calcination. Calcination time was found to be a key parameter to obtain pure layered oxide phase and tailor its hierarchical morphology. The Li-rich material consists of primary nanoparticles with exposed {010} planes assembled to form platelike layers which exhibit low resistance to Li+diffusion. In detail, the product by calcination at 900 °C for 12 h exhibits specific capacity of 228, 218, and 204 mA h g-1at 200, 400, and 1000 mA g-1, respectively, whereas after 100 cycles at 1000 mA g-1rate of charge and recharge the specific capacity was retained by about 91%.
Shenzhen Key Laboratory of Advanced Materials, Department of Materials Science and Engineering, Harbin Institute of Technology Shenzhen Graduate School , Shenzhen 518055, China.
Jiong
J
Zeng
Shenzhen Key Laboratory of Advanced Materials, Department of Materials Science and Engineering, Harbin Institute of Technology Shenzhen Graduate School , Shenzhen 518055, China.
Yanhui
Y
Cui
Department of Mechanical Engineering, College of Engineering and Applied Science, University of Wisconsin Milwaukee , 3200 N. Cramer Street, Milwaukee, Wisconsin 53211, United States.|Dongguan Mcnair Technology Co., Ltd. , Dongguan 523800, China.
Deyang
D
Qu
Shenzhen Key Laboratory of Advanced Materials, Department of Materials Science and Engineering, Harbin Institute of Technology Shenzhen Graduate School , Shenzhen 518055, China.
Qian
Q
Zhang
Shenzhen Key Laboratory of Advanced Materials, Department of Materials Science and Engineering, Harbin Institute of Technology Shenzhen Graduate School , Shenzhen 518055, China.
Junwei
J
Wu
School of Materials Science and Engineering, Wuhan University of Technology , 122-loushi Road, Wuhan 430070, China.
Xiaomeng
X
Zhu
Department of Civil and Environmental Engineering, Harbin Institute of Technology Shenzhen Graduate School , Shenzhen 518055, China.
Zuohua
Z
Li
Dongguan Mcnair Technology Co., Ltd. , Dongguan 523800, China.
Xinhe
X
Zhang
Li ion battery; Li-rich cathode; exposed {010} plans; hierarchical morphology; solvothermal