LiMn2O4 microspheres as high-performance cathode materials for Li-ion batteries

2017 3rd International Conference on Environmental Science and Material Application

生态环境科学;材料科学

Zheng, Hao^1 ; Wang, Ting^1 ; Zhao, Rongfei^1 ; Chen, Jinsong^1 ; Li, Lin^1

Key Lab. of Funct. Mat. and Chemistry for Performance and Resource of Guizhou Education Department, Anshun University, Anshun

561000, China^1

关键词: Cath-ode materials;    Cycling stability;    Galvanostatic charge/discharge;    Hollow microsphere;    Initial discharge capacities;    Profile measurement;    Solid microspheres;    Spinel LiMn2O4;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/108/2/022011/pdf
DOI  :  10.1088/1755-1315/108/2/022011

来源: IOP

【 摘 要 】

Spinel LiMn2O4microspheres were prepared by lithiating MnCO3solid microspheres and MnO2hollow microspheres, respectively. Li2CO3was used as lithium source. The spinel LiMn2O4microspheres samples annealed at different temperatures were characterized by XRD, SEM, and galvanostatic charge/discharge profile measurement. The LiMn2O4microspheres show an initial discharge capacity reaches 128 mAh/g at 1 C, more than 120 mAh/g of capacity is retained after 80 cycles and the best cycling stability. These results indicate that the LiMn2O4microspheres could be a promising cathode material for lithium ion batteries.