The Properties of Layered Cathode Material LiNi1/3Co1/3Mn1/3O2 with Fe-doping

International Conference on Manufacturing Technology, Materials and Chemical Engineering

机械制造;材料科学;化学工业

Li, Mingli^1,2 ; Yu, Qiong^1,2 ; Zhao, Jie^1,2 ; Ma, Lan^1,2 ; Xu, Wei^1,2 ; Qin, Guanghei^1,2

Ningbo Branch of China Academy of Ordnance Science, Ningbo

315103, China^1

Ningbo United New Material Research Institute, Ningbo

315040, China^2

关键词: Average particle size;    Charge and discharge capacities;    Electrochemical experiments;    Fe doped materials;    Layered cathode;    Layered cathode materials;    Layered Structures;    Random stacking;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/392/3/032010/pdf
DOI  :  10.1088/1757-899X/392/3/032010

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

A layered cathode-active material LiNi1/3Co1/3Mn1/3O2 was synthesized by sintering the admixture of oxalate co-precipitation powder of Cobalt, Nickel, and Manganese and Li2CO3. The influence of Fe-doped on the structural and electrochemical properties of LiNi1/3Co1/3Mn1/3O2 was characterized by XRD, SEM, BET and electrochemical experiments. The results reveal that LiNi1/3Co1/3Mn1/3O2 with small amounts (≤6%) of Fe-doping keeps the α-NaFeO2 layered structure. As the doping content increases, the lattice parameters increase and the random stacking happens. The average particle size is about 0.3-0.4 μm and the specific surface area decreases. The Fe-doping improved charge and discharge capacity. The 2% Fe-doped materials deliver an initial charge and discharge capacity of 243.2 and 167.4mAh·g-1.