Research on Modification of Ni-rich Lithium Ion Battery by MgO

2019 2nd International Conference of Green Buildings and Environmental Management

生态环境科学

He, Rui^1^2 ; Zhang, Lihui^1^2 ; Li, Wen^1^2 ; Wei, Aijia^1^2 ; Liu, Zhenfa^1^2

Institute of Energy Resources, Hebei Academy of Science, Hebei Province Shijiazhuang

050081, China^1

Hebei Engineer Research Center for Water Saving in Industry, Hebei Province, Shijiazhuang

050081, China^2

关键词: Cath-ode materials;    Charge discharge tests;    Chemical performance;    Cycling performance;    Discharge capacities;    Electrochemical performance;    Initial discharge capacities;    Optimum properties;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/310/4/042009/pdf
DOI  :  10.1088/1755-1315/310/4/042009

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Rich Nickel transition metal oxides with layered structure are promising cathode materials for LIBs. However, their poor cycling performance limits the expansion of their applications. In my article MgO was used to modify the Ni-rich materials. The crystal structure of the Rich Nickel materials was studied by X-Ray Diffraction(XRD) and Scanning Electron Microscope(SEM). The electro-chemical performance was studied by charge-discharge test. Our results showed that, in the charge/discharge measurement, the electrochemical performance of MgO modified sample is better than unmodified sample. As well as when the MgO radio was 2%, the sample showed the optimum properties. The initial discharge capacity was 184 mAh/g and 155 mAh/g at 0.1C and at 1C, respectively. After 100cycles at 1C, the discharge capacity kept 90% at 1C.