Electrochemical properties of LiNi1/3Col/3Mnl/3O2/Cu(Ac)2 composite cathode materials for Li-ion batteries
by Jiping Zhu; Quanbao Xu; Guang Yang; Junjie Zhao
International Journal of Nanomanufacturing (IJNM), Vol. 9, No. 3/4, 2013

Abstract: The layered electrode materials LiNi1/3Col/3Mnl/3O2/Cu(Ac)2 were synthesised by a solid state reaction method. Cupric acetate (Cu(Ac)2) was used as raw material to mix into LiNi1/3Co1/3Mn1/3O2 material, and resolved into CuO at low temperatures. The structures, morphologies and electrochemical properties of the complex materials were characterised by X-ray diffractometry (XRD), scanning electron microscopy (SEM), and electrochemistry test. For the rate performance test, the cells were charged and discharged at 0.2~2 C in the voltage of 2.5~4.3 V and 2.5~4.6 V. The results showed that the electrochemical properties and cycle performance of Cu(Ac)2-mixed LiNi1/3Co1/3Mn1/3O2 materials were improved. The optimal mixing content of Cu(Ac)2 was 8 wt% in LiNi1/3Co1/3Mn1/3O2 material.

Online publication date: Mon, 31-Mar-2014

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