A novel electrodes collocation for asymmetric electrochemical capacitor
by Jiping Zhu; Guang Yang; Quanbao Xu; Junjie Zhao
International Journal of Nanomanufacturing (IJNM), Vol. 10, No. 1/2, 2014

Abstract: The Li₄Ti₅O₁₂ and LiNi_1/3Co_1/3Mn_1/3O₂ electrode materials are prepared by solid state reaction by one step. The structures and morphologies of the LiNi_1/3Co_1/3Mn_1/3O₂ and Li₄Ti₅O₁₂ electrode materials are characterised by X-ray diffractometry (XRD) and scanning electron microscopy (SEM). The electrochemical properties of asymmetric electrochemical capacitor are characterised by galvanostatic charge-discharge curves. Comparing the different compounding situations, the results show us the sample that has optimum content, containing active carbon (AC) mixed with 10% LiNi_1/3Co_1/3Mn_1/3O₂ and Li₄Ti₅O₁₂, achieves a high specific capacitance and a good cyclic stability, and the specific capacitance is 178.5F·g⁻¹ at 80 mA·g⁻¹ in the voltage of 1 to 2.5 V, which has the best properties in our experiment.

Online publication date: Sat, 17-May-2014

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