The Electrochemical Properties of Li2NixMn1-xSiO4 Cathode Material for Lithium Batteries

Atef Y. Shenouda; N. Munichandraih

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The Electrochemical Properties of Li₂Ni_xMn_1-xSiO₄ Cathode Material for Lithium Batteries

机译：Li _{2 Ni _{x Mn _{1-x SiO _{4 锂电池正极材料的电化学性能}}}}

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Li2NixMn1-xSiO4 (x= 0, 0.2, 0.4, 0.6, 0.8 and 1) samples were prepared by solid state process. Thestructure of prepared samples of Li2NixMn1-xSiO4 is characterized by XRD. The crystal structure of thesamples is orthorhombic having space group Pmn21. SEM investigations are carried out explaining themorphology of powders of these samples. Furthermore, electrochemical impedance spectrameasurements are applied. The highest conductivity is achieved with the cell prepared fromLi2Ni0.2Mn0.8SiO4 compound. Cyclic voltammetric measurements are carried out for Li2NixMn1-xSiO4+ -1 material between 0.1 and 4.5 V vs. Li with scan rate 0.1 mVs . It is observed that Li/-1 Li2Ni0.2Mn0.8SiO4 cell has initial capacity of 160 mAhg . The cycle life performance is carried out for-1 Li2NixMn1-xSiO4 cells. The prepared cells gave average capacities between 100 and 150 mAhg .

机译：通过固态工艺制备了Li2NixMn1-xSiO4（x = 0、0.2、0.4、0.6、0.8和1）样品。 XRD表征了制备的Li2NixMn1-xSiO4样品的结构。样品的晶体结构是正交晶体，具有空间群Pmn21。进行SEM研究以解释这些样品的粉末形态。此外，应用电化学阻抗谱测量。由Li2Ni0.2Mn0.8SiO4化合物制备的电池可实现最高的电导率。对于Li2NixMn1-xSiO4 + -1材料，对Li进行了循环伏安测量，扫描速率为0.1 mVs，相对于Li。观察到Li / -1 Li2Ni0.2Mn0.8SiO4电池的初始容量为160mAhg。对1个Li2NixMn1-xSiO4电池进行循环寿命性能测试。制备的电池的平均容量为100至150 mAhg。

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《International Journal of Electrochemical Science》 |2016年第10期|共9页
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Atef Y. Shenouda; N. Munichandraih;
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The Electrochemical Properties of Li2NixMn1-xSiO4 Cathode Material for Lithium Batteries

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The Electrochemical Properties of Li₂Ni_xMn_1-xSiO₄ Cathode Material for Lithium Batteries