| Temperature-Dependent Dynamic Properties of LixMn2O4 in Monte Carlo Simulations |
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| 作者姓名： | 欧阳楚英 施思齐 王兆翔 李泓 黄学杰 陈立泉 |
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| 作者单位： | [1]LaboratoryforSolidStateIonics,InstituteofPhysics,ChineseAcademyofSciences,POBox603,Beijing100080 [2]LaboratoryforSolidStateIonics,InstituteofPhysics,ChineseAcademyofSciences,POBox603,Beijing100080／／DepartmentofPhysics,JiangxiNormalUniversity,Nanchang330027 |
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| 摘 要： | Monte Carlo (MC) simulations are used to simulate the voltage profile and the ionic conductivity s of Li ions in LixMn2O4 and its dependence on the lithium concentration x. The open circuit potential shows clearly the two plateaus in the charge/discharge curve, which agrees well with the experimental results. The two plateaus become more and more steep when the temperature is increased. The simulated ionic conductivity shows an M-shaped curve in the plot of ionic conductivity cr versus x when the simulation temperature is low. Interestingly,the minimum valley, which lies at the middle single-phase area near x=0.5, disappears gradually when the temperature increases to 453K.
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| 关 键 词： | 蒙特卡洛仿真 温度相关性 力学性质 LixMn2O4 离子电导性 锂电池 |
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