Operating Voltage of Li-Ion Batteries on the Basis of Phase Diagram and Thermodynamics
Operating Voltage of Li-Ion Batteries on the Basis of Phase Diagram and Thermodynamics
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基于相图和热力学的锂离子电池工作电压
DOI：
10.1007/978-3-662-58675-4_13
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
S.-M. Liang
中科院分区：
文献类型：
--
作者：
W.Zhang;S.-M. Liang
从相图和热力学的角度解释了锂离子电池的行为。介绍了相图计算(CALPHAD)技术，并将其应用于获得可靠的相应物质体系的热力学模型。选择了硅和锡以及混合导体硅锡合金作为负极材料。用LiMn2O4尖晶石阴极解释了阴极侧的行为。最后，用建立的热力学模型计算了一个由硅锡混合导体正极和LiMn2O4尖晶石正极组成的假想电池系列的工作电压。
The behavior of Li-ion batteries is explained on the basis of phase diagram and thermodynamics. Calculation of phase diagram (Calphad) technique is introduced and applied for obtaining reliable thermodynamic models of corresponding material systems. Si and Sn as well as mixed conductor Si-Sn alloys are selected as example anode materials. LiMn2O4spinel cathode is used to explain behavior of the cathode side. Finally, operating voltages of an imaginary battery series composed of Si-Sn mixed conductor anodes and LiMn2O4spinel cathodes are shown using calculated results obtained with established thermodynamic models.