Abstract
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. LiMn2O4 spinel 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 LiMn2O4 spinel cathodes are shown using calculated results obtained with established thermodynamic models.
Author Contribution: Dajian Li formulated structure of the manuscript and wrote Li-Sn, Li-Si-Sn, and combined battery part. Weibin Zhan and Song-Mao Liang wrote Li-Mn-O part and Li-Si part, respectively. The authors worked together for writing the introduction part as well as reviewing the total manuscript.
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Acknowledgments
Dajian Li appreciates financial support from the German Research Foundation DFG project (LI 2839/1-1). Weibin Zhang was supported by Qilu Young Scholar Program in Shandong University. Song-Mao Liang acknowledges DFG Priority Programme “WendeLiB SPP 1473” under grant no. Schm 588/37.
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Li, D., Zhang, W., Liang, SM. (2019). Operating Voltage of Li-Ion Batteries on the Basis of Phase Diagram and Thermodynamics. In: Zhen, Q., Bashir, S., Liu, J. (eds) Nanostructured Materials for Next-Generation Energy Storage and Conversion. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-58675-4_13
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DOI: https://doi.org/10.1007/978-3-662-58675-4_13
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