Atomistic Insights into the Effects of Doping and Vacancy Clustering on Li-Ion Conduction in the Li3OCl Antiperovskite Solid Electrolyte

作者: Matt J Clarke , James A Dawson , Timothy J Mays , M Saiful Islam , None

DOI: 10.1021/ACSAEM.1C00656

关键词: IonVacancy defectChemical physicsAntiperovskiteElectrolyteLithium batteryThermal conductionDopingCluster analysisMaterials science

摘要: Solid-state batteries are currently attracting increased attention because of their potential for significant improvements in energy density and safety as compared to liquid electrolyte-based batteries. Lithium-rich antiperovskites, such as Li3OCl, are of particular interest, but the effects of doping on lithium mobility are not fully understood at the atomic level. Here, we investigate the impact of divalent cation (Mg2+, Ca2+, Sr2+, and Ba2+) and F–doping on the ion conduction properties of Li3OCl, using both defect simulation and molecular dynamics …

参考文章(68)
Yan Wang, William Davidson Richards, Shyue Ping Ong, Lincoln J Miara, Jae Chul Kim, Yifei Mo, Gerbrand Ceder, None, Design principles for solid-state lithium superionic conductors Nature Materials. ,vol. 14, pp. 1026- 1031 ,(2015) , 10.1038/NMAT4369
Ziheng Lu, Chi Chen, Zarah Medina Baiyee, Xin Chen, Chunming Niu, Francesco Ciucci, Defect chemistry and lithium transport in Li3OCl anti-perovskite superionic conductors. Physical Chemistry Chemical Physics. ,vol. 17, pp. 32547- 32555 ,(2015) , 10.1039/C5CP05722A
M. Saiful Islam, R. Andrew Davies, Atomistic study of dopant site-selectivity and defect association in the lanthanum gallate perovskite Journal of Materials Chemistry. ,vol. 14, pp. 86- 93 ,(2004) , 10.1039/B308519H
D. J. Evans, B. L. Holian, The Nose–Hoover thermostat Journal of Chemical Physics. ,vol. 83, pp. 4069- 4074 ,(1985) , 10.1063/1.449071
Steve Plimpton, Fast parallel algorithms for short-range molecular dynamics Journal of Computational Physics. ,vol. 117, pp. 1- 19 ,(1995) , 10.1006/JCPH.1995.1039
Juchuan Li, Cheng Ma, Miaofang Chi, Chengdu Liang, Nancy J. Dudney, Lithium‐Ion Batteries: Solid Electrolyte: the Key for High‐Voltage Lithium Batteries (Adv. Energy Mater. 4/2015) Advanced Energy Materials. ,vol. 5, ,(2015) , 10.1002/AENM.201570018
M. H. Braga, J. A. Ferreira, V. Stockhausen, J. E. Oliveira, A. El-Azab, Novel Li3ClO based glasses with superionic properties for lithium batteries Journal of Materials Chemistry. ,vol. 2, pp. 5470- 5480 ,(2014) , 10.1039/C3TA15087A
B. G. Dick, A. W. Overhauser, Theory of the Dielectric Constants of Alkali Halide Crystals Physical Review. ,vol. 112, pp. 90- 103 ,(1958) , 10.1103/PHYSREV.112.90
Alexander Stukowski, Visualization and analysis of atomistic simulation data with OVITO–the Open Visualization Tool Modelling and Simulation in Materials Science and Engineering. ,vol. 18, pp. 015012- ,(2010) , 10.1088/0965-0393/18/1/015012
Julian D. Gale, Andrew L. Rohl, The general utility lattice program (GULP) Molecular Simulation. ,vol. 29, pp. 291- 341 ,(2003) , 10.1080/0892702031000104887