Research article Topical Sections

Electrode–electrolyte interface stability in solid state electrolyte systems: influence of coating thickness under varying residual stresses

  • Received: 30 May 2017 Accepted: 24 July 2017 Published: 01 August 2017
  • We introduce a model of electrode–electrolyte interfacial growth which focuses on the effect of thin coating layers on the interfacial stability in prestressed systems. We take into account transport resulting from deposition from the electrolyte, from capillarity driven surface diffusion, and from changes of the chemical potential due to the elastic energy associated with the interface profile. As model system, we use metallic lithium as electrode, LLZO as electrolyte and Al2O3 as a thin film interlayer, which is a highly relevant interfacial system in state of the art all-solid-electrolyte batteries. We consider the stability of the electrode-coating-electrolyte interface depending on the thickness of the thin film interlayer and the magnitude of the elastic prestresses. Our central approach is a linear stability analysis based on the mass conservation at the planar interface, employing approximations which are appropriate for solid state electrolytes (SSEs) like LLZ, a thin Li metal electrode and a thin coating layer with a thickness in the range of nanometres.

    Citation: Claas Hüter, Shuo Fu, Martin Finsterbusch, Egbert Figgemeier, Luke Wells, Robert Spatschek. Electrode–electrolyte interface stability in solid state electrolyte systems: influence of coating thickness under varying residual stresses[J]. AIMS Materials Science, 2017, 4(4): 867-877. doi: 10.3934/matersci.2017.4.867

    Related Papers:

  • We introduce a model of electrode–electrolyte interfacial growth which focuses on the effect of thin coating layers on the interfacial stability in prestressed systems. We take into account transport resulting from deposition from the electrolyte, from capillarity driven surface diffusion, and from changes of the chemical potential due to the elastic energy associated with the interface profile. As model system, we use metallic lithium as electrode, LLZO as electrolyte and Al2O3 as a thin film interlayer, which is a highly relevant interfacial system in state of the art all-solid-electrolyte batteries. We consider the stability of the electrode-coating-electrolyte interface depending on the thickness of the thin film interlayer and the magnitude of the elastic prestresses. Our central approach is a linear stability analysis based on the mass conservation at the planar interface, employing approximations which are appropriate for solid state electrolytes (SSEs) like LLZ, a thin Li metal electrode and a thin coating layer with a thickness in the range of nanometres.


    加载中
    [1] Bhattacharayya R, Key B, Chen H, et al. (2010) In situ observation NMR observation of the formation of metallic lithium microstructures in lithium batteries. Nat Mater 9: 504. doi: 10.1038/nmat2764
    [2] Chandrashekar S, Trease NM, Chang HJ, et al. (2012) 7Li MRI of Li batteries reveals location of microstructural lithium. Nat Mater 11: 311. doi: 10.1038/nmat3246
    [3] Harry KJ, Hallinan DT, Parkinson DY, et al. (2014) Detection of the subsurface structures underneath dendrites formed on cycled lithium metal electrodes. Nat Mater 13: 69.
    [4] von Sacken U, Nodwell E, Sundher A, et al. (1995) Comparative thermal stability of carbon intercalation anodes and lithium metal anodes for rechargable lithium batteries. J Power Sources 54: 240. doi: 10.1016/0378-7753(94)02076-F
    [5] Tobishima SI, Yamaki JI (1999) A consideration of lithium cell safety. J Power Sources 81: 882.
    [6] Han X, Gong Y, Fu K, et al. (2017) Negating interfacial impedance in garnet-based solid-state Li metal batteries. Nat Mater 16: 572.
    [7] Natsiavas PP, Weinberg K, Rosato D, et al. (2016) Effect of prestress on the stability of electrode–electrolyte interfaces during charging in lithium batteries. J Mech Phys Solids 95: 92–111. doi: 10.1016/j.jmps.2016.05.007
    [8] Ely DR, Garcia RE (2013) Heterogeneous nucleation and growth of lithium electrodeposits on negative electrodes. J Electrochem Soc 160: A662–A668. doi: 10.1149/1.057304jes
    [9] Nishida T, Nishikawa K, Rosso M, et al. (2013) Optical observation of Li dendrite growth in ionic liquid. Electrochim Acta 100: 333–341. doi: 10.1016/j.electacta.2012.12.131
    [10] Mikhaylik YV, Kovalev I, Schock R, et al. (2010) High energy rechargable Li-S cells for EV application: status, remaining problems and solutions. ECS Trans 25: 23–34.
    [11] Ortiz M, Repetto EA, Si H (1999) A continuum model of kinetic roughening and coarsening in thin films. J Mech Phys Solids 47: 697. doi: 10.1016/S0022-5096(98)00102-1
    [12] Ho PS, Kwok T (1989) Electromigration in metals. Rep Prog Phys 52: 301. doi: 10.1088/0034-4885/52/3/002
    [13] Newman J, Thomas-Alyea KE (2012) Electrochemical Systems, Hoboken, New Jersey, USA: John Wiley and Sons.
    [14] Mullins WW (1957) Theory of thermal grooving. J Appl Phys 28: 333–339. doi: 10.1063/1.1722742
    [15] Herring C (1951) Surface tension as a motivation for sintering, The Physics of powder metallurgy, New York: McGraw-Hill.
    [16] Das Sarma S, Ghaisas SV (1992) Solid-on-solid rules and models for nonequilibrium growth in 2 + 1 dimensions. Phys Rev Lett 69: 3762. doi: 10.1103/PhysRevLett.69.3762
    [17] Martin L, Vallverdu G, Martinez H, et al. (2012) First principles calculations of solid–solid interfaces: application to conversion materials for lithium-ion batteries. J Mater Chem 22: 22063. doi: 10.1039/c2jm35078e
    [18] Weir G (2008) Implications from the ratio of surface tension to bulk modulus and nearest neighbour distance, for planar surfaces. Proc R Soc A 464: 2281. doi: 10.1098/rspa.2007.0360
    [19] Srolovitz D (1989) On the stability of surfaces of stressed solids. Acta Metall 37: 621. doi: 10.1016/0001-6160(89)90246-0
    [20] Gao H (1991) Stress Concentration at slightly undulating interfaces. J Mech Phys Solids 39: 443. doi: 10.1016/0022-5096(91)90035-M
    [21] Yu S, Schmidt RD, Garcia-Mendez R, et al. (2016) Elastic Properties of the Solid Electrolyte Li7La3Zr2O12(LLZO). Chem Mater 28: 197. doi: 10.1021/acs.chemmater.5b03854
    [22] Murphy M (1997) Octave: A Free, High-Level Language for Mathematics. Linux J 39: 1225.
  • Reader Comments
  • © 2017 the Author(s), licensee AIMS Press. This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0)
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Metrics

Article views(4859) PDF downloads(1442) Cited by(7)

Article outline

Figures and Tables

Figures(3)

/

DownLoad:  Full-Size Img  PowerPoint
Return
Return

Catalog