Lithium Metal Penetration Induced by Electrodeposition through Solid Electrolytes: Example in Single-Crystal Li6La3ZrTaO12 Garnet

被引:185
作者
Swamy, Tushar [1 ]
Park, Richard [2 ]
Sheldon, Brian W. [3 ]
Rettenwander, Daniel [4 ]
Porz, Lukas [5 ]
Berendts, Stefan [6 ]
Uecker, Reinhard [7 ]
Carter, W. Craig [2 ]
Chiang, Yet-Ming [2 ]
机构
[1] MIT, Dept Mech Engn, Cambridge, MA 02139 USA
[2] MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA
[3] Brown Univ, Sch Engn, Providence, RI 02912 USA
[4] Graz Univ Technol, Inst Chem & Technol Mat, A-8010 Graz, Austria
[5] Tech Univ Darmstadt, Inst Mat Sci, D-64287 Darmstadt, Germany
[6] Tech Univ Berlin, Dept Chem, Berlin, Germany
[7] Leibniz Inst Crystal Growth, D-12489 Berlin, Germany
基金
奥地利科学基金会;
关键词
INTERFACE STABILITY; FRACTURE-TOUGHNESS; BETA-ALUMINA; HIGH-ENERGY; LI; CHALLENGES; DEPOSITION; DEGRADATION; TEMPERATURE; PROPAGATION;
D O I
10.1149/2.1391814jes
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
Solid electrolytes potentially enable rechargeable batteries with lithium metal anodes possessing higher energy densities than today's lithium ion batteries. To do so the solid electrolyte must suppress instabilities that lead to poor coulombic efficiency and short circuits. In this work, lithium electrodeposition was performed on single-crystal Li6La3ZrTaO12 garnets to investigate factors governing lithium penetration through brittle electrolytes. In single crystals, grain boundaries are excluded as paths for lithium metal propagation. Vickers microindentation was used to introduce surface flaws of known size. However, operando optical microscopy revealed that lithium metal penetration propagates preferentially from a different, second class of flaws. At the perimeter of surface current collectors smaller in size than the lithium source electrode, an enhanced electrodeposition current density causes lithium filled cracks to initiate and grow to penetration, even when large Vickers defects are in proximity. Modeling the electric field distribution in the experimental cell revealed that a 5-fold enhancement in field occurs within 10 micrometers of the electrode edge and generates high local electrochemomechanical stress. This may determine the initiation sites for lithium propagation, overriding the presence of larger defects elsewhere. (C) The Author(s) 2018. Published by ECS.
引用
收藏
页码:A3648 / A3655
页数:8
相关论文
共 48 条
  • [1] Investigating the Dendritic Growth during Full Cell Cycling of Garnet Electrolyte in Direct Contact with Li Metal
    Aguesse, Frederic
    Manalastas, William
    Buannic, Lucienne
    Lopez del Amo, Juan Miguel
    Singh, Gurpreet
    Llordes, Anna
    Kilner, John
    [J]. ACS APPLIED MATERIALS & INTERFACES, 2017, 9 (04) : 3808 - 3816
  • [2] Status and challenges in enabling the lithium metal electrode for high-energy and low-cost rechargeable batteries
    Albertus, Paul
    Babinec, Susan
    Litzelman, Scott
    Newman, Aron
    [J]. NATURE ENERGY, 2018, 3 (01): : 16 - 21
  • [3] A CRITICAL-EVALUATION OF INDENTATION TECHNIQUES FOR MEASURING FRACTURE-TOUGHNESS .1. DIRECT CRACK MEASUREMENTS
    ANSTIS, GR
    CHANTIKUL, P
    LAWN, BR
    MARSHALL, DB
    [J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1981, 64 (09) : 533 - 538
  • [4] A short review of failure mechanisms of lithium metal and lithiated graphite anodes in liquid electrolyte solutions
    Aurbach, D
    Zinigrad, E
    Cohen, Y
    Teller, H
    [J]. SOLID STATE IONICS, 2002, 148 (3-4) : 405 - 416
  • [5] Brook R., 1991, CONCISE ENCY ADV CER
  • [6] Intergranular Li metal propagation through polycrystalline Li6.25Al0.25La3Zr2O12 ceramic electrolyte
    Cheng, Eric Jianfeng
    Sharafi, Asma
    Sakamoto, Jeff
    [J]. ELECTROCHIMICA ACTA, 2017, 223 : 85 - 91
  • [7] Elder R., 2016, OVERVIEW PROGR US AD
  • [8] Challenges in the development of advanced Li-ion batteries: a review
    Etacheri, Vinodkumar
    Marom, Rotem
    Elazari, Ran
    Salitra, Gregory
    Aurbach, Doron
    [J]. ENERGY & ENVIRONMENTAL SCIENCE, 2011, 4 (09) : 3243 - 3262
  • [9] Rapid electroplating of insulators
    Fleury, V
    Watters, WA
    Allam, L
    Devers, T
    [J]. NATURE, 2002, 416 (6882) : 716 - 719
  • [10] Griffith AA. VI, 1921, Philos. Trans. R. Soc. London, V221, P163, DOI 10.1098/rsta.1921.0006