Tool for Tortuosity Estimation in Lithium Ion Battery Porous Electrodes

被引：143
作者：
Ebner, Martin [1 ]
Wood, Vanessa [1 ]
机构：
[1] Swiss Fed Inst Technol, Lab Nanoelect, Dept Informat Technol & Elect Engn, CH-8092 Zurich, Switzerland
来源：
JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2015年 / 162卷 / 02期
关键词：
INHOMOGENEITIES;
D O I：
10.1149/2.0111502jes
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
We present an open source software application "BruggemanEstimator" that allows a user to estimate the tortuosity of a porouselectrode. BruggemanEstimator determines the Bruggeman exponent based on the Differential Effective Medium approximation and as input requires only two microscope images: one of the top and one of a cross section through an electrode. These images, which can be easily acquired with a scanning electron or optical microscope, are used to extract a sampling of active particle shapes as well as the orientation of the particles within the electrode. We validate the accuracy of BruggemanEstimator by comparing the estimated Bruggeman exponents to values calculated by performing numerical diffusion simulations on three-dimensional microstructures obtained from tomographic techniques. (C) The Author(s) 2014. Published by ECS.
引用
收藏
页码：A3064 / A3070
页数：7
相关论文
共 22 条
  • [11] Effects of Inhomogeneities-Nanoscale to Mesoscale-on the Durability of Li-Ion Batteries
    Harris, Stephen J.
    Lu, Peng
    [J]. JOURNAL OF PHYSICAL CHEMISTRY C, 2013, 117 (13) : 6481 - 6492
  • [12] FIB/SEM-based calculation of tortuosity in a porous LiCoO2 cathode for a Li-ion battery
    Hutzenlaub, T.
    Asthana, A.
    Becker, J.
    Wheeler, D. R.
    Zengerle, R.
    Thiele, S.
    [J]. ELECTROCHEMISTRY COMMUNICATIONS, 2013, 27 : 77 - 80
  • [13] Local Tortuosity Inhomogeneities in a Lithium Battery Composite Electrode
    Kehrwald, Dirk
    Shearing, Paul R.
    Brandon, Nigel P.
    Sinha, Puneet K.
    Harris, Stephen J.
    [J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2011, 158 (12) : A1393 - A1399
  • [14] Newman J., 2004, Electrochem. Syst, P672
  • [15] Schindelin J, 2012, NAT METHODS, V9, P676, DOI [10.1038/NMETH.2019, 10.1038/nmeth.2019]
  • [16] STRATTON JA, 1941, ELECTROMAGNETIC THEO, P211
  • [17] A pyramid approach to subpixel registration based on intensity
    Thevenaz, P
    Ruttimann, UE
    Unser, M
    [J]. IEEE TRANSACTIONS ON IMAGE PROCESSING, 1998, 7 (01) : 27 - 41
  • [18] Quantifying tortuosity in porous Li-ion battery materials
    Thorat, Indrajeet V.
    Stephenson, David E.
    Zacharias, Nathan A.
    Zaghib, Karim
    Harb, John N.
    Wheeler, Dean R.
    [J]. JOURNAL OF POWER SOURCES, 2009, 188 (02) : 592 - 600
  • [19] Torquato S., 2002, RANDOM HETEROGENEOUS, P301
  • [20] An Analytical Method to Determine Tortuosity in Rechargeable Battery Electrodes
    Vijayaraghavan, Bharath
    Ely, David R.
    Chiang, Yet-Ming
    Garcia-Garcia, Ramiro
    Garcia, R. Edwin
    [J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2012, 159 (05) : A548 - A552
123