Anode microstructures from high-energy and high-power lithium-ion cylindrical cells obtained by X-ray nano-tomography
Anode microstructures from high-energy and high-power lithium-ion cylindrical cells obtained by X-ray nano-tomography
复制标题
X射线纳米断层扫描获得的高能高功率锂离子圆柱电池阳极微结构
DOI:
10.1016/j.jpowsour.2014.07.070
复制
发表时间:
2014
影响因子:
9.2
通讯作者:
E. Ivers-Tiffée
中科院分区:
文献类型:
--
作者:
M. Ender;J. Joos;A. Weber;E. Ivers-Tiffée
Graphite negative electrodes from a high-power and a high-energy cylindrical lithium-ion cell are reconstructed using X-ray nano-tomography. Large volumes and high resolution are required for an in-depth comparison of the design aspects for high-power and high-energy anode. Hence, quite big volumes of 2.37·106μm3and 1.27·106μm3have to be analyzed to cover the entire thickness of both anode layers. High resolutions of 273 nm and 233 nm voxel size are chosen for assessing volume specific graphite surface area, among other parameters, precisely. A hysteresis segmentation method is adapted for segmentation, featuring a symmetrical growing of both graphite and pore phase. Surface areas are calculated using the marching cube algorithm, particle sizes are calculated based on the Euclidean distance transform (EDT) and tortuosity values are calculated by solving the transport equation using a finite volume scheme in MATLAB. Analysis of these parameters leads to the assumption, that the electrolyte transport is limited by the pore structure of the high-energy graphite anode.
登录
查看更多内容
影响因子:
6.6
作者:
Joos, Jochen;Ender, Moses;Ivers-Tiffee, Ellen
通讯作者:
Ivers-Tiffee, Ellen
影响因子:
3.9
作者:
M. Ender;J. Joos;T. Carraro;E. Ivers-Tiffée
通讯作者:
E. Ivers-Tiffée
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
Jochen Joos;T. Carraro;M. Ender;B. Rüger;A. Weber;E. Ivers
通讯作者:
E. Ivers
影响因子:
9.2
作者:
Wilson, James R.;Cronin, J. Scott;Harris, Stephen J.
通讯作者:
Harris, Stephen J.