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Smoothed particle hydrodynamics prediction of effective transport coefficients of lithium-ion battery electrodes
Zeng, Jianbang; Wu, Wei; Jiang, Fangming
2014-07-01
发表期刊SOLID STATE IONICS
卷号260页码:76-85
摘要We develop a three-dimensional virtual physical property test platform based on the smoothed particle hydrodynamics (SPH) method for the prediction of the effective transport coefficients, including the effective thermal conductivity, effective electronic conductivity, and effective Li+ species diffusivity of LiCoO2 electrodes of various microstructures. The three-dimensional microstructure of the LiCoO2 electrode is reconstructed by a sphere-based simulated annealing method. SPH simulation results corroborate that the transport processes are strongly affected by the electrode microstructure. The calculated effective thermal conductivity by SPH model agrees well with the theoretical predictions by a semi-empirical effective medium model, while the effective medium model generally gives smaller effective electronic conductivity of the electrode than the SPH model. Comparing the SPH-predicted effective Li+ species diffusivity with the commonly-used Bruggeman approximation finds that the latter generally overestimates the effective Li+ species diffusivity of the electrode. Furthermore, we derive the formation factor of electrolyte phase in the reconstructed electrode. It is found that the formation factors calculated from SPH results are in good agreement with former experimental data. (C) 2014 Elsevier B.V. All rights reserved.
文章类型Article
关键词Lithium-ion Battery Effective Transport Coefficients Smoothed Particle Hydrodynamics Formation Factor Sphere-based Simulated Annealing Method
WOS标题词Science & Technology ; Physical Sciences
DOI10.1016/j.ssi.2014.03.016
研究领域[WOS]Chemistry ; Physics
关键词[WOS]EFFECTIVE THERMAL-CONDUCTIVITY ; POROUS-MEDIA ; CATALYST LAYER ; FUEL-CELLS ; RECONSTRUCTION ; CATHODE ; LICOO2 ; SPH ; SIMULATION ; MODEL
收录类别SCI
语种英语
WOS类目Chemistry, Physical ; Physics, Condensed Matter
WOS记录号WOS:000336697700013
引用统计
被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/10783
专题中国科学院广州能源研究所
作者单位Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Lab Adv Energy Syst, Guangzhou 510640, Guangdong, Peoples R China
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Zeng, Jianbang,Wu, Wei,Jiang, Fangming. Smoothed particle hydrodynamics prediction of effective transport coefficients of lithium-ion battery electrodes[J]. SOLID STATE IONICS,2014,260:76-85.
APA Zeng, Jianbang,Wu, Wei,&Jiang, Fangming.(2014).Smoothed particle hydrodynamics prediction of effective transport coefficients of lithium-ion battery electrodes.SOLID STATE IONICS,260,76-85.
MLA Zeng, Jianbang,et al."Smoothed particle hydrodynamics prediction of effective transport coefficients of lithium-ion battery electrodes".SOLID STATE IONICS 260(2014):76-85.
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