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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
Source PublicationSOLID STATE IONICS
Volume260Pages:76-85
AbstractWe 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.
SubtypeArticle
KeywordLithium-ion Battery Effective Transport Coefficients Smoothed Particle Hydrodynamics Formation Factor Sphere-based Simulated Annealing Method
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1016/j.ssi.2014.03.016
WOS Subject ExtendedChemistry ; Physics
WOS KeywordEFFECTIVE THERMAL-CONDUCTIVITY ; POROUS-MEDIA ; CATALYST LAYER ; FUEL-CELLS ; RECONSTRUCTION ; CATHODE ; LICOO2 ; SPH ; SIMULATION ; MODEL
Indexed BySCI
Language英语
WOS SubjectChemistry, Physical ; Physics, Condensed Matter
WOS IDWOS:000336697700013
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/10783
Collection中国科学院广州能源研究所
AffiliationChinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Lab Adv Energy Syst, Guangzhou 510640, Guangdong, Peoples R China
Recommended Citation
GB/T 7714
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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