GIEC OpenIR  > 中国科学院广州能源研究所
Simulated annealing reconstruction of LiCoO2 cathode microstructure and prediction of its effective transport properties
Wu Wei1,2; Jiang Fang-Ming1; Zeng Jian-Bang1
2014-02-01
Source PublicationACTA PHYSICA SINICA
Volume63Issue:4
AbstractReconstruction and characterization of the porous composite electrode via experimental and numerical approaches is one of the most important ingredients of mesoscopic modeling. It is also the basis and prerequisite for bottom-to-up design and optimization of electrode microstructure. In the present work, a simulated annealing approach is employed to reconstruct the LiCoO2 cathode of a commercial Li-ion battery. Important statistical characteristic parameters of the real LiCoO2 cathode, such as porosity or component volume fraction, the real size distribution curve of LiCoO2 particles, which are taken from experimental data or extracted from the source materials used to fabricate the cathode, are used to regulate the reconstruction process. The reconstructed electrode evidently distinguishes the three individual phases: LiCoO2 as active material, pores or electrolyte, and additives. An extensive characterization is subsequently performed, which calculates some important structural and transport properties, including the geometrical connectivity of an individual phase, the specific surface area, etc. Particularly, a self-developed D3Q15 LB (lattice Boltzmann) model is utilized to calculate the effective thermal (or electric) conductivity and the effective species diffusivity in electrolyte (or solid) phase, and the tortuosity of an individual phase. The LB model predictions indicate that the effective transport coefficients are closely related to the micro-morphology in electrodes and the tortuosity values assessed by LBM are more reliable than those predicted by random walk simulation or the Bruggeman equation.
SubtypeArticle
KeywordEffective Physical Parameters Mesoscopic Modeling To Lithium-ion Battery Simulated Annealing Approach Lattice Boltzmann Method
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.7498/aps.63.048202
WOS Subject ExtendedPhysics
WOS KeywordEFFECTIVE THERMAL-CONDUCTIVITY ; POROUS-MEDIA ; BOUNDARY-CONDITIONS ; BATTERY ELECTRODES ; ALGORITHM ; CELLS ; MODEL
Indexed BySCI
Language英语
WOS SubjectPhysics, Multidisciplinary
WOS IDWOS:000332771000049
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/10639
Collection中国科学院广州能源研究所
Affiliation1.Chinese Acad Sci, Key Lab Renewable Energy Chinese Acad Sci, Lab Adv Energy Syst, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Wu Wei,Jiang Fang-Ming,Zeng Jian-Bang. Simulated annealing reconstruction of LiCoO2 cathode microstructure and prediction of its effective transport properties[J]. ACTA PHYSICA SINICA,2014,63(4).
APA Wu Wei,Jiang Fang-Ming,&Zeng Jian-Bang.(2014).Simulated annealing reconstruction of LiCoO2 cathode microstructure and prediction of its effective transport properties.ACTA PHYSICA SINICA,63(4).
MLA Wu Wei,et al."Simulated annealing reconstruction of LiCoO2 cathode microstructure and prediction of its effective transport properties".ACTA PHYSICA SINICA 63.4(2014).
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Wu Wei]'s Articles
[Jiang Fang-Ming]'s Articles
[Zeng Jian-Bang]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wu Wei]'s Articles
[Jiang Fang-Ming]'s Articles
[Zeng Jian-Bang]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wu Wei]'s Articles
[Jiang Fang-Ming]'s Articles
[Zeng Jian-Bang]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.