Simulated annealing reconstruction of LiCoO2 cathode microstructure and prediction of its effective transport properties
文献类型：期刊论文
| 作者 | Wu Wei1,2; Jiang Fang-Ming1; Zeng Jian-Bang1 |
| 刊名 | acta physica sinica
 |
| 出版日期 | 2014-02-01 |
| 卷号 | 63期号:4 |
| 关键词 | effective physical parameters mesoscopic modeling to lithium-ion battery simulated annealing approach lattice Boltzmann method |
| 英文摘要 | reconstruction 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. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | physics, multidisciplinary |
| 研究领域[WOS] | physics |
| 关键词[WOS] | effective thermal-conductivity ; porous-media ; boundary-conditions ; battery electrodes ; algorithm ; cells ; model |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000332771000049 |
| 源URL | [http://ir.giec.ac.cn/handle/344007/10639]  |
| 专题 | 中国科学院广州能源研究所 |
| 作者单位 | 1.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 |
| 推荐引用方式 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). |
入库方式： OAI收割
来源：广州能源研究所
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