Brownian Dynamics Simulations of Colloidal Suspensions Containing Polymers as Precursors of Composite Electrodes for Lithium Batteries

被引：38

作者：

Cerbelaud, Manuella ^{[1
]}

Lestriez, Bernard ^{[1
]}

Guyomard, Dominique ^{[1
]}

Videcoq, Arnaud ^{[2
]}

Ferrando, Riccardo ^{[3
,4
]}

机构：

[1] Univ Nantes, CNRS, Inst Mat Jean Rouxel IMN, F-44322 Nantes 3, France

[2] CNRS, SPCTS, UMR 7315, ENSCI,Ctr Europeen Ceram, F-87068 Limoges, France

[3] Dipartimento Fis, I-16146 Genoa, Italy

[4] CNR IMEM, I-16146 Genoa, Italy

来源：

LANGMUIR | 2012年 / 28卷 / 29期

关键词：

LI-ION BATTERIES; SODIUM CARBOXYMETHYL CELLULOSE; SI NEGATIVE ELECTRODES; BINDING MECHANISM; CYCLE LIFE; ADSORPTION; AGGREGATION; PARTICLES; SURFACES; KINETICS;

D O I：

10.1021/la302135v

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Dilute aqueous suspensions of silicon nanoparticles and sodium carboxymethylcellulose salt (CMC) are studied experimentally and numerically by Brownian dynamics simulations. The study focuses on the adsorption of CMC on silicon and on the aggregation state as a function of the suspension composition. To perform simulations, a coarse-grained model has first been developed for the CMC Molecules. Then, this model has been applied to study numerically the behavior of suspensions of silicon and CMC. Simulation parameters have been fixed on the basis of experimental characterizations. Results of Brownian dynamics simulations performed with our model are found in qualitative good agreement with experiments and allow a good description of the main features of the experimental behavior.

引用

页码：10713 / 10724

页数：12

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