Dielectric Relaxation of Ethylene Carbonate and Propylene Carbonate from Molecular Dynamics Simulations | Zendy

Xinli You | Zendy; Mangesh I. Chaudhari | Zendy; Susan B. Rempe | Zendy; Lawrence R. Pratt | Zendy

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Dielectric Relaxation of Ethylene Carbonate and Propylene Carbonate from Molecular Dynamics Simulations

Author(s) -

Xinli You,

Mangesh I. Chaudhari,

Susan B. Rempe,

Lawrence R. Pratt

Publication year - 2015

Publication title -

the journal of physical chemistry b

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.864

H-Index - 392

eISSN - 1520-6106

pISSN - 1520-5207

DOI - 10.1021/acs.jpcb.5b09561

Subject(s) - propylene carbonate , ethylene carbonate , molecular dynamics , dielectric , dissolution , diffusion , relaxation (psychology) , solvent , carbonate , materials science , ion , chemical physics , lithium (medication) , dimethyl carbonate , chemical engineering , chemistry , thermodynamics , computational chemistry , organic chemistry , electrolyte , physics , electrode , optoelectronics , social psychology , methanol , metallurgy , engineering , endocrinology , psychology , medicine

Ethylene carbonate (EC) and propylene carbonate (PC) are widely used solvents in lithium (Li)-ion batteries and supercapacitors. Ion dissolution and diffusion in those media are correlated with solvent dielectric responses. Here, we use all-atom molecular dynamics simulations of the pure solvents to calculate dielectric constants and relaxation times, and molecular mobilities. The computed results are compared with limited available experiments to assist more exhaustive studies of these important characteristics. The observed agreement is encouraging and provides guidance for further validation of force-field simulation models for EC and PC solvents.

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